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Rezaie N, D'Andrea E, Scartazza A, Gričar J, Prislan P, Calfapietra C, Battistelli A, Moscatello S, Proietti S, Matteucci G. Upside down and the game of C allocation. Tree Physiol 2023:tpad034. [PMID: 36917230 DOI: 10.1093/treephys/tpad034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/02/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Non-structural carbohydrates (NSCs) represent the primary carbon (C) reserves and play a crucial role for plant functioning and resilience. Indeed, these compounds are involved in the regulation between C supply and demand, and in the maintenance of hydraulic efficiency. NSCs are stored in parenchyma of woody organs, which is recognized as a proxy for reserve storage capacity of tree. Notwithstanding the importance of NSCs for tree physiology, their long-term regulation and trade-offs against growth were not deeply investigated. This work evaluated the long-term dynamics of mature tree reserves in stem and root, proxied by parenchyma features, and focusing on the trade off and interplay between the resources allocation in radial growth and reserves in stem and coarse root. In a Mediterranean beech forest, NSCs content, stem and root wood anatomy analysis, and eddy covariance data, were combined. The parenchyma fraction (RAP) of beech root and stem was different, due to differences in axial parenchyma (AP) and narrow ray parenchyma (nRP) fractions. However, these parenchyma components and radial growth showed synchronous inter-annual dynamics between the two organs. In beech stem, positive correlations were found among soluble sugars content and nRP, and among starch content and the AP. Positive correlations were found among Net Ecosystem Exchange (NEE) and AP of both organs. In contrast, NEE was negatively correlated to radial growth of root and stem. Our results suggest a different contribution of stem and roots to reserves storage, and a putative partitioning in the functional roles of parenchyma components. Moreover, a long-term trade-off of C allocation between growth and reserve pool was evidenced. Indeed, in case of C source reduction, trees preferentially allocate C towards reserves pool. Conversely, in high productive years, growth represents the major C sink.
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Affiliation(s)
- Negar Rezaie
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Via P. Castellino n. 111, 80131 Napoli, Italy
| | - Ettore D'Andrea
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano (TR), Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Andrea Scartazza
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Via Moruzzi 1, 56124 Pisa, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Jožica Gričar
- Slovenian Forestry Institute, Večna pot 2, 1000 Ljubljana, Slovenia
| | - Peter Prislan
- Slovenian Forestry Institute, Večna pot 2, 1000 Ljubljana, Slovenia
| | - Carlo Calfapietra
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano (TR), Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Alberto Battistelli
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano (TR), Italy
| | - Stefano Moscatello
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano (TR), Italy
| | - Simona Proietti
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano (TR), Italy
| | - Giorgio Matteucci
- Institute for BioEconomy, National Research Council of Italy (CNR-IBE), via Madonna del Piano, 10 - 50019 Sesto Fiorentino (FI), Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
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2
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Scartazza A, Sbrana C, D'Andrea E, Matteucci G, Rezaie N, Lauteri M. Above- and belowground interplay: Canopy CO 2 uptake, carbon and nitrogen allocation and isotope fractionation along the plant-ectomycorrhiza continuum. Plant Cell Environ 2023; 46:889-900. [PMID: 36541420 DOI: 10.1111/pce.14519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/02/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
In forests, mycorrhizal fungi regulate carbon (C) and nitrogen (N) dynamics. We evaluated the interplay among ectomycorrhizas (ECM), ecosystem C fluxes, tree productivity, C and N exchange and isotopic fractionation along the soil-ECM-plant continuum in a Mediterranean beech forest. From bud break to leaf shedding, we monitored: net ecosystem exchange (NEE, a measure of the net exchange of C between an ecosystem and the atmosphere), leaf area index, stem growth, N concentration, δ13 C and δ15 N in rhizosphere soil, ectomycorrhizal fine root tips (ERT), ECM-free fine root portions (NCR) and leaves. Seasonal changes in ERT relative biomass were strictly related to NEE and mimicked those detected in the radial growth. The analysis of δ13 C in ERT, leaves and NCR highlighted the impact of canopy photosynthesis on ERT development and an asynchronous seasonal C allocation strategy between ERT and NCR at the root tips level. Concerning N, δ15 N of leaves was negatively related to that of ERT and dependent on seasonal 15 N differences between ERT and NCR. Our results unravel a synchronous C allocation towards ERT and tree stem driven by the increasing NEE in spring-early summer. Moreover, they highlighted a phenology-dependent 15 N fractionation during N transfer from ECM to their hosts. This evidence, obtained in mature beech trees under natural conditions, may improve the knowledge of Mediterranean forests functionality.
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Affiliation(s)
- Andrea Scartazza
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Pisa, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Cristiana Sbrana
- Institute of Agricultural Biology and Biotechnology, National Research Council of Italy (CNR-IBBA), Pisa, Italy
| | - Ettore D'Andrea
- National Biodiversity Future Center (NBFC), Palermo, Italy
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Porano, Italy
| | - Giorgio Matteucci
- National Biodiversity Future Center (NBFC), Palermo, Italy
- Institute for BioEconomy, National Research Council of Italy (CNR-IBE), Sesto Fiorentino, Italy
| | - Negar Rezaie
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Napoli, Italy
| | - Marco Lauteri
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Porano, Italy
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3
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Testolin R, Dalmonech D, Marano G, Bagnara M, D'Andrea E, Matteucci G, Noce S, Collalti A. Simulating diverse forest management options in a changing climate on a Pinus nigra subsp. laricio plantation in Southern Italy. Sci Total Environ 2023; 857:159361. [PMID: 36252656 DOI: 10.1016/j.scitotenv.2022.159361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/07/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Mediterranean pine plantations provide several ecosystem services but are vulnerable to climate change. Forest management might play a strategic role in the adaptation of Mediterranean forests, but the joint effect of climate change and diverse management options have seldom been investigated together. Here, we simulated the development of a Laricio pine (Pinus nigra subsp. laricio) stand in the Bonis watershed (southern Italy) from its establishment in 1958 up to 2095 using a state-of-the-science process-based forest model. The model was run under three climate scenarios corresponding to increasing levels of atmospheric CO2 concentration and warming, and six management options with different goals, including wood production and renaturalization. We analysed the effect of climate change on annual carbon fluxes (i.e., gross and net primary production) and stocks (i.e., basal area, standing and harvested carbon woody stocks) of the autotrophic compartment, as well as the impact of different management options compared to a no management baseline. Results show that higher temperatures (+3 to +5 °C) and lower precipitation (-20 % to -22 %) will trigger a decrease in net primary productivity in the second half of the century. Compared to no management, the other options had a moderate effect on carbon fluxes over the whole simulation (between -14 % and +11 %). While standing woody biomass was reduced by thinning interventions and the shelterwood system (between -5 % and -41 %), overall carbon stocks including the harvested wood were maximized (between +41 % and +56 %). Results highlight that management exerts greater effects on the carbon budget of Laricio pine plantations than climate change alone, and that climate change and management are largely independent (i.e., no strong interaction effects). Therefore, appropriate silvicultural strategies might enhance potential carbon stocks and improve forest conditions, with cascading positive effects on the provision of ecosystem services in Mediterranean pine plantations.
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Affiliation(s)
- Riccardo Testolin
- National Research Council of Italy, Forest Modelling Lab., Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Via Madonna Alta 128, 06128 Perugia, Italy; BIOME Lab., Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, Via Irnerio 42, 40126 Bologna, Italy; Centro Interuniversitario per la Biodiversità Vegetale Big Data - PLANT DATA, Department of Biological, Geological and Environmental Sciences, Alma Mater Studiorum University of Bologna, Via Irnerio 42, 40126 Bologna, Italy; LifeWatch, Italy.
| | - Daniela Dalmonech
- National Research Council of Italy, Forest Modelling Lab., Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Via Madonna Alta 128, 06128 Perugia, Italy
| | - Gina Marano
- National Research Council of Italy, Forest Modelling Lab., Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Via Madonna Alta 128, 06128 Perugia, Italy; Forest Ecology, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland
| | - Maurizio Bagnara
- Senckenberg Biodiversity and Climate Research Centre (SBiKF), Senckenberganlage 25, 60325 Frankfurt Am Main, Germany
| | - Ettore D'Andrea
- National Research Council of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), Via G. Marconi n. 2, 05010 Porano, Italy
| | - Giorgio Matteucci
- National Research Council of Italy, Institute of BioEconomy (CNR-IBE), via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Sergio Noce
- Foundation Euro-Mediterranean Centre on Climate Change, Division Impacts on Agriculture, Forests and Ecosystem Services (CMCC-IAFES), 01100 Viterbo, Italy
| | - Alessio Collalti
- National Research Council of Italy, Forest Modelling Lab., Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Via Madonna Alta 128, 06128 Perugia, Italy
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4
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Mahnken M, Cailleret M, Collalti A, Trotta C, Biondo C, D'Andrea E, Dalmonech D, Marano G, Mäkelä A, Minunno F, Peltoniemi M, Trotsiuk V, Nadal-Sala D, Sabaté S, Vallet P, Aussenac R, Cameron DR, Bohn FJ, Grote R, Augustynczik ALD, Yousefpour R, Huber N, Bugmann H, Merganičová K, Merganic J, Valent P, Lasch-Born P, Hartig F, Vega Del Valle ID, Volkholz J, Gutsch M, Matteucci G, Krejza J, Ibrom A, Meesenburg H, Rötzer T, van der Maaten-Theunissen M, van der Maaten E, Reyer CPO. Accuracy, realism and general applicability of European forest models. Glob Chang Biol 2022; 28:6921-6943. [PMID: 36117412 DOI: 10.1111/gcb.16384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/01/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
Forest models are instrumental for understanding and projecting the impact of climate change on forests. A considerable number of forest models have been developed in the last decades. However, few systematic and comprehensive model comparisons have been performed in Europe that combine an evaluation of modelled carbon and water fluxes and forest structure. We evaluate 13 widely used, state-of-the-art, stand-scale forest models against field measurements of forest structure and eddy-covariance data of carbon and water fluxes over multiple decades across an environmental gradient at nine typical European forest stands. We test the models' performance in three dimensions: accuracy of local predictions (agreement of modelled and observed annual data), realism of environmental responses (agreement of modelled and observed responses of daily gross primary productivity to temperature, radiation and vapour pressure deficit) and general applicability (proportion of European tree species covered). We find that multiple models are available that excel according to our three dimensions of model performance. For the accuracy of local predictions, variables related to forest structure have lower random and systematic errors than annual carbon and water flux variables. Moreover, the multi-model ensemble mean provided overall more realistic daily productivity responses to environmental drivers across all sites than any single individual model. The general applicability of the models is high, as almost all models are currently able to cover Europe's common tree species. We show that forest models complement each other in their response to environmental drivers and that there are several cases in which individual models outperform the model ensemble. Our framework provides a first step to capturing essential differences between forest models that go beyond the most commonly used accuracy of predictions. Overall, this study provides a point of reference for future model work aimed at predicting climate impacts and supporting climate mitigation and adaptation measures in forests.
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Affiliation(s)
- Mats Mahnken
- Potsdam Institute for Climate Impact Research (PIK), Leibniz Association, Potsdam, Germany
- Forest Growth and Woody Biomass Production, TU Dresden, Tharandt, Germany
| | - Maxime Cailleret
- UMR RECOVER, INRAE, Aix-Marseille University, Aix-en-Provence, France
- Forest Dynamics Unit, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - Alessio Collalti
- Forest Modelling Lab, National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Perugia, Italy
- Department of Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Viterbo, Italy
- Division Impacts on Agriculture, Forests and Ecosystem Services (IAFES), Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Viterbo, Italy
| | - Carlo Trotta
- Department of Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Viterbo, Italy
- Division Impacts on Agriculture, Forests and Ecosystem Services (IAFES), Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Viterbo, Italy
| | - Corrado Biondo
- Department of Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Viterbo, Italy
- Division Impacts on Agriculture, Forests and Ecosystem Services (IAFES), Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici, Viterbo, Italy
| | - Ettore D'Andrea
- Forest Modelling Lab, National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Perugia, Italy
| | - Daniela Dalmonech
- Forest Modelling Lab, National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Perugia, Italy
| | - Gina Marano
- Forest Modelling Lab, National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Perugia, Italy
- Department of Environmental Systems Science, Forest Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland
| | - Annikki Mäkelä
- Department of Forest Sciences, Institute for Atmospheric and Earth System Research (INAR) and Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Francesco Minunno
- Department of Forest Sciences, Institute for Atmospheric and Earth System Research (INAR) and Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | | | - Volodymyr Trotsiuk
- Forest Dynamics Unit, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - Daniel Nadal-Sala
- Institute of Meteorology and Climate Research - Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, Germany
- Ecology Section, Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona (UB), Barcelona, Spain
| | - Santiago Sabaté
- Ecology Section, Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona (UB), Barcelona, Spain
- CREAF (Center for Ecological Research and Forestry Applications), Cerdanyola del Vallès, Spain
| | - Patrick Vallet
- LESSEM, INRAE, Univ. Grenoble Alpes, St-Martin-d'Hères, France
| | | | - David R Cameron
- UK Centre for Ecology and Hydrology, Penicuik, Midlothian, UK
| | - Friedrich J Bohn
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Rüdiger Grote
- Institute of Meteorology and Climate Research - Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, Germany
| | | | - Rasoul Yousefpour
- Forestry Economics and Forest Planning, University of Freiburg, Freiburg, Germany
- Institute of Forestry and Conservation, John Daniels Faculty of Architecture, Landscape and Design, University of Toronto, Toronto, Ontario, Canada
| | - Nica Huber
- Department of Environmental Systems Science, Forest Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland
- Remote Sensing, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - Harald Bugmann
- Department of Environmental Systems Science, Forest Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland
| | - Katarina Merganičová
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Praha, Czech Republic
- Department of Biodiversity of Ecosystems and Landscape, Institute of Landscape Ecology, Slovak Academy of Sciences, Nitra, Slovakia
| | - Jan Merganic
- Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic
| | - Peter Valent
- Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic
| | - Petra Lasch-Born
- Potsdam Institute for Climate Impact Research (PIK), Leibniz Association, Potsdam, Germany
| | - Florian Hartig
- Theoretical Ecology, University of Regensburg, Regensburg, Germany
| | | | - Jan Volkholz
- Potsdam Institute for Climate Impact Research (PIK), Leibniz Association, Potsdam, Germany
| | - Martin Gutsch
- Potsdam Institute for Climate Impact Research (PIK), Leibniz Association, Potsdam, Germany
| | - Giorgio Matteucci
- Forest Modelling Lab, National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Perugia, Italy
| | - Jan Krejza
- Global Change Research Institute CAS, Brno, Czech Republic
- Department of Forest Ecology, Mendel University in Brno, Brno, Czech Republic
| | - Andreas Ibrom
- Department of Environmental Engineering, Technical University of Denmark (DTU), Lyngby, Denmark
| | | | - Thomas Rötzer
- Forest Growth and Yield Science, TU München, Freising, Germany
| | | | | | - Christopher P O Reyer
- Potsdam Institute for Climate Impact Research (PIK), Leibniz Association, Potsdam, Germany
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Teglia A, Di Baccio D, Matteucci G, Scartazza A, De Cinti B, Mazzenga F, Ravaioli D, Muzzi E, Marcolini G, Magnani F. Effects of simulated nitrogen deposition on the nutritional and physiological status of beech forests at two climatic contrasting sites in Italy. Sci Total Environ 2022; 834:155362. [PMID: 35460784 DOI: 10.1016/j.scitotenv.2022.155362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/31/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
Anthropogenic activities have resulted in a significant increase of reactive nitrogen (N) compounds in the atmosphere and a rise in N deposition on forest ecosystems. Increasing N loads impact forest productivity and health, altering tree physiological status and nutrient balance with possible beneficial and detrimental consequences. The impact of N deposition has received considerable attention by scientific research, covering medium and high latitudes, while experimental studies in the Mediterranean area are almost absent. The present study used a manipulative approach, through replicated N additions (background deposition, 30, 60 kg N ha-1yr-1) to simulate the cumulative effects of N deposition in two beech (Fagus sylvaticaL.) forests located in contrasting climatic regions of Italy. Leaf nutrients and photosynthetic pigments were tested as monitoring indicators after four years of N fertilization. Foliar N and pigment concentrations indicated not limiting N conditions at both forest sites, although changes in chlorophylls and carotenoids showed an early response of the canopy to N additions. N-to-phosphorus (P) and sulfur (S) ratios increased under elevated N fertilization, which could be partly related to the relative enhancement of foliar N concentration, and partly associated with the reduction of foliar P and S. The two eutrophic beech forests monitored were not severely affected by chronic N addition, not showing critical nutritional and physiological impairments over the short to medium period. However, the modifications in leaf nutrient and pigment compositions showed an incipient stress response and accentuated the differences induced by climatic and soil characteristics at the two sites. The potential use of nutrients and photosynthetic pigments in monitoring forest N deposition under contrasting climatic conditions and the eventual limits of manipulative experiments are discussed.
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Affiliation(s)
- Alessandra Teglia
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin 44, Bologna, Italy.
| | - Daniela Di Baccio
- National Research Council of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), Via Giuseppe Moruzzi 1, Pisa, Italy
| | - Giorgio Matteucci
- National Research Council of Italy, Institute of BioEconomy (CNR-IBE), Via Madonna del Piano, 10, 50019 Sesto Fiorentino, FI, Italy
| | - Andrea Scartazza
- National Research Council of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), Via Giuseppe Moruzzi 1, Pisa, Italy
| | - Bruno De Cinti
- National Research Council of Italy, Institute for Terrestrial Ecosystems (CNR-IRET), Via Salaria km 29,300, Montelibretti, RM, Italy
| | - Francesco Mazzenga
- National Research Council of Italy, Institute of BioEconomy (CNR-IBE), via dei Taurini 19, 00185, Rome
| | - Dario Ravaioli
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin 44, Bologna, Italy
| | - Enrico Muzzi
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin 44, Bologna, Italy
| | - Graziella Marcolini
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin 44, Bologna, Italy
| | - Federico Magnani
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin 44, Bologna, Italy
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6
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de Wergifosse L, André F, Goosse H, Boczon A, Cecchini S, Ciceu A, Collalti A, Cools N, D'Andrea E, De Vos B, Hamdi R, Ingerslev M, Knudsen MA, Kowalska A, Leca S, Matteucci G, Nord-Larsen T, Sanders TG, Schmitz A, Termonia P, Vanguelova E, Van Schaeybroeck B, Verstraeten A, Vesterdal L, Jonard M. Simulating tree growth response to climate change in structurally diverse oak and beech forests. Sci Total Environ 2022; 806:150422. [PMID: 34852431 DOI: 10.1016/j.scitotenv.2021.150422] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/23/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to simulate oak and beech forest growth under various scenarios of climate change and to evaluate how the forest response depends on site properties and particularly on stand characteristics using the individual process-based model HETEROFOR. First, this model was evaluated on a wide range of site conditions. We used data from 36 long-term forest monitoring plots to initialize, calibrate, and evaluate HETEROFOR. This evaluation showed that HETEROFOR predicts individual tree radial growth and height increment reasonably well under different growing conditions when evaluated on independent sites. In our simulations under constant CO2 concentration ([CO2]cst) for the 2071-2100 period, climate change induced a moderate net primary production (NPP) gain in continental and mountainous zones and no change in the oceanic zone. The NPP changes were negatively affected by air temperature during the vegetation period and by the annual rainfall decrease. To a lower extent, they were influenced by soil extractable water reserve and stand characteristics. These NPP changes were positively affected by longer vegetation periods and negatively by drought for beech and larger autotrophic respiration costs for oak. For both species, the NPP gain was much larger with rising CO2 concentration ([CO2]var) mainly due to the CO2 fertilisation effect. Even if the species composition and structure had a limited influence on the forest response to climate change, they explained a large part of the NPP variability (44% and 34% for [CO2]cst and [CO2]var, respectively) compared to the climate change scenario (5% and 29%) and the inter-annual climate variability (20% and 16%). This gives the forester the possibility to act on the productivity of broadleaved forests and prepare them for possible adverse effects of climate change by reinforcing their resilience.
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Affiliation(s)
- Louis de Wergifosse
- Earth and Life Institute: Environmental Sciences, UCLouvain, 1, Croix du Sud, 1348 Louvain-la-Neuve, Belgium; Earth and Life Institute: Earth and Climate, UCLouvain, 3, Place Louis Pasteur, 1348 Louvain-la-Neuve, Belgium.
| | - Frédéric André
- Earth and Life Institute: Environmental Sciences, UCLouvain, 1, Croix du Sud, 1348 Louvain-la-Neuve, Belgium
| | - Hugues Goosse
- Earth and Life Institute: Earth and Climate, UCLouvain, 3, Place Louis Pasteur, 1348 Louvain-la-Neuve, Belgium
| | - Andrzej Boczon
- Forest Research Institute, Sekocin Stary, ul. Braci Lesnej 3, 05-090 Raszyn, Poland
| | - Sébastien Cecchini
- Office National des Forêts, Département Recherche-Développement-Innovation, Bâtiment B, Boulevard de Constance, 77300 Fontainebleau, France
| | - Albert Ciceu
- Forest Management Department, National Institute for Research and Development in Forestry INCDS Marin Drăcea, 128, Bulevardul Eroilor, 077190 Voluntari, Romania; Department of Forest Engineering, Forest Management Planning and Terrestrial Measurements, Faculty of Silviculture and Forest Engineering, "Transilvania" University, 1 Ludwig van Beethoven Str., 500123 Braşov, Romania
| | - Alessio Collalti
- Forest Modelling Lab., Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM), Via Madonna Alta 128, 06128 Perugia, PG, Italy; Department of Innovation in Biological, Agro-food and Forest Systems (DIBAF), University of Tuscia, via San Camillo de Lellis, 01100 Viterbo, VT, Italy
| | - Nathalie Cools
- Research Institute for Nature and Forest (INBO), 4, Gaverstraat, 9500 Geraardsbergen, Belgium
| | - Ettore D'Andrea
- Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy 8 (CNR-ISAFOM), P. le Enrico Fermi 1 Loc. Porto del Granatello, 80055 Portici, NA, Italy
| | - Bruno De Vos
- Research Institute for Nature and Forest (INBO), 4, Gaverstraat, 9500 Geraardsbergen, Belgium
| | - Rafiq Hamdi
- Royal Meteorological Institute of Belgium, 3, Avenue circulaire, 1180 Brussels, Belgium
| | - Morten Ingerslev
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark
| | - Morten Alban Knudsen
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark
| | - Anna Kowalska
- Forest Research Institute, Sekocin Stary, ul. Braci Lesnej 3, 05-090 Raszyn, Poland
| | - Stefan Leca
- Forest Management Department, National Institute for Research and Development in Forestry INCDS Marin Drăcea, 128, Bulevardul Eroilor, 077190 Voluntari, Romania
| | - Giorgio Matteucci
- Institute for BioEconomy, National Research Council of Italy (CNR-IBE), via Madonna del Piano, 10 50019 Sesto Fiorentino, FI, Italy
| | - Thomas Nord-Larsen
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark
| | - Tanja Gm Sanders
- Thünen Institute of Forest Ecosystems, Alfred-Moeller-Str. 1, Haus 41/42, 16225 Eberswalde, Germany
| | - Andreas Schmitz
- Department of Silviculture and Forest Ecology of the Temperate Zones, University of Göttingen, 1, Büsgenweg, 37077 Göttingen, Germany; State Agency for Nature, Environment and Consumer Protection of North Rhine-Westphalia, 10, Leibnizstraße, 45659 Recklinghausen, Germany; Department of Silviculture and Forest Ecology of the Temperate Zones, University of Göttingen, 1, Büsgenweg, 37077 Göttingen, Germany
| | - Piet Termonia
- Royal Meteorological Institute of Belgium, 3, Avenue circulaire, 1180 Brussels, Belgium; Department of Physics and Astronomy, Ghent University, 86, Proeftuinstraat, 9000 Ghent, Belgium
| | - Elena Vanguelova
- Centre of Ecosystem, Society and Biosecurity, Forest Research, Alice Holt Lodge, Farnham, Surrey GU10 4LH, UK
| | - Bert Van Schaeybroeck
- Royal Meteorological Institute of Belgium, 3, Avenue circulaire, 1180 Brussels, Belgium
| | - Arne Verstraeten
- Research Institute for Nature and Forest (INBO), 4, Gaverstraat, 9500 Geraardsbergen, Belgium
| | - Lars Vesterdal
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark
| | - Mathieu Jonard
- Earth and Life Institute: Environmental Sciences, UCLouvain, 1, Croix du Sud, 1348 Louvain-la-Neuve, Belgium
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7
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D'Andrea E, Scartazza A, Battistelli A, Collalti A, Proietti S, Rezaie N, Matteucci G, Moscatello S. Unravelling resilience mechanisms in forests: role of non-structural carbohydrates in responding to extreme weather events. Tree Physiol 2021; 41:1808-1818. [PMID: 33823054 DOI: 10.1093/treephys/tpab044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/02/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
Extreme weather events are increasing in frequency and intensity due to global climate change. We hypothesized that tree carbon reserves are crucial for resilience of beech, buffering the source-sink imbalance due to late frosts and summer droughts, and that different components of non-structural carbohydrates (NSCs) play specific roles in coping with stressful situations. To assess the compound effects on mature trees of two extreme weather events, first a late frost in spring 2016 and then a drought in summer 2017, we monitored the phenology, radial growth and the dynamics of starch and soluble sugars in a Mediterranean beech forest. A growth reduction of 85% was observed after the spring late frost, yet not after the drought event. We observed a strong impact of late frost on starch, which also affected its dynamic at the beginning of the subsequent vegetative season. In 2017, the increase of soluble sugars, associated with starch hydrolysis, played a crucial role in coping with the severe summer drought. Non-structural carbohydrates helped to counteract the negative effects of both events, supporting plant survival and buffering source-sink imbalances under stressful conditions. Our findings indicate a strong trade-off between growth and NSC storage in trees. Overall, our results highlight the key role of NSCs on beech trees, response to extreme weather events, confirming the resilience of this species to highly stressful events. These insights are useful for assessing how forests may respond to the potential impacts of climate change on ecosystem processes in the Mediterranean area.
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Affiliation(s)
- Ettore D'Andrea
- Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM), P. le Enrico Fermi 1 - Loc. Porto del Granatello, 80055 Portici, Naples, Italy
| | - Andrea Scartazza
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), Via Moruzzi 1, 56124 Pisa, Italy
| | - Alberto Battistelli
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano, Terni, Italy
| | - Alessio Collalti
- Forest Modelling Laboratory, Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM), Via Madonna Alta 128, 06128 Perugia, Italy
- Department of Innovation in Biological, Agro-food and Forest Systems (DIBAF), University of Tuscia, via San Camillo de Lellis, 01100 Viterbo, Italy
| | - Simona Proietti
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano, Terni, Italy
| | - Negar Rezaie
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano, Terni, Italy
| | - Giorgio Matteucci
- Institute for BioEconomy, National Research Council of Italy (CNR-IBE), via Madonna del Piano, 10 50019 Sesto Fiorentino, Florence, Italy
| | - Stefano Moscatello
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy (CNR-IRET), via Marconi 2, 05010 Porano, Terni, Italy
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8
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Migliavacca M, Musavi T, Mahecha MD, Nelson JA, Knauer J, Baldocchi DD, Perez-Priego O, Christiansen R, Peters J, Anderson K, Bahn M, Black TA, Blanken PD, Bonal D, Buchmann N, Caldararu S, Carrara A, Carvalhais N, Cescatti A, Chen J, Cleverly J, Cremonese E, Desai AR, El-Madany TS, Farella MM, Fernández-Martínez M, Filippa G, Forkel M, Galvagno M, Gomarasca U, Gough CM, Göckede M, Ibrom A, Ikawa H, Janssens IA, Jung M, Kattge J, Keenan TF, Knohl A, Kobayashi H, Kraemer G, Law BE, Liddell MJ, Ma X, Mammarella I, Martini D, Macfarlane C, Matteucci G, Montagnani L, Pabon-Moreno DE, Panigada C, Papale D, Pendall E, Penuelas J, Phillips RP, Reich PB, Rossini M, Rotenberg E, Scott RL, Stahl C, Weber U, Wohlfahrt G, Wolf S, Wright IJ, Yakir D, Zaehle S, Reichstein M. The three major axes of terrestrial ecosystem function. Nature 2021; 598:468-472. [PMID: 34552242 PMCID: PMC8528706 DOI: 10.1038/s41586-021-03939-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 08/20/2021] [Indexed: 02/08/2023]
Abstract
The leaf economics spectrum1,2 and the global spectrum of plant forms and functions3 revealed fundamental axes of variation in plant traits, which represent different ecological strategies that are shaped by the evolutionary development of plant species2. Ecosystem functions depend on environmental conditions and the traits of species that comprise the ecological communities4. However, the axes of variation of ecosystem functions are largely unknown, which limits our understanding of how ecosystems respond as a whole to anthropogenic drivers, climate and environmental variability4,5. Here we derive a set of ecosystem functions6 from a dataset of surface gas exchange measurements across major terrestrial biomes. We find that most of the variability within ecosystem functions (71.8%) is captured by three key axes. The first axis reflects maximum ecosystem productivity and is mostly explained by vegetation structure. The second axis reflects ecosystem water-use strategies and is jointly explained by variation in vegetation height and climate. The third axis, which represents ecosystem carbon-use efficiency, features a gradient related to aridity, and is explained primarily by variation in vegetation structure. We show that two state-of-the-art land surface models reproduce the first and most important axis of ecosystem functions. However, the models tend to simulate more strongly correlated functions than those observed, which limits their ability to accurately predict the full range of responses to environmental changes in carbon, water and energy cycling in terrestrial ecosystems7,8.
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Affiliation(s)
- Mirco Migliavacca
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany ,grid.9647.c0000 0004 7669 9786German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany ,grid.434554.70000 0004 1758 4137Present Address: European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Talie Musavi
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Miguel D. Mahecha
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany ,grid.9647.c0000 0004 7669 9786German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany ,grid.9647.c0000 0004 7669 9786Remote Sensing Center for Earth System Research, Leipzig University, Leipzig, Germany ,grid.7492.80000 0004 0492 3830Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany
| | - Jacob A. Nelson
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Jürgen Knauer
- grid.492990.f0000 0004 0402 7163CSIRO Oceans and Atmosphere, Canberra, Australian Capital Territory Australia ,grid.1029.a0000 0000 9939 5719Present Address: Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales Australia
| | - Dennis D. Baldocchi
- grid.47840.3f0000 0001 2181 7878Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA USA
| | - Oscar Perez-Priego
- grid.411901.c0000 0001 2183 9102Department of Forest Engineering, ERSAF Research Group, University of Cordoba, Cordoba, Spain
| | - Rune Christiansen
- grid.5254.60000 0001 0674 042XDepartment of Mathematical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jonas Peters
- grid.5254.60000 0001 0674 042XDepartment of Mathematical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Karen Anderson
- grid.8391.30000 0004 1936 8024Environment and Sustainability Institute, University of Exeter, Penryn, UK
| | - Michael Bahn
- grid.5771.40000 0001 2151 8122Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - T. Andrew Black
- Faculty of Land and Food Systems, Vancouver, British Columbia Canada
| | - Peter D. Blanken
- grid.266190.a0000000096214564Department of Geography, University of Colorado, Boulder, CO USA
| | - Damien Bonal
- grid.29172.3f0000 0001 2194 6418Université de Lorraine, AgroParisTech, INRAE, UMR Silva, Nancy, France
| | - Nina Buchmann
- grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - Silvia Caldararu
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Arnaud Carrara
- grid.17095.3a0000 0000 8717 7992Fundación Centro de Estudios Ambientales del Mediterráneo (CEAM), Paterna, Spain
| | - Nuno Carvalhais
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany ,grid.10772.330000000121511713Departamento de Ciências e Engenharia do Ambiente, Universidade Nova de Lisboa, Caparica, Portugal
| | - Alessandro Cescatti
- grid.434554.70000 0004 1758 4137European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Jiquan Chen
- grid.17088.360000 0001 2150 1785Landscape Ecology & Ecosystem Science (LEES) Lab, Center for Global Change and Earth Observations, and Department of Geography, Environmental and Spatial Science, Michigan State University, East Lansing, MI USA
| | - Jamie Cleverly
- grid.117476.20000 0004 1936 7611School of Life Sciences, University of Technology Sydney, Ultimo, New South Wales Australia ,grid.1011.10000 0004 0474 1797Terrestrial Ecosystem Research Network, College of Science and Engineering, James Cook University, Cairns, Queensland Australia
| | - Edoardo Cremonese
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Aosta, Italy
| | - Ankur R. Desai
- grid.14003.360000 0001 2167 3675Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI USA
| | - Tarek S. El-Madany
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Martha M. Farella
- grid.411377.70000 0001 0790 959XO’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN USA
| | - Marcos Fernández-Martínez
- grid.5284.b0000 0001 0790 3681Research Group Plant and Ecosystems (PLECO), Department of Biology, University of Antwerp, Wilrijk, Belgium
| | - Gianluca Filippa
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Aosta, Italy
| | - Matthias Forkel
- grid.4488.00000 0001 2111 7257Institute of Photogrammetry and Remote Sensing, TU Dresden, Dresden, Germany
| | - Marta Galvagno
- Climate Change Unit, Environmental Protection Agency of Aosta Valley, Aosta, Italy
| | - Ulisse Gomarasca
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Christopher M. Gough
- grid.224260.00000 0004 0458 8737Department of Biology, Virginia Commonwealth University, Richmond, VA USA
| | - Mathias Göckede
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Andreas Ibrom
- grid.5170.30000 0001 2181 8870Department of Environmental Engineering, Technical University of Denmark (DTU), Kongens Lyngby, Denmark
| | - Hiroki Ikawa
- grid.416835.d0000 0001 2222 0432Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Ivan A. Janssens
- grid.5284.b0000 0001 0790 3681Research Group Plant and Ecosystems (PLECO), Department of Biology, University of Antwerp, Wilrijk, Belgium
| | - Martin Jung
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Jens Kattge
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany ,grid.9647.c0000 0004 7669 9786German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany
| | - Trevor F. Keenan
- grid.47840.3f0000 0001 2181 7878Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA USA ,grid.184769.50000 0001 2231 4551Earth and Environmental Science Area, Lawrence Berkeley National Laboratory, Berkeley, CA USA
| | - Alexander Knohl
- grid.7450.60000 0001 2364 4210Bioclimatology, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Goettingen, Germany ,grid.7450.60000 0001 2364 4210Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Goettingen, Germany
| | - Hideki Kobayashi
- grid.410588.00000 0001 2191 0132Research Institute for Global Change, Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
| | - Guido Kraemer
- grid.9647.c0000 0004 7669 9786Remote Sensing Center for Earth System Research, Leipzig University, Leipzig, Germany ,grid.5338.d0000 0001 2173 938XImage Processing Laboratory (IPL), Universitat de València, València, Spain
| | - Beverly E. Law
- grid.4391.f0000 0001 2112 1969Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR USA
| | - Michael J. Liddell
- grid.1011.10000 0004 0474 1797Centre for Tropical, Environmental, and Sustainability Sciences, James Cook University, Cairns, Queensland Australia
| | - Xuanlong Ma
- grid.32566.340000 0000 8571 0482College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China
| | - Ivan Mammarella
- grid.7737.40000 0004 0410 2071Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
| | - David Martini
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Craig Macfarlane
- grid.469914.70000 0004 0385 5215CSIRO Land and Water, Floreat, Western Australia Australia
| | - Giorgio Matteucci
- grid.5326.20000 0001 1940 4177Consiglio Nazionale delle Ricerche, Istituto per la BioEconomia (CNR – IBE), Sesto Fiorentino, Italy
| | - Leonardo Montagnani
- grid.34988.3e0000 0001 1482 2038Facoltà di Scienze e Tecnologie, Libera Universita’ di Bolzano, Bolzano, Italy ,Forest Services of the Autonomous Province of Bozen-Bolzano, Bolzano, Italy
| | | | - Cinzia Panigada
- grid.7563.70000 0001 2174 1754Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, Milan, Italy
| | - Dario Papale
- grid.12597.380000 0001 2298 9743Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Viterbo, Italy
| | - Elise Pendall
- grid.1029.a0000 0000 9939 5719Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales Australia
| | - Josep Penuelas
- grid.4711.30000 0001 2183 4846CSIC, Global Ecology Unit CREAF-CSIC-UAB, Barcelona, Spain ,grid.452388.00000 0001 0722 403XCREAF, Barcelona, Spain
| | - Richard P. Phillips
- grid.411377.70000 0001 0790 959XDepartment of Biology, Indiana University, Bloomington, IN USA
| | - Peter B. Reich
- grid.1029.a0000 0000 9939 5719Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales Australia ,grid.17635.360000000419368657Department of Forest Resources, University of Minnesota, Saint Paul, MN USA ,grid.214458.e0000000086837370Institute for Global Change Biology and School for Environment and Sustainability, University of Michigan, Ann Arbor, MI USA
| | - Micol Rossini
- grid.7563.70000 0001 2174 1754Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, Milan, Italy
| | - Eyal Rotenberg
- grid.13992.300000 0004 0604 7563Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Russell L. Scott
- grid.463419.d0000 0001 0946 3608Southwest Watershed Research Center, USDA Agricultural Research Service, Tucson, AZ USA
| | - Clement Stahl
- INRAE, UMR EcoFoG, CNRS, Cirad, AgroParisTech, Université des Antilles, Université de Guyane, Kourou, France
| | - Ulrich Weber
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Georg Wohlfahrt
- grid.5771.40000 0001 2151 8122Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Sebastian Wolf
- grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - Ian J. Wright
- grid.1029.a0000 0000 9939 5719Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales Australia ,grid.1004.50000 0001 2158 5405Department of Biological Sciences, Macquarie University, Sydney, New South Wales Australia
| | - Dan Yakir
- grid.13992.300000 0004 0604 7563Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Sönke Zaehle
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Markus Reichstein
- grid.419500.90000 0004 0491 7318Max Planck Institute for Biogeochemistry, Jena, Germany ,grid.9647.c0000 0004 7669 9786German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Germany ,grid.9613.d0000 0001 1939 2794Michael-Stifel-Center Jena for Data-driven and Simulation Science, Friedrich-Schiller-Universität Jena, Jena, Germany
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9
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Collalti A, Ibrom A, Stockmarr A, Cescatti A, Alkama R, Fernández-Martínez M, Matteucci G, Sitch S, Friedlingstein P, Ciais P, Goll DS, Nabel JEMS, Pongratz J, Arneth A, Haverd V, Prentice IC. Forest production efficiency increases with growth temperature. Nat Commun 2020; 11:5322. [PMID: 33087724 PMCID: PMC7578801 DOI: 10.1038/s41467-020-19187-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 09/18/2020] [Indexed: 01/23/2023] Open
Abstract
Forest production efficiency (FPE) metric describes how efficiently the assimilated carbon is partitioned into plants organs (biomass production, BP) or-more generally-for the production of organic matter (net primary production, NPP). We present a global analysis of the relationship of FPE to stand-age and climate, based on a large compilation of data on gross primary production and either BP or NPP. FPE is important for both forest production and atmospheric carbon dioxide uptake. We find that FPE increases with absolute latitude, precipitation and (all else equal) with temperature. Earlier findings-FPE declining with age-are also supported by this analysis. However, the temperature effect is opposite to what would be expected based on the short-term physiological response of respiration rates to temperature, implying a top-down regulation of carbon loss, perhaps reflecting the higher carbon costs of nutrient acquisition in colder climates. Current ecosystem models do not reproduce this phenomenon. They consistently predict lower FPE in warmer climates, and are therefore likely to overestimate carbon losses in a warming climate.
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Affiliation(s)
- A Collalti
- National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (ISAFOM), 06128, Perugia (PG), Italy
- University of Tuscia, Department of Innovation in Biological, Agro-food and Forest Systems (DIBAF), 01100, Viterbo, Italy
| | - A Ibrom
- Technical University of Denmark (DTU), Department of Environmental Engineering, Lyngby, Denmark.
| | - A Stockmarr
- Technical University of Denmark (DTU), Department of Applied Mathematics and Computer Science, Lyngby, Denmark
| | - A Cescatti
- European Commission, Joint Research Centre, Directorate for Sustainable Resources, Ispra, Italy
| | - R Alkama
- European Commission, Joint Research Centre, Directorate for Sustainable Resources, Ispra, Italy
| | - M Fernández-Martínez
- Research group PLECO (Plants and Ecosystems), Department of Biology, University of Antwerp, 2610, Wilrijk, Belgium
| | - G Matteucci
- National Research Council of Italy, Institute for BioEconomy (IBE), 50019, Sesto Fiorentino, FI, Italy
| | - S Sitch
- College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4RJ, UK
| | - P Friedlingstein
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, UK
| | - P Ciais
- Laboratoire des Sciences du Climat et del'Environnement, CEA CNRS UVSQ, Gif-sur-Yvette, 91191, France
| | - D S Goll
- Department of Geography, University of Augsburg, Augsburg, Germany
| | - J E M S Nabel
- Max Planck Institute for Meteorology, Hamburg, Germany
| | - J Pongratz
- Max Planck Institute for Meteorology, Hamburg, Germany
- Ludwig-Maximilians-Universität München, Luisenstr 37, 80333, Munich, Germany
| | - A Arneth
- Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research/Atmospheric Environmental Research, 82467, Garmisch-Partenkirchen, Germany
| | - V Haverd
- CSIRO Oceans and Atmosphere, Canberra, ACT, 2601, Australia
| | - I C Prentice
- Department of Life Sciences, Imperial College London, Silwood Park Campus, London, Ascot SL5 7PY, UK
- Department of Biological Sciences, Macquarie University, North Ryde, NSW, 2109, Australia
- Department of Earth System Science, Tsinghua University, 100084, Beijing, China
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10
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D'Andrea E, Rezaie N, Prislan P, Gričar J, Collalti A, Muhr J, Matteucci G. Frost and drought: Effects of extreme weather events on stem carbon dynamics in a Mediterranean beech forest. Plant Cell Environ 2020; 43:2365-2379. [PMID: 32705694 DOI: 10.1111/pce.13858] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
The effects of short-term extreme events on tree functioning and physiology are still rather elusive. European beech is one of the most sensitive species to late frost and water shortage. We investigated the intra-annual C dynamics in stems under such conditions. Wood formation and stem CO2 efflux were monitored in a Mediterranean beech forest for 3 years (2015-2017), including a late frost (2016) and a summer drought (2017). The late frost reduced radial growth and, consequently, the amount of carbon fixed in the stem biomass by 80%. Stem carbon dioxide efflux in 2016 was reduced by 25%, which can be attributed to the reduction of effluxes due to growth respiration. Counter to our expectations, we found no effects of the 2017 summer drought on radial growth and stem carbon efflux. The studied extreme weather events had various effects on tree growth. Even though late spring frost had a strong impact on beech radial growth in the current year, trees fully recovered in the following growing season, indicating high resilience of beech to this stressful event.
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Affiliation(s)
- Ettore D'Andrea
- National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Ercolano, Naples, Italy
| | - Negar Rezaie
- National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Ercolano, Naples, Italy
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Centro Ricerca Ingegneria e Trasformazioni Agroalimentari (CREA-IT), Monterotondo Scalo, Rome, Italy
| | | | | | - Alessio Collalti
- National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Perugia, Perugia, Italy
- Department of Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Viterbo, Italy
| | - Jan Muhr
- Bioclimatology, University of Göttingen, Göttingen, Germany
- Department of Biogeochemical Processes, Max-Planck-Institute for Biogeochemistry, Jena, Germany
| | - Giorgio Matteucci
- National Research Council of Italy, Institute for Agriculture and Forestry Systems in the Mediterranean (CNR-ISAFOM), Ercolano, Naples, Italy
- Institute for BioEconomy (CNR-IBE), National Research Council of Italy, Sesto Fiorentino, Florence, Italy
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11
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Collalti A, Tjoelker MG, Hoch G, Mäkelä A, Guidolotti G, Heskel M, Petit G, Ryan MG, Battipaglia G, Matteucci G, Prentice IC. Plant respiration: Controlled by photosynthesis or biomass? Glob Chang Biol 2020; 26:1739-1753. [PMID: 31578796 DOI: 10.1111/gcb.14857] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 10/01/2019] [Indexed: 06/10/2023]
Abstract
Two simplifying hypotheses have been proposed for whole-plant respiration. One links respiration to photosynthesis; the other to biomass. Using a first-principles carbon balance model with a prescribed live woody biomass turnover, applied at a forest research site where multidecadal measurements are available for comparison, we show that if turnover is fast the accumulation of respiring biomass is low and respiration depends primarily on photosynthesis; while if turnover is slow the accumulation of respiring biomass is high and respiration depends primarily on biomass. But the first scenario is inconsistent with evidence for substantial carry-over of fixed carbon between years, while the second implies far too great an increase in respiration during stand development-leading to depleted carbohydrate reserves and an unrealistically high mortality risk. These two mutually incompatible hypotheses are thus both incorrect. Respiration is not linearly related either to photosynthesis or to biomass, but it is more strongly controlled by recent photosynthates (and reserve availability) than by total biomass.
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Affiliation(s)
- Alessio Collalti
- Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM), Rende (CS), Italy
- Department of Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Viterbo, Italy
| | - Mark G Tjoelker
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Günter Hoch
- Department of Environmental Sciences - Botany, University of Basel, Basel, Switzerland
| | - Annikki Mäkelä
- Institute for Atmospheric and Earth System Research (INAR), Faculty of Science and Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Gabriele Guidolotti
- Institute of Research on Terrestrial Ecosystem, National Research Council of Italy (CNR-IRET), Rome, Italy
| | - Mary Heskel
- Department of Biology, Macalester College, Saint Paul, MN, USA
| | - Giai Petit
- Department of Land, Environment, Agriculture and Forestry, University of Padova, Padua, Italy
| | - Michael G Ryan
- Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, USA
- USDA Forest Service, Rocky Mountain Experiment Station, Fort Collins, CO, USA
| | - Giovanna Battipaglia
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "L. Vanvitelli", Caserta, Italy
| | - Giorgio Matteucci
- Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM), Rende (CS), Italy
| | - Iain Colin Prentice
- AXA Chair of Biosphere and Climate Impacts, Department of Life Sciences, Imperial College London, Ascot, UK
- Department of Biological Sciences, Macquarie University, North Ryde, NSW, Australia
- Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Tsinghua University, Beijing, China
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12
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Musche M, Adamescu M, Angelstam P, Bacher S, Bäck J, Buss HL, Duffy C, Flaim G, Gaillardet J, Giannakis GV, Haase P, Halada L, Kissling WD, Lundin L, Matteucci G, Meesenburg H, Monteith D, Nikolaidis NP, Pipan T, Pyšek P, Rowe EC, Roy DB, Sier A, Tappeiner U, Vilà M, White T, Zobel M, Klotz S. Research questions to facilitate the future development of European long-term ecosystem research infrastructures: A horizon scanning exercise. J Environ Manage 2019; 250:109479. [PMID: 31499467 DOI: 10.1016/j.jenvman.2019.109479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 08/23/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
Distributed environmental research infrastructures are important to support assessments of the effects of global change on landscapes, ecosystems and society. These infrastructures need to provide continuity to address long-term change, yet be flexible enough to respond to rapid societal and technological developments that modify research priorities. We used a horizon scanning exercise to identify and prioritize emerging research questions for the future development of ecosystem and socio-ecological research infrastructures in Europe. Twenty research questions covered topics related to (i) ecosystem structures and processes, (ii) the impacts of anthropogenic drivers on ecosystems, (iii) ecosystem services and socio-ecological systems and (iv), methods and research infrastructures. Several key priorities for the development of research infrastructures emerged. Addressing complex environmental issues requires the adoption of a whole-system approach, achieved through integration of biotic, abiotic and socio-economic measurements. Interoperability among different research infrastructures needs to be improved by developing standard measurements, harmonizing methods, and establishing capacities and tools for data integration, processing, storage and analysis. Future research infrastructures should support a range of methodological approaches including observation, experiments and modelling. They should also have flexibility to respond to new requirements, for example by adjusting the spatio-temporal design of measurements. When new methods are introduced, compatibility with important long-term data series must be ensured. Finally, indicators, tools, and transdisciplinary approaches to identify, quantify and value ecosystem services across spatial scales and domains need to be advanced.
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Affiliation(s)
- Martin Musche
- Helmholtz Centre for Environmental Research - UFZ, Department of Community Ecology, Theodor-Lieser-Str. 4, 06120, Halle, Germany.
| | - Mihai Adamescu
- University of Bucharest, Research Center for Systems Ecology and Sustainability, Spl. Independentei 91 - 95, 050095, Bucharest, Romania
| | - Per Angelstam
- School for Forest Management, Swedish University of Agricultural Sciences, PO Box 43, SE-739 21, Skinnskatteberg, Sweden
| | - Sven Bacher
- Department of Biology, University of Fribourg, Chemin du Musée 10, CH-1700, Fribourg, Switzerland
| | - Jaana Bäck
- Institute for Atmospheric and Earth System Research/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, P.O.Box 27, 00014, University of Helsinki, Finland
| | - Heather L Buss
- School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol, BS8 1RJ, United Kingdom
| | - Christopher Duffy
- Department of Civil & Environmental Engineering, The Pennsylvania State University, 212 Sackett, University Park, PA, 16802, USA
| | - Giovanna Flaim
- Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach 1, 38010, San Michele all'Adige, Italy
| | - Jerome Gaillardet
- CNRS and Institut de Physique du Globe de Paris, 1 rue Jussieu, 75238, Paris, cedex 05, France
| | - George V Giannakis
- School of Environmental Engineering, Technical University of Crete, University Campus, 73100, Chania, Greece
| | - Peter Haase
- Senckenberg Research Institute and Natural History Museum Frankfurt, Department of River Ecology and Conservation, Clamecystr. 12, 63571, Gelnhausen, Germany; University of Duisburg-Essen, Faculty of Biology, 45141, Essen, Germany
| | - Luboš Halada
- Institute of Landscape Ecology SAS, Branch Nitra, Akademicka 2, 949 10, Nitra, Slovakia
| | - W Daniel Kissling
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, P.O. Box 94248, 1090, GE Amsterdam, The Netherlands
| | - Lars Lundin
- Swedish University of Agricultural Sciences, P.O. Box 7050, SE-750 07, Uppsala, Sweden
| | - Giorgio Matteucci
- National Research Council of Italy, Institute for Agricultural and Forestry Systems in the Mediterranean (CNR-ISAFOM), Via Patacca, 85 I-80056, Ercolano, NA, Italy
| | - Henning Meesenburg
- Northwest German Forest Research Institute, Grätzelstr. 2, 37079, Göttingen, Germany
| | - Don Monteith
- Centre for Ecology & Hydrology, Lancaster, LA1 4AP, UK
| | - Nikolaos P Nikolaidis
- School of Environmental Engineering, Technical University of Crete, University Campus, 73100, Chania, Greece
| | - Tanja Pipan
- ZRC SAZU Karst Research Institute, Titov trg 2, SI-6230, Postojna, Slovenia; UNESCO Chair on Karst Education, University of Nova Gorica, Glavni trg 8, SI-5271, Vipava, Slovenia
| | - Petr Pyšek
- The Czech Academy of Sciences, Institute of Botany, Department of Invasion Ecology, CZ-252 43, Průhonice, Czech Republic; Department of Ecology, Faculty of Science, Charles University, Viničná 7, CZ-128 44, Prague, Czech Republic
| | - Ed C Rowe
- Centre for Ecology & Hydrology, Bangor, LL57 4NW, UK
| | - David B Roy
- Centre for Ecology & Hydrology, Wallingford, OX10 8EF, UK
| | - Andrew Sier
- Centre for Ecology & Hydrology, Lancaster, LA1 4AP, UK
| | - Ulrike Tappeiner
- Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020, Innsbruck, Austria; Eurac research, Viale Druso 1, 39100, Bozen/Bolzano, Italy
| | - Montserrat Vilà
- Estación Biológica de Doñana-Consejo Superior de Investigaciones Científicas (EBD-CSIC), Avda. Américo Vespucio 26, Isla de la Cartuja, 41005, Sevilla, Spain
| | - Tim White
- Earth and Environmental Systems Institute, 2217 EES Building, The Pennsylvania State University, University Park, PA, 16828, USA
| | - Martin Zobel
- Institute of Ecology and Earth Sciences, University of Tartu, Lai St.40, Tartu, 51005, Estonia
| | - Stefan Klotz
- Helmholtz Centre for Environmental Research - UFZ, Department of Community Ecology, Theodor-Lieser-Str. 4, 06120, Halle, Germany
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13
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D'Andrea E, Rezaie N, Battistelli A, Gavrichkova O, Kuhlmann I, Matteucci G, Moscatello S, Proietti S, Scartazza A, Trumbore S, Muhr J. Winter's bite: beech trees survive complete defoliation due to spring late-frost damage by mobilizing old C reserves. New Phytol 2019; 224:625-631. [PMID: 31282591 DOI: 10.1111/nph.16047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/30/2019] [Indexed: 05/12/2023]
Abstract
Late frost can destroy the photosynthetic apparatus of trees. We hypothesized that this can alter the normal cyclic dynamics of C-reserves in the wood. We measured soluble sugar concentrations and radiocarbon signatures (Δ14 C) of soluble nonstructural carbon (NSC) in woody tissues sampled from a Mediterranean beech forest that was completely defoliated by an exceptional late frost in 2016. We used the bomb radiocarbon approach to estimate the time elapsed since fixation of mobilized soluble sugars. During the leafless period after the frost event, soluble sugar concentrations declined sharply while Δ14 C of NSC increased. This can be explained by the lack of fresh assimilate supply and a mobilization of C from reserve pools. Soluble NSC became increasingly older during the leafless period, with a maximum average age of 5 yr from samples collected 27 d before canopy recovery. Following leaf re-growth, soluble sugar concentrations increased and Δ14 C of soluble NSC decreased, indicating the allocation of new assimilates to the stem soluble sugars pool. These data highlight that beech trees rapidly mobilize reserve C to survive strong source-sink imbalances, for example due to late frost, and show that NSC is a key trait for tree resilience under global change.
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Affiliation(s)
| | - Negar Rezaie
- CNR-ISAFOM, via Patacca 2, 80056, Ercolano, Italy
| | | | - Olga Gavrichkova
- CNR-IRET, via Marconi 2, 05010, Porano, Italy
- Agro-Technology Institute, Peoples Friendship University of Russia, 117198, Moscow, Russia
| | - Iris Kuhlmann
- Max-Planck-Institute for Biogeochemistry, Hans-Knöll-Str. 10, 07745, Jena, Germany
| | | | | | | | | | - Susan Trumbore
- Max-Planck-Institute for Biogeochemistry, Hans-Knöll-Str. 10, 07745, Jena, Germany
| | - Jan Muhr
- Max-Planck-Institute for Biogeochemistry, Hans-Knöll-Str. 10, 07745, Jena, Germany
- Bioclimatology, University of Göttingen, Büsgenweg 2, 37077, Göttingen, Germany
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14
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Collalti A, Thornton PE, Cescatti A, Rita A, Borghetti M, Nolè A, Trotta C, Ciais P, Matteucci G. The sensitivity of the forest carbon budget shifts across processes along with stand development and climate change. Ecol Appl 2019; 29:e01837. [PMID: 30549378 PMCID: PMC6849766 DOI: 10.1002/eap.1837] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 11/05/2018] [Accepted: 11/13/2018] [Indexed: 05/10/2023]
Abstract
The future trajectory of atmospheric CO2 concentration depends on the development of the terrestrial carbon sink, which in turn is influenced by forest dynamics under changing environmental conditions. An in-depth understanding of model sensitivities and uncertainties in non-steady-state conditions is necessary for reliable and robust projections of forest development and under scenarios of global warming and CO2 enrichment. Here, we systematically assessed if a biogeochemical process-based model (3D-CMCC-CNR), which embeds similarities with many other vegetation models, applied in simulating net primary productivity (NPP) and standing woody biomass (SWB), maintained a consistent sensitivity to its 55 input parameters through time, during forest ageing and structuring as well as under climate change scenarios. Overall, the model applied at three contrasting European forests showed low sensitivity to the majority of its parameters. Interestingly, model sensitivity to parameters varied through the course of >100 yr of simulations. In particular, the model showed a large responsiveness to the allometric parameters used for initialize forest carbon and nitrogen pools early in forest simulation (i.e., for NPP up to ~37%, 256 g C·m-2 ·yr-1 and for SWB up to ~90%, 65 Mg C/ha, when compared to standard simulation), with this sensitivity decreasing sharply during forest development. At medium to longer time scales, and under climate change scenarios, the model became increasingly more sensitive to additional and/or different parameters controlling biomass accumulation and autotrophic respiration (i.e., for NPP up to ~30%, 167 g C·m-2 ·yr-1 and for SWB up to ~24%, 64 Mg C/ha, when compared to standard simulation). Interestingly, model outputs were shown to be more sensitive to parameters and processes controlling stand development rather than to climate change (i.e., warming and changes in atmospheric CO2 concentration) itself although model sensitivities were generally higher under climate change scenarios. Our results suggest the need for sensitivity and uncertainty analyses that cover multiple temporal scales along forest developmental stages to better assess the potential of future forests to act as a global terrestrial carbon sink.
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Affiliation(s)
- Alessio Collalti
- National Research Council of ItalyInstitute for Agriculture and Forestry Systems in the Mediterranean (CNR‐ISAFOM)87036RendeCosenzaItaly
- Impacts on Agriculture, Forests and Ecosystem Services (CMCC‐IAFES) DivisionFoundation Euro‐Mediterranean Centre on Climate Change01100ViterboItaly
| | - Peter E. Thornton
- Environmental Sciences Division and Climate Change Science InstituteOak Ridge National LaboratoryOak RidgeTennessee37830USA
| | - Alessandro Cescatti
- Joint Research CentreDirectorate for Sustainable ResourcesEuropean CommissionIspraItaly
| | - Angelo Rita
- Scuola di Scienze Agrarie, Forestali, Alimentari e AmbientaliUniversità degli Studi della BasilicataViale dell'Ateneo Lucano 10PotenzaPotenza85100Italy
| | - Marco Borghetti
- Scuola di Scienze Agrarie, Forestali, Alimentari e AmbientaliUniversità degli Studi della BasilicataViale dell'Ateneo Lucano 10PotenzaPotenza85100Italy
| | - Angelo Nolè
- Scuola di Scienze Agrarie, Forestali, Alimentari e AmbientaliUniversità degli Studi della BasilicataViale dell'Ateneo Lucano 10PotenzaPotenza85100Italy
| | - Carlo Trotta
- Department for Innovation in Biological, Agro‐Food and Forest Systems (DIBAF)University of Tuscia01100ViterboItaly
| | - Philippe Ciais
- IPSL–LSCE CEA CNRS UVSQ UPSaclay Centre d'Etudes Orme des Merisiers91191Gif sur YvetteFrance
| | - Giorgio Matteucci
- National Research Council of ItalyInstitute for Agriculture and Forestry Systems in the Mediterranean (CNR‐ISAFOM)87036RendeCosenzaItaly
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15
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Collalti A, Trotta C, Keenan TF, Ibrom A, Bond‐Lamberty B, Grote R, Vicca S, Reyer CPO, Migliavacca M, Veroustraete F, Anav A, Campioli M, Scoccimarro E, Šigut L, Grieco E, Cescatti A, Matteucci G. Thinning Can Reduce Losses in Carbon Use Efficiency and Carbon Stocks in Managed Forests Under Warmer Climate. J Adv Model Earth Syst 2018; 10:2427-2452. [PMID: 31007835 PMCID: PMC6472666 DOI: 10.1029/2018ms001275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 09/10/2018] [Accepted: 09/16/2018] [Indexed: 05/10/2023]
Abstract
Forest carbon use efficiency (CUE, the ratio of net to gross primary productivity) represents the fraction of photosynthesis that is not used for plant respiration. Although important, it is often neglected in climate change impact analyses. Here we assess the potential impact of thinning on projected carbon cycle dynamics and implications for forest CUE and its components (i.e., gross and net primary productivity and plant respiration), as well as on forest biomass production. Using a detailed process-based forest ecosystem model forced by climate outputs of five Earth System Models under four representative climate scenarios, we investigate the sensitivity of the projected future changes in the autotrophic carbon budget of three representative European forests. We focus on changes in CUE and carbon stocks as a result of warming, rising atmospheric CO2 concentration, and forest thinning. Results show that autotrophic carbon sequestration decreases with forest development, and the decrease is faster with warming and in unthinned forests. This suggests that the combined impacts of climate change and changing CO2 concentrations lead the forests to grow faster, mature earlier, and also die younger. In addition, we show that under future climate conditions, forest thinning could mitigate the decrease in CUE, increase carbon allocation into more recalcitrant woody pools, and reduce physiological-climate-induced mortality risks. Altogether, our results show that thinning can improve the efficacy of forest-based mitigation strategies and should be carefully considered within a portfolio of mitigation options.
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Affiliation(s)
- Alessio Collalti
- Impacts on Agriculture, Forests and Ecosystem Services DivisionFoundation Euro‐Mediterranean Center on Climate Change (CMCC)ViterboItaly
- National Research Council of ItalyInstitute for Agriculture and Forestry Systems in the Mediterranean (CNR‐ISAFOM)RendeItaly
| | - Carlo Trotta
- Department for Innovation in Biological, Agro‐food and Forest SystemsUniversity of TusciaViterboItaly
| | - Trevor F. Keenan
- Earth Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
- Department of Environmental Science Policy and ManagementUniversity of CaliforniaBerkeleyCAUSA
| | - Andreas Ibrom
- Department Environmental EngineeringTechnical University of Denmark (DTU)LyngbyDenmark
| | - Ben Bond‐Lamberty
- Pacific Northwest National LaboratoryJoint Global Change Research Institute at the University of Maryland‐College ParkCollege ParkMDUSA
| | - Ruediger Grote
- Institute of Meteorology and Climate Research (IMK‐IFU)Karlsruhe Institute of TechnologyKarlsruheGermany
| | - Sara Vicca
- Centre of Excellence PLECO (Pant and Vegetation Ecology), Department of BiologyUniversity of AntwerpAntwerpBelgium
| | | | | | | | - Alessandro Anav
- College of Engineering, Mathematics and Physical SciencesUniversity of ExeterExeterUK
| | - Matteo Campioli
- Department Environmental EngineeringTechnical University of Denmark (DTU)LyngbyDenmark
| | - Enrico Scoccimarro
- Climate Simulation and Prediction DivisionFoundation Euro‐Mediterranean Center on Climate Change (CMCC)BolognaItaly
| | - Ladislav Šigut
- Department of Matter and Energy FluxesGlobal Change Research Institute CASBrnoCzech Republic
| | - Elisa Grieco
- Impacts on Agriculture, Forests and Ecosystem Services DivisionFoundation Euro‐Mediterranean Center on Climate Change (CMCC)ViterboItaly
| | - Alessandro Cescatti
- Directorate for Sustainable ResourcesEuropean Commission, Joint Research CentreIspraItaly
| | - Giorgio Matteucci
- National Research Council of ItalyInstitute for Agriculture and Forestry Systems in the Mediterranean (CNR‐ISAFOM)RendeItaly
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16
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Rezaie N, D'Andrea E, Bräuning A, Matteucci G, Bombi P, Lauteri M. Do atmospheric CO2 concentration increase, climate and forest management affect iWUE of common beech? Evidences from carbon isotope analyses in tree rings. Tree Physiol 2018; 38:1110-1126. [PMID: 29579292 DOI: 10.1093/treephys/tpy025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
Beech is one of the most important forest tree species in Europe, hence possible adverse factors affecting its physiology and productivity can have strong ecological and economic impacts. In this context, four beech forests along a latitudinal gradient from southern Apennines to middle European lowlands were selected for chronological determinations of carbon isotope composition (δ13C) in tree-ring cellulose. The main objectives of this study were to assess (i) the effect of climate on the carbon signature of tree-ring cellulose (δ13C); (ii) the physiological response to recent CO2 concentration increment and to climatic variation; and (iii) the relationship between intrinsic water-use efficiency (iWUE, here the average long-term ratio of net photosynthesis to stomatal conductance) and growth of trees in different sites since 1950. Our results demonstrated that site climatic conditions peculiarly affect δ13C. In northern sites, a climatic control of summer precipitation and temperature on stomatal conductance was demonstrated by their opposite correlations with δ13C, negative and positive, respectively. Furthermore, an 'earliness effect' was suggested by a significant relationship between spring temperature and δ13C in the coldest sites and by a positive one between winter temperature and δ13C in the warmest ones. In all the study sites, during the maturity phase, a positive correlation between the increment of CO2 and iWUE was observed, due to an active response of trees to CO2 increment. This increment of CO2 was the main driver of the long term increasing trend of iWUE, resulting by an active response of trees to CO2 fertilization. Moreover, precipitation mostly influences positively and negatively the inter-annual variations of iWUE of the southernmost and northernmost sites, respectively. Overall, we observed a mean increment of 40% of iWUE. Moreover, the sensitivity of iWUE to the increase of CO2 was different between the northernmost and southernmost sites. Increasing iWUE was correlated to growth in the two sites during the release phase and we hypothesize a positive effect of silvicultural treatments.
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Affiliation(s)
- Negar Rezaie
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Via Salaria km 29,300, Monterotondo Scalo (RM), Italy
| | - Ettore D'Andrea
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Via Salaria km 29,300, Monterotondo Scalo (RM), Italy
| | - Achim Bräuning
- Institute of Geography, Friedrich Alexander University Erlangen Nürnberg, Erlangen, Germany
| | - Giorgio Matteucci
- Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (ISAFoM), Consiglio Nazionale delle Ricerche (CNR), Via Patacca, 85 Ercolano (NA) Italy
| | - Pierluigi Bombi
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Via Salaria km 29,300, Monterotondo Scalo (RM), Italy
| | - Marco Lauteri
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Viale G. Marconi 2, Porano (TR), Italy
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17
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Rogora M, Frate L, Carranza ML, Freppaz M, Stanisci A, Bertani I, Bottarin R, Brambilla A, Canullo R, Carbognani M, Cerrato C, Chelli S, Cremonese E, Cutini M, Di Musciano M, Erschbamer B, Godone D, Iocchi M, Isabellon M, Magnani A, Mazzola L, Morra di Cella U, Pauli H, Petey M, Petriccione B, Porro F, Psenner R, Rossetti G, Scotti A, Sommaruga R, Tappeiner U, Theurillat JP, Tomaselli M, Viglietti D, Viterbi R, Vittoz P, Winkler M, Matteucci G. Assessment of climate change effects on mountain ecosystems through a cross-site analysis in the Alps and Apennines. Sci Total Environ 2018; 624:1429-1442. [PMID: 29929254 DOI: 10.1016/j.scitotenv.2017.12.155] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 06/08/2023]
Abstract
Mountain ecosystems are sensitive and reliable indicators of climate change. Long-term studies may be extremely useful in assessing the responses of high-elevation ecosystems to climate change and other anthropogenic drivers from a broad ecological perspective. Mountain research sites within the LTER (Long-Term Ecological Research) network are representative of various types of ecosystems and span a wide bioclimatic and elevational range. Here, we present a synthesis and a review of the main results from ecological studies in mountain ecosystems at 20 LTER sites in Italy, Switzerland and Austria covering in most cases more than two decades of observations. We analyzed a set of key climate parameters, such as temperature and snow cover duration, in relation to vascular plant species composition, plant traits, abundance patterns, pedoclimate, nutrient dynamics in soils and water, phenology and composition of freshwater biota. The overall results highlight the rapid response of mountain ecosystems to climate change, with site-specific characteristics and rates. As temperatures increased, vegetation cover in alpine and subalpine summits increased as well. Years with limited snow cover duration caused an increase in soil temperature and microbial biomass during the growing season. Effects on freshwater ecosystems were also observed, in terms of increases in solutes, decreases in nitrates and changes in plankton phenology and benthos communities. This work highlights the importance of comparing and integrating long-term ecological data collected in different ecosystems for a more comprehensive overview of the ecological effects of climate change. Nevertheless, there is a need for (i) adopting co-located monitoring site networks to improve our ability to obtain sound results from cross-site analysis, (ii) carrying out further studies, in particular short-term analyses with fine spatial and temporal resolutions to improve our understanding of responses to extreme events, and (iii) increasing comparability and standardizing protocols across networks to distinguish local patterns from global patterns.
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Affiliation(s)
- M Rogora
- CNR Institute of Ecosystem Study, Verbania Pallanza, Italy.
| | - L Frate
- DIBT, Envix-Lab, University of Molise, Pesche (IS), Italy
| | - M L Carranza
- DIBT, Envix-Lab, University of Molise, Pesche (IS), Italy
| | - M Freppaz
- DISAFA, NatRisk, University of Turin, Grugliasco (TO), Italy
| | - A Stanisci
- DIBT, Envix-Lab, University of Molise, Pesche (IS), Italy
| | - I Bertani
- Graham Sustainability Institute, University of Michigan, 625 E. Liberty St., Ann Arbor, MI 48104, USA
| | - R Bottarin
- Eurac Research, Institute for Alpine Environment, Bolzano (BZ), Italy
| | - A Brambilla
- Alpine Wildlife Research Centre, Gran Paradiso National Park, Degioz (AO) 11, Valsavarenche, Italy; Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - R Canullo
- School of Biosciences and Veterinary Medicine, Plant Diversity and Ecosystems Management Unit, University of Camerino (MC), Italy
| | - M Carbognani
- Department of Chemistry, Life Sciences and Environmental Sustainability University of Parma, Parma, Italy
| | - C Cerrato
- Alpine Wildlife Research Centre, Gran Paradiso National Park, Degioz (AO) 11, Valsavarenche, Italy
| | - S Chelli
- School of Biosciences and Veterinary Medicine, Plant Diversity and Ecosystems Management Unit, University of Camerino (MC), Italy
| | - E Cremonese
- Environmental Protection Agency of Aosta Valley, ARPA VdA, Climate Change Unit, Aosta, Italy
| | - M Cutini
- Department of Science, University of Roma Tre, Viale G. Marconi, 446-00146 Rome, Italy
| | - M Di Musciano
- Department of Life Health & Environmental Sciences, University of L'Aquila Via Vetoio, 67100 L'Aquila, Italy
| | - B Erschbamer
- University of Innsbruck, Institute of Botany, Sternwartestr 15, A-6020 Insbruck, Austria
| | - D Godone
- CNR IRPI Geohazard Monitoring Group, Strada delle Cacce, 73, 10135 Torino, Italy
| | - M Iocchi
- Department of Science, University of Roma Tre, Viale G. Marconi, 446-00146 Rome, Italy
| | - M Isabellon
- DISAFA, University of Turin, Grugliasco (TO), Italy; Environmental Protection Agency of Aosta Valley, ARPA VdA, Climate Change Unit, Aosta, Italy
| | - A Magnani
- DISAFA, University of Turin, Grugliasco (TO), Italy
| | - L Mazzola
- Sciences and Technologies for Environment and Resources, University of Parma, Italy
| | - U Morra di Cella
- Environmental Protection Agency of Aosta Valley, ARPA VdA, Climate Change Unit, Aosta, Italy
| | - H Pauli
- GLORIA Coordination, Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences & Center for Global Change and Sustainability, University of Natural Resources and Life Sciences Vienna (BOKU), Silbergasse 30/3, 1190 Vienna, Austria
| | - M Petey
- Environmental Protection Agency of Aosta Valley, ARPA VdA, Climate Change Unit, Aosta, Italy
| | - B Petriccione
- Carabinieri, Biodiversity and Park Protection Dpt., Roma, Italy
| | - F Porro
- Department of Earth and Environmental Sciences, University of Pavia, via Ferrata 1, 27100 Pavia, Italy
| | - R Psenner
- Eurac Research, Institute for Alpine Environment, Bolzano (BZ), Italy; Lake and Glacier Research Group, Institute of Ecology, University of Innsbruck, Technikerstr, 25, 6020 Innsbruck, Austria
| | - G Rossetti
- Department of Environmental Sciences, University of Parma, Parco Area delle Scienze, 33/A, 43100 Parma, Italy
| | - A Scotti
- Eurac Research, Institute for Alpine Environment, Bolzano (BZ), Italy
| | - R Sommaruga
- Lake and Glacier Research Group, Institute of Ecology, University of Innsbruck, Technikerstr, 25, 6020 Innsbruck, Austria
| | - U Tappeiner
- Eurac Research, Institute for Alpine Environment, Bolzano (BZ), Italy
| | - J-P Theurillat
- Centre Alpien de Phytogéographie, Fondation J.-M. Aubert, 1938 Champex-Lac, Switzerland, & Section of Biology, University of Geneva, 1292 Chambésy, Switzerland
| | - M Tomaselli
- Department of Chemistry, Life Sciences and Environmental Sustainability University of Parma, Parma, Italy
| | - D Viglietti
- DISAFA, NatRisk, University of Turin, Grugliasco (TO), Italy
| | - R Viterbi
- Alpine Wildlife Research Centre, Gran Paradiso National Park, Degioz (AO) 11, Valsavarenche, Italy
| | - P Vittoz
- Institute of Earth Surface Dynamics, University of Lausanne, Geopolis, 1015 Lausanne, Switzerland
| | - M Winkler
- GLORIA Coordination, Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences & Center for Global Change and Sustainability, University of Natural Resources and Life Sciences Vienna (BOKU), Silbergasse 30/3, 1190 Vienna, Austria
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18
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Nestola E, Scartazza A, Di Baccio D, Castagna A, Ranieri A, Cammarano M, Mazzenga F, Matteucci G, Calfapietra C. Are optical indices good proxies of seasonal changes in carbon fluxes and stress-related physiological status in a beech forest? Sci Total Environ 2018; 612:1030-1041. [PMID: 28892844 DOI: 10.1016/j.scitotenv.2017.08.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/15/2017] [Accepted: 08/15/2017] [Indexed: 06/07/2023]
Abstract
This study investigates the functionality of a Mediterranean-mountain beech forest in Central Italy using simultaneous determinations of optical measurements, carbon (C) fluxes, leaf eco-physiological and biochemical traits during two growing seasons (2014-2015). Meteorological variables showed significant differences between the two growing seasons, highlighting a heat stress coupled with a reduced water availability in mid-summer 2015. As a result, a different C sink capacity of the forest was observed between the two years of study, due to the differences in stressful conditions and the related plant physiological status. Spectral indices related to vegetation (VIs, classified in structural, chlorophyll and carotenoid indices) were computed at top canopy level and used to track CO2 fluxes and physiological changes. Optical indices related to structure (EVI 2, RDVI, DVI and MCARI 1) were found to better track Net Ecosystem Exchange (NEE) variations for 2014, while indices related to chlorophylls (SR red edge, CL red edge, MTCI and DR) provided better results for 2015. This suggests that when environmental conditions are not limiting for forest sink capacity, structural parameters are more strictly connected to C uptake, while under stress conditions indices related to functional features (e.g., chlorophyll content) become more relevant. Chlorophyll indices calculated with red edge bands (SR red edge, NDVI red edge, DR, CL red edge) resulted to be highly correlated with leaf nitrogen content (R2>0.70), while weaker, although significant, correlations were found with chlorophyll content. Carotenoid indices (PRI and PSRI) were strongly correlated with both chlorophylls and carotenoids content, suggesting that these indices are good proxies of the shifting pigment composition related to changes in soil moisture, heat stress and senescence. Our work suggests the importance of integrating different methods as a successful approach to understand how changing climatic conditions in the Mediterranean mountain region will impact on forest conditions and functionality.
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Affiliation(s)
- E Nestola
- Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Marconi 2, 05010 Porano, TR, Italy; Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via S. Camillo de Lellis snc, 01100 Viterbo, Italy.
| | - A Scartazza
- Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Marconi 2, 05010 Porano, TR, Italy; Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Salaria km 29,300, 00016, Monterotondo Scalo, Roma, RM, Italy.
| | - D Di Baccio
- Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Salaria km 29,300, 00016, Monterotondo Scalo, Roma, RM, Italy
| | - A Castagna
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - A Ranieri
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
| | - M Cammarano
- Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Salaria km 29,300, 00016, Monterotondo Scalo, Roma, RM, Italy
| | - F Mazzenga
- Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via S. Camillo de Lellis snc, 01100 Viterbo, Italy; Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Salaria km 29,300, 00016, Monterotondo Scalo, Roma, RM, Italy
| | - G Matteucci
- Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR), Via Patacca, 85 I-80056 Ercolano, NA, Italy
| | - C Calfapietra
- Institute of Agroenvironmental and Forest Biology, National Research Council of Italy (CNR), Via Marconi 2, 05010 Porano, TR, Italy; Czechglobe, Global Change Research Institute, Academy of Sciences of the Czech Republic, Brno, Czech Republic
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19
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Lin H, Chen Y, Song Q, Fu P, Cleverly J, Magliulo V, Law BE, Gough CM, Hörtnagl L, Di Gennaro F, Matteucci G, Montagnani L, Duce P, Shao C, Kato T, Bonal D, Paul-Limoges E, Beringer J, Grace J, Fan Z. Quantifying deforestation and forest degradation with thermal response. Sci Total Environ 2017; 607-608:1286-1292. [PMID: 28732406 DOI: 10.1016/j.scitotenv.2017.07.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/13/2017] [Accepted: 07/07/2017] [Indexed: 06/07/2023]
Abstract
Deforestation and forest degradation cause the deterioration of resources and ecosystem services. However, there are still no operational indicators to measure forest status, especially for forest degradation. In the present study, we analysed the thermal response number (TRN, calculated by daily total net radiation divided by daily temperature range) of 163 sites including mature forest, disturbed forest, planted forest, shrubland, grassland, savanna vegetation and cropland. TRN generally increased with latitude, however the regression of TRN against latitude differed among vegetation types. Mature forests are superior as thermal buffers, and had significantly higher TRN than disturbed and planted forests. There was a clear boundary between TRN of forest and non-forest vegetation (i.e. grassland and savanna) with the exception of shrubland, whose TRN overlapped with that of forest vegetation. We propose to use the TRN of local mature forest as the optimal TRN (TRNopt). A forest with lower than 75% of TRNopt was identified as subjected to significant disturbance, and forests with 66% of TRNopt was the threshold for deforestation within the absolute latitude from 30° to 55°. Our results emphasized the irreplaceable thermal buffer capacity of mature forest. TRN can be used for early warning of deforestation and degradation risk. It is therefore a valuable tool in the effort to protect forests and prevent deforestation.
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Affiliation(s)
- Hua Lin
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China.
| | - Yajun Chen
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Qinghai Song
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Peili Fu
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - James Cleverly
- Terrestrial Ecohydrology Research Group, School of Life Sciences, University of Technology Sydney, Broadway, New South Wales 2007, Australia
| | | | - Beverly E Law
- Forest Ecosystems & Society, Oregon State University, Corvallis, OR 97330, USA
| | - Christopher M Gough
- Virginia Commonwealth University, Department of Biology, 1000 W. Cary Street, Richmond, VA 23284-2012, USA
| | - Lukas Hörtnagl
- ETH Zurich, Institute of Agricultural Sciences, Zürich 8092, Switzerland
| | | | | | - Leonardo Montagnani
- Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy; Forest Services, Autonomous Province of Bolzano, Bolzano, Italy
| | | | - Changliang Shao
- Center for Global Change & Earth Observations (CGCEO), Michigan State University, East Lansing, MI 48823, USA
| | - Tomomichi Kato
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | | | | | - Jason Beringer
- School of Earth and Environment (SEE), The University of Western Australia, Crawley, WA 6009, Australia
| | - John Grace
- School of Geosciences, the University of Edingburgh, Edinburgh EH9 3FF, The United Kingdom
| | - Zexin Fan
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
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20
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Bombi P, D’Andrea E, Rezaie N, Cammarano M, Matteucci G. Which climate change path are we following? Bad news from Scots pine. PLoS One 2017; 12:e0189468. [PMID: 29252985 PMCID: PMC5734685 DOI: 10.1371/journal.pone.0189468] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 11/08/2017] [Indexed: 11/19/2022] Open
Abstract
Current expectations on future climate derive from coordinated experiments, which compile many climate models for sampling the entire uncertainty related to emission scenarios, initial conditions, and modelling process. Quantifying this uncertainty is important for taking decisions that are robust under a wide range of possible future conditions. Nevertheless, if uncertainty is too large, it can prevent from planning specific and effective measures. For this reason, reducing the spectrum of the possible scenarios to a small number of one or a few models that actually represent the climate pathway influencing natural ecosystems would substantially increase our planning capacity. Here we adopt a multidisciplinary approach based on the comparison of observed and expected spatial patterns of response to climate change in order to identify which specific models, among those included in the CMIP5, catch the real climate variation driving the response of natural ecosystems. We used dendrochronological analyses for determining the geographic pattern of recent growth trends for three European species of trees. At the same time, we modelled the climatic niche for the same species and forecasted the suitability variation expected across Europe under each different GCM. Finally, we estimated how well each GCM explains the real response of ecosystems, by comparing the expected variation with the observed growth trends. Doing this, we identified four climatic models that are coherent with the observed trends. These models are close to the highest range limit of the climatic variations expected by the ensemble of the CMIP5 models, suggesting that current predictions of climate change impacts on ecosystems could be underestimated.
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Affiliation(s)
- Pierluigi Bombi
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy (CNR-IBAF), Monterotondo, Italy
- LifeWatch-ITA, Mediterranean Thematic Center, National Research Council of Italy, Rome, Italy
| | - Ettore D’Andrea
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy (CNR-IBAF), Monterotondo, Italy
| | - Negar Rezaie
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy (CNR-IBAF), Monterotondo, Italy
| | - Mario Cammarano
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy (CNR-IBAF), Monterotondo, Italy
| | - Giorgio Matteucci
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy (CNR-IBAF), Monterotondo, Italy
- Institute for Agricultural and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM), Ercolano, Italy
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21
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Fernández-Martínez M, Vicca S, Janssens IA, Ciais P, Obersteiner M, Bartrons M, Sardans J, Verger A, Canadell JG, Chevallier F, Wang X, Bernhofer C, Curtis PS, Gianelle D, Grünwald T, Heinesch B, Ibrom A, Knohl A, Laurila T, Law BE, Limousin JM, Longdoz B, Loustau D, Mammarella I, Matteucci G, Monson RK, Montagnani L, Moors EJ, Munger JW, Papale D, Piao SL, Peñuelas J. Atmospheric deposition, CO 2, and change in the land carbon sink. Sci Rep 2017; 7:9632. [PMID: 28851977 PMCID: PMC5574890 DOI: 10.1038/s41598-017-08755-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 07/18/2017] [Indexed: 11/20/2022] Open
Abstract
Concentrations of atmospheric carbon dioxide (CO2) have continued to increase whereas atmospheric deposition of sulphur and nitrogen has declined in Europe and the USA during recent decades. Using time series of flux observations from 23 forests distributed throughout Europe and the USA, and generalised mixed models, we found that forest-level net ecosystem production and gross primary production have increased by 1% annually from 1995 to 2011. Statistical models indicated that increasing atmospheric CO2 was the most important factor driving the increasing strength of carbon sinks in these forests. We also found that the reduction of sulphur deposition in Europe and the USA lead to higher recovery in ecosystem respiration than in gross primary production, thus limiting the increase of carbon sequestration. By contrast, trends in climate and nitrogen deposition did not significantly contribute to changing carbon fluxes during the studied period. Our findings support the hypothesis of a general CO2-fertilization effect on vegetation growth and suggest that, so far unknown, sulphur deposition plays a significant role in the carbon balance of forests in industrialized regions. Our results show the need to include the effects of changing atmospheric composition, beyond CO2, to assess future dynamics of carbon-climate feedbacks not currently considered in earth system/climate modelling.
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Affiliation(s)
- M Fernández-Martínez
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain. .,CREAF, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain.
| | - S Vicca
- Centre of Excellence PLECO (Plant and Vegetation Ecology), Department of Biology, University of Antwerp, 2610, Wilrijk, Belgium
| | - I A Janssens
- Centre of Excellence PLECO (Plant and Vegetation Ecology), Department of Biology, University of Antwerp, 2610, Wilrijk, Belgium
| | - P Ciais
- Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQ, 91191, Gif-sur-Yvette, France
| | - M Obersteiner
- International Institute for Applied Systems Analysis, Schlossplatz 1, 2361, Laxenburg, Austria
| | - M Bartrons
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain.,CREAF, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain
| | - J Sardans
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain.,CREAF, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain
| | - A Verger
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain.,CREAF, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain
| | - J G Canadell
- Global Carbon Project, CSIRO Oceans and Atmosphere, Canberra, ACT 2601, Australia
| | - F Chevallier
- Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQ, 91191, Gif-sur-Yvette, France
| | - X Wang
- Sino-French Institute of Earth System Sciences, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.,Laboratoire de Météorologie Dynamique, Université Pierre et Marie Curie, Paris, 75005, France
| | - C Bernhofer
- TU Dresden, Institut für Hydrologie und Meteorologie, LS Meteorologie, Pienner Str. 23, 01737, Tharandt, Germany
| | - P S Curtis
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Columbus, Ohio, 43210, USA
| | - D Gianelle
- Foxlab Joint CNR-FEM Initiative, Via E. Mach 1, 38010 San Michele all'Adige, Italy.,Department of Sustainable Agro-Ecosystems and Bioresources, Research and Innovation Center, Fondazione Edmund Mach, 38010 S, Michele all' Adige Trento, Italy
| | - T Grünwald
- TU Dresden, Institut für Hydrologie und Meteorologie, LS Meteorologie, Pienner Str. 23, 01737, Tharandt, Germany
| | - B Heinesch
- Department of Biosystem Engineering (BioSE), Gembloux Agro-Bio Tech, University of Liege, Liège, 4000, Belgium
| | - A Ibrom
- Department of Environmental Engineering, Technical University of Denmark (DTU), Lyngby, Denmark
| | - A Knohl
- Bioclimatology, Faculty of Forest Sciences and Forest Ecology, University of Göttingen, Büsgenweg 2, 37077, Göttingen, Germany
| | - T Laurila
- Finnish Meteorological Institute, Erik Palménin aukio 1, FI-00560, Helsinki, Finland
| | - B E Law
- Department of Forest Ecosystems & Society, Oregon State University, Corvallis, OR, 97331, USA
| | - J M Limousin
- Centre d'Ecologie Fonctionelle et Evolutive CEFE, UMR 5175, CNRS, Université de Montpellier, Université Paul-Valery Montpellier, EPHE, 1919 route de Mende, 34293, Montpellier 5, France
| | - B Longdoz
- UMR Ecologie et Ecophysiologie Forestières, UMR1137, Inra-Université de Lorraine, Champenoux (F-54280)-Vandoeuvre Les Nancy (F-54500), France
| | - D Loustau
- INRA, UMR 1391 ISPA, Centre de Bordeaux Aquitaine, Villenave-d'Ornon, France
| | - I Mammarella
- Department of Physics, University of Helsinki, P.O. Box 48, FIN-00014, Helsinki, Finland
| | - G Matteucci
- IBAF - National Research Council of Italy, I-00015, Monterotondo (RM), Italy.,ISAFOM - National Research Council of Italy, I-87036, Rende (CS), Italy
| | - R K Monson
- School of Natural Resources and the Environment and Laboratory of Tree Ring Research, University of Arizona, Tucson, Arizona, USA
| | - L Montagnani
- Forest Services, Autonomous Province of Bolzano, Via Brennero 6, 39100, Bolzano, Italy.,Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| | - E J Moors
- Alterra Wageningen UR, PO Box 47, 6700 AA, Wageningen, Netherlands.,VU University Amsterdam, Boelelaan 1085, Amsterdam, Netherlands
| | - J W Munger
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - D Papale
- DIBAF, University of Tuscia, 01100, Viterbo, Italy
| | - S L Piao
- Sino-French Institute of Earth System Sciences, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.,Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100085, China
| | - J Peñuelas
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain.,CREAF, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain
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22
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Firbank LG, Bertora C, Blankman D, Delle Vedove G, Frenzel M, Grignani C, Groner E, Kertész M, Krab EJ, Matteucci G, Menta C, Mueller CW, Stadler J, Kunin WE. Towards the co-ordination of terrestrial ecosystem protocols across European research infrastructures. Ecol Evol 2017; 7:3967-3975. [PMID: 28616191 PMCID: PMC5468142 DOI: 10.1002/ece3.2997] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 03/09/2017] [Accepted: 03/16/2017] [Indexed: 11/06/2022] Open
Abstract
The study of ecosystem processes over multiple scales of space and time is often best achieved using comparable data from multiple sites. Yet, long-term ecological observatories have often developed their own data collection protocols. Here, we address this problem by proposing a set of ecological protocols suitable for widespread adoption by the ecological community. Scientists from the European ecological research community prioritized terrestrial ecosystem parameters that could benefit from a more consistent approach to data collection within the resources available at most long-term ecological observatories. Parameters for which standard methods are in widespread use, or for which methods are evolving rapidly, were not selected. Protocols were developed by domain experts, building on existing methods where possible, and refined through a process of field testing and training. They address above-ground plant biomass; decomposition; land use and management; leaf area index; soil mesofaunal diversity; soil C and N stocks, and greenhouse gas emissions from soils. These complement existing methods to provide a complete assessment of ecological integrity. These protocols offer integrated approaches to ecological data collection that are low cost and are starting to be used across the European Long Term Ecological Research community.
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Affiliation(s)
| | - Chiara Bertora
- Department of Agriculture, Forest and Food Science Università degli Studi di Torino Torino Italy
| | - David Blankman
- Information Management, Israel LTERBen-Gurion University of the Negev Beer-Sheva Israel
| | - Gemini Delle Vedove
- Department of Agricultural, Food, Environmental and Animal Sciences University of Udine Udine Italy
| | - Mark Frenzel
- Department of Community Ecology Helmholtz Centre for Environmental Research - UFZ Halle/Saale Germany
| | - Carlo Grignani
- Department of Agriculture, Forest and Food Science Università degli Studi di Torino Torino Italy
| | - Elli Groner
- Dead Sea and Arava Science Center Mitzpe Ramon Israel
| | - Miklós Kertész
- MTA Centre for Ecological Research Institute of Ecology and Botany Vácrátót Hungary
| | - Eveline J Krab
- Department of Ecological Science VU University Amsterdam Amsterdam The Netherlands.,Present address: Climate Impacts Research Centre Abisko Naturvetenskapliga Station Ecology and Environmental Sciences Umeå University Abisko Sweden
| | - Giorgio Matteucci
- CNR ISAFOM National Research Council of Italy Institute for Agriculture and Forestry Systems in the Mediterranean Ercolano NA Italy
| | - Christina Menta
- Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma Italy
| | - Carsten W Mueller
- Lehrstuhl für Bodenkunde Research Department Ecology and Ecosystem Management Technische Universitaet Muenchen Munich Germany
| | - Jutta Stadler
- Department of Community Ecology Helmholtz Centre for Environmental Research - UFZ Halle/Saale Germany
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23
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Matteucci G, Reverberi P. Drug innovation, price controls, and parallel trade. Int J Health Econ Manag 2016; 17:10.1007/s10754-016-9205-5. [PMID: 28004206 DOI: 10.1007/s10754-016-9205-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 12/03/2016] [Indexed: 06/06/2023]
Abstract
We study the long-run welfare effects of parallel trade (PT) in pharmaceuticals. We develop a two-country model of PT with endogenous quality, where the pharmaceutical firm negotiates the price of the drug with the government in the foreign country. We show that, even though the foreign government does not consider global R&D costs, (the threat of) PT improves the quality of the drug as long as the foreign consumers' valuation of quality is high enough. We find that the firm's short-run profit may be higher when PT is allowed. Nonetheless, this is neither necessary nor sufficient for improving drug quality in the long run. We also show that improving drug quality is a sufficient condition for PT to increase global welfare. Finally, we show that, when PT is allowed, drug quality may be higher with than without price controls.
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Affiliation(s)
- Giorgio Matteucci
- Dipartimento di Ingegneria informatica automatica e gestionale Antonio Ruberti, Sapienza - Università di Roma, Via Ariosto, 25, 00185, Rome, Italy
| | - Pierfrancesco Reverberi
- Dipartimento di Ingegneria informatica automatica e gestionale Antonio Ruberti, Sapienza - Università di Roma, Via Ariosto, 25, 00185, Rome, Italy.
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24
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Basile M, Valerio F, Balestrieri R, Posillico M, Bucci R, Altea T, De Cinti B, Matteucci G. Patchiness of forest landscape can predict species distribution better than abundance: the case of a forest-dwelling passerine, the short-toed treecreeper, in central Italy. PeerJ 2016; 4:e2398. [PMID: 27651990 PMCID: PMC5018664 DOI: 10.7717/peerj.2398] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/02/2016] [Indexed: 11/25/2022] Open
Abstract
Environmental heterogeneity affects not only the distribution of a species but also its local abundance. High heterogeneity due to habitat alteration and fragmentation can influence the realized niche of a species, lowering habitat suitability as well as reducing local abundance. We investigate whether a relationship exists between habitat suitability and abundance and whether both are affected by fragmentation. Our aim was to assess the predictive power of such a relationship to derive advice for environmental management. As a model species we used a forest specialist, the short-toed treecreeper (Family: Certhiidae; Certhia brachydactyla Brehm, 1820), and sampled it in central Italy. Species distribution was modelled as a function of forest structure, productivity and fragmentation, while abundance was directly estimated in two central Italian forest stands. Different algorithms were implemented to model species distribution, employing 170 occurrence points provided mostly by the MITO2000 database: an artificial neural network, classification tree analysis, flexible discriminant analysis, generalized boosting models, generalized linear models, multivariate additive regression splines, maximum entropy and random forests. Abundance was estimated also considering detectability, through N-mixture models. Differences between forest stands in both abundance and habitat suitability were assessed as well as the existence of a relationship. Simpler algorithms resulted in higher goodness of fit than complex ones. Fragmentation was highly influential in determining potential distribution. Local abundance and habitat suitability differed significantly between the two forest stands, which were also significantly different in the degree of fragmentation. Regression showed that suitability has a weak significant effect in explaining increasing value of abundance. In particular, local abundances varied both at low and high suitability values. The study lends support to the concept that the degree of fragmentation can contribute to alter not only the suitability of an area for a species, but also its abundance. Even if the relationship between suitability and abundance can be used as an early warning of habitat deterioration, its weak predictive power needs further research. However, we define relationships between a species and some landscape features (i.e., fragmentation, extensive rejuvenation of forests and tree plantations) which could be easily controlled by appropriate forest management planning to enhance environmental suitability, at least in an area possessing high conservation and biodiversity values.
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Affiliation(s)
- Marco Basile
- Istituto di Biologia Agroambientale e Forestale, Consiglio Nazionale delle Ricerche, Monterotondo Scalo, Italy
- Coordinamento MItO2000, Parma, Italy
- Chair of Wildlife Ecology and Management, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Francesco Valerio
- CIBIO/InBIO-UE—Research Center in Biodiversity and Genetic Resources, Pole of Évora Applied Population and Community Ecology Laboratory, University of Évora UBC—Conservation Biology Lab, Department of Biology, Évora, Portugal
| | - Rosario Balestrieri
- Istituto di Biologia Agroambientale e Forestale, Consiglio Nazionale delle Ricerche, Monterotondo Scalo, Italy
- Coordinamento MItO2000, Parma, Italy
| | - Mario Posillico
- Istituto di Biologia Agroambientale e Forestale, Consiglio Nazionale delle Ricerche, Monterotondo Scalo, Italy
- Ufficio Territoriale Biodiversità di Castel di Sangro-Centro Ricerche Ambienti Montani, Corpo Forestale dello Stato, Castel di Sangro, Italy
| | - Rodolfo Bucci
- Ufficio Territoriale Biodiversità di Castel di Sangro-Centro Ricerche Ambienti Montani, Corpo Forestale dello Stato, Castel di Sangro, Italy
| | - Tiziana Altea
- Ufficio Territoriale Biodiversità di Castel di Sangro-Centro Ricerche Ambienti Montani, Corpo Forestale dello Stato, Castel di Sangro, Italy
| | - Bruno De Cinti
- Istituto di Biologia Agroambientale e Forestale, Consiglio Nazionale delle Ricerche, Monterotondo Scalo, Italy
| | - Giorgio Matteucci
- Istituto per i Sistemi Agricoli e Forestali del Mediterraneo, Consiglio Nazionale delle Ricerche, Ercolano (Na), Italy
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Scartazza A, Di Baccio D, Bertolotto P, Gavrichkova O, Matteucci G. Investigating the European beech (Fagus sylvatica L.) leaf characteristics along the vertical canopy profile: leaf structure, photosynthetic capacity, light energy dissipation and photoprotection mechanisms. Tree Physiol 2016; 36:1060-76. [PMID: 27217526 DOI: 10.1093/treephys/tpw038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 04/09/2016] [Indexed: 05/11/2023]
Abstract
Forest functionality and productivity are directly related to canopy light interception and can be affected by potential damage from high irradiance. However, the mechanisms by which leaves adapt to the variable light environments along the multilayer canopy profile are still poorly known. We explored the leaf morphophysiological and metabolic responses to the natural light gradient in a pure European beech (Fagus sylvatica L.) forest at three different canopy heights (top, middle and bottom). Structural adjustment through light-dependent modifications in leaf mass per area was the reason for most of the variations in photosynthetic capacity. The different leaf morphology along the canopy influenced nitrogen (N) partitioning, water- and photosynthetic N-use efficiency, chlorophyll (Chl) fluorescence and quali-quantitative contents of photosynthetic pigments. The Chl a to Chl b ratio and the pool of xanthophyll-cycle pigments (VAZ) increased at the highest irradiance, as well as lutein and β-carotene. The total pool of ascorbate and phenols was higher in leaves of the top and middle canopy layers when compared with the bottom layer, where the ascorbate peroxidase was relatively more activated. The non-photochemical quenching was strongly and positively related to the VAZ/(Chl a + b) ratio, while Chl a/Chl b was related to the photochemical efficiency of photosystem II. Along the multilayer canopy profile, the high energy dissipation capacity of leaves was correlated to an elevated redox potential of antioxidants. The middle layer gave the most relevant contribution to leaf area index and carboxylation capacity of the canopy. In conclusion, a complex interplay among structural, physiological and biochemical traits drives the dynamic leaf acclimation to the natural gradients of variable light environments along the tree canopy profile. The relevant differences observed in leaf traits within the canopy positions of the beech forest should be considered for improving estimation of carbon fluxes in multilayer canopy models of temperate forests.
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Affiliation(s)
- Andrea Scartazza
- Institute of Agro-environmental and Forest Biology (IBAF), National Research Council of Italy (CNR), Via Salaria Km 29,300, I-00016 Monterotondo Scalo, RM, Italy Institute of Agro-environmental and Forest Biology (IBAF), National Research Council of Italy (CNR), Viale G. Marconi 2, I-05010 Porano, TR, Italy
| | - Daniela Di Baccio
- Institute of Agro-environmental and Forest Biology (IBAF), National Research Council of Italy (CNR), Via Salaria Km 29,300, I-00016 Monterotondo Scalo, RM, Italy
| | - Pierangelo Bertolotto
- Institute of Agro-environmental and Forest Biology (IBAF), National Research Council of Italy (CNR), Via Salaria Km 29,300, I-00016 Monterotondo Scalo, RM, Italy
| | - Olga Gavrichkova
- Institute of Agro-environmental and Forest Biology (IBAF), National Research Council of Italy (CNR), Viale G. Marconi 2, I-05010 Porano, TR, Italy
| | - Giorgio Matteucci
- Institute of Agro-environmental and Forest Biology (IBAF), National Research Council of Italy (CNR), Via Salaria Km 29,300, I-00016 Monterotondo Scalo, RM, Italy Institute for Agricultural and Forestry Systems in the Mediterranean (ISAFoM), National Research Council of Italy (CNR), Via Patacca 85, I-80056 Ercolano, NA, Italy
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Picardi A, Lega I, Tarsitani L, Caredda M, Matteucci G, Zerella MP, Miglio R, Gigantesco A, Cerbo M, Gaddini A, Spandonaro F, Biondi M. A randomised controlled trial of the effectiveness of a program for early detection and treatment of depression in primary care. J Affect Disord 2016; 198:96-101. [PMID: 27015158 DOI: 10.1016/j.jad.2016.03.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/13/2016] [Accepted: 03/07/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVE There is considerable uncertainty about whether depression screening programs in primary care may improve outcomes and what specific features of such programs may contribute to success. We tested the effectiveness of a program involving substantial commitment from local mental health services. METHODS Prospective, randomised, patient- and evaluator-masked, parallel-group, controlled study. Participants were recruited in several urban primary care practices where they completed the PC-SAD screener and WHOQOL-Bref. Those who screened positive and did not report suicidal ideation (N=115) were randomised to an intervention group (communication of the result and offer of psychiatric evaluation and treatment free of charge; N=56) or a control group (no feedback on test result for 3 months; N=59). After 3 months, 100 patients agreed to a follow-up telephone interview including the administration of the PC-SAD5 and WHOQOL-Bref. RESULTS Depression severity and quality of life improved significantly in both groups. Intent-to-treat analysis showed no effect of the intervention. As only 37% of patients randomised to the intervention group actually contacted the study outpatient clinic, we performed a per-protocol analysis to determine whether the intervention, if delivered as planned, had been effective. This analysis revealed a significant positive effect of the intervention on severity of depressive symptoms, and on response and remission rate. Complier average causal effect analysis yielded similar results. CONCLUSION Due to the relatively small sample size, our findings should be regarded as preliminary and have limited generalizability. They suggest that there are considerable barriers on the part of many patients to the implementation of depression screening programs in primary care. While such programs can be effective, they should be designed based on the understanding of patients' perspectives.
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Affiliation(s)
- A Picardi
- Mental Health Unit, Centre of Epidemiology, Surveillance and Health Promotion, Italian National Institute of Health, Rome, Italy.
| | - I Lega
- Mental Health Unit, Centre of Epidemiology, Surveillance and Health Promotion, Italian National Institute of Health, Rome, Italy
| | - L Tarsitani
- Department of Psychiatric Sciences and Psychological Medicine, 'Sapienza' University of Rome, Rome, Italy
| | - M Caredda
- Department of Psychiatric Sciences and Psychological Medicine, 'Sapienza' University of Rome, Rome, Italy
| | - G Matteucci
- Department of Psychiatric Sciences and Psychological Medicine, 'Sapienza' University of Rome, Rome, Italy
| | - M P Zerella
- Department of Psychiatric Sciences and Psychological Medicine, 'Sapienza' University of Rome, Rome, Italy
| | - R Miglio
- Department of Statistics, University of Bologna, Italy
| | - A Gigantesco
- Mental Health Unit, Centre of Epidemiology, Surveillance and Health Promotion, Italian National Institute of Health, Rome, Italy
| | - M Cerbo
- National Agency for Regional Health Services, Rome, Italy
| | - A Gaddini
- Agency for Public Health, Lazio Region, Italy
| | | | - M Biondi
- Department of Psychiatric Sciences and Psychological Medicine, 'Sapienza' University of Rome, Rome, Italy
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Scartazza A, Moscatello S, Matteucci G, Battistelli A, Brugnoli E. Combining stable isotope and carbohydrate analyses in phloem sap and fine roots to study seasonal changes of source-sink relationships in a Mediterranean beech forest. Tree Physiol 2015; 35:829-39. [PMID: 26093372 DOI: 10.1093/treephys/tpv048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 05/09/2015] [Indexed: 05/05/2023]
Abstract
Carbon isotope composition (δ(13)C) and carbohydrate content of phloem sap and fine roots were measured in a Mediterranean beech (Fagus sylvatica L.) forest throughout the growing season to study seasonal changes of source-sink relationships. Seasonal variations of δ(13)C and content of phloem sap sugars, collected during the daylight period, reflected the changes in soil and plant water status. The correlation between δ(13)C and content of phloem sap sugars, collected from plants belonging to different social classes, was significantly positive only during the driest month of July. In this month, δ(13)C of phloem sap sugars was inversely related to the increment of trunk radial growth and positively related to δ(13)C of fine roots. We conclude that the relationship between δ(13)C and the amount of phloem sap sugars is affected by a combination of causes, such as sink strength, tree social class, changes in phloem anatomy and transport capacity, and phloem loading of sugars to restore sieve tube turgor following the reduced plant water potential under drought conditions. However, δ(13)C and sugar composition of fine roots suggested that phloem transport of leaf sucrose to this belowground component was not impaired by mild drought and that sucrose was in a large part allocated towards fine roots in July, depending on tree social class. Hence, fine roots could represent a functional carbon sink during the dry seasonal periods, when transport and use of assimilates in other sink tissues are reduced. These results indicate a strict link between above- and belowground processes and highlight a rapid response of this Mediterranean forest to changes in environmental drivers to regulate source-sink relationships and carbon sink capacity.
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Affiliation(s)
- Andrea Scartazza
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Via Salaria km 29,300, 00016 Monterotondo Scalo (RM), Italy Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Viale G. Marconi 2, 05010 Porano (TR), Italy
| | - Stefano Moscatello
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Viale G. Marconi 2, 05010 Porano (TR), Italy
| | - Giorgio Matteucci
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Via Salaria km 29,300, 00016 Monterotondo Scalo (RM), Italy Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (ISAFoM), Consiglio Nazionale delle Ricerche (CNR), Via Cavour 4/6, 87036 Rende (CS), Italy
| | - Alberto Battistelli
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Viale G. Marconi 2, 05010 Porano (TR), Italy
| | - Enrico Brugnoli
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Viale G. Marconi 2, 05010 Porano (TR), Italy Present address: Dipartimento Scienze del Sistema Terra e Tecnologie per l'Ambiente, Consiglio Nazionale delle Ricerche (CNR), Piazzale Aldo Moro 7, 00185 Roma (RM), Italy
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Jonard M, Fürst A, Verstraeten A, Thimonier A, Timmermann V, Potočić N, Waldner P, Benham S, Hansen K, Merilä P, Ponette Q, de la Cruz AC, Roskams P, Nicolas M, Croisé L, Ingerslev M, Matteucci G, Decinti B, Bascietto M, Rautio P. Tree mineral nutrition is deteriorating in Europe. Glob Chang Biol 2015; 21:418-30. [PMID: 24920268 DOI: 10.1111/gcb.12657] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 05/21/2014] [Indexed: 05/26/2023]
Abstract
The response of forest ecosystems to increased atmospheric CO2 is constrained by nutrient availability. It is thus crucial to account for nutrient limitation when studying the forest response to climate change. The objectives of this study were to describe the nutritional status of the main European tree species, to identify growth-limiting nutrients and to assess changes in tree nutrition during the past two decades. We analysed the foliar nutrition data collected during 1992-2009 on the intensive forest monitoring plots of the ICP Forests programme. Of the 22 significant temporal trends that were observed in foliar nutrient concentrations, 20 were decreasing and two were increasing. Some of these trends were alarming, among which the foliar P concentration in F. sylvatica, Q. Petraea and P. sylvestris that significantly deteriorated during 1992-2009. In Q. Petraea and P. sylvestris, the decrease in foliar P concentration was more pronounced on plots with low foliar P status, meaning that trees with latent P deficiency could become deficient in the near future. Increased tree productivity, possibly resulting from high N deposition and from the global increase in atmospheric CO2, has led to higher nutrient demand by trees. As the soil nutrient supply was not always sufficient to meet the demands of faster growing trees, this could partly explain the deterioration of tree mineral nutrition. The results suggest that when evaluating forest carbon storage capacity and when planning to reduce CO2 emissions by increasing use of wood biomass for bioenergy, it is crucial that nutrient limitations for forest growth are considered.
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Affiliation(s)
- Mathieu Jonard
- UCL-ELI, Université catholique de Louvain, Earth and Life Institute, Croix du Sud 2, L7.05.09, Louvain-la-Neuve, BE-1348, Belgium
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Ferretti M, Marchetto A, Arisci S, Bussotti F, Calderisi M, Carnicelli S, Cecchini G, Fabbio G, Bertini G, Matteucci G, de Cinti B, Salvati L, Pompei E. On the tracks of Nitrogen deposition effects on temperate forests at their southern European range - an observational study from Italy. Glob Chang Biol 2014; 20:3423-3438. [PMID: 24729460 DOI: 10.1111/gcb.12552] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 02/07/2014] [Indexed: 06/03/2023]
Abstract
We studied forest monitoring data collected at permanent plots in Italy over the period 2000-2009 to identify the possible impact of nitrogen (N) deposition on soil chemistry, tree nutrition and growth. Average N throughfall (N-NO3 +N-NH4 ) ranged between 4 and 29 kg ha(-1) yr(-1) , with Critical Loads (CLs) for nutrient N exceeded at several sites. Evidence is consistent in pointing out effects of N deposition on soil and tree nutrition: topsoil exchangeable base cations (BCE) and pH decreased with increasing N deposition, and foliar nutrient N ratios (especially N : P and N : K) increased. Comparison between bulk openfield and throughfall data suggested possible canopy uptake of N, levelling out for bulk deposition >4-6 kg ha(-1) yr(-1) . Partial Least Square (PLS) regression revealed that - although stand and meteorological variables explained the largest portion of variance in relative basal area increment (BAIrel 2000-2009) - N-related predictors (topsoil BCE, C : N, pH; foliar N-ratios; N deposition) nearly always improved the BAIrel model in terms of variance explained (from 78.2 to 93.5%) and error (from 2.98 to 1.50%). N deposition was the strongest predictor even when stand, management and atmosphere-related variables (meteorology and tropospheric ozone) were accounted for. The maximal annual response of BAIrel was estimated at 0.074-0.085% for every additional kgN. This corresponds to an annual maximal relative increase of 0.13-0.14% of carbon sequestered in the above-ground woody biomass for every additional kgN, i.e. a median value of 159 kgC per kgN ha(-1) yr(-1) (range: 50-504 kgC per kgN, depending on the site). Positive growth response occurred also at sites where signals of possible, perhaps recent N saturation were detected. This may suggest a time lag for detrimental N effects, but also that, under continuous high N input, the reported positive growth response may be not sustainable in the long-term.
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Affiliation(s)
- Marco Ferretti
- TerraData environmetrics, Via L. Bardelloni 19, Monterotondo Marittimo, I-58025, Italy; Dipartimento di Biotecnologie Agrarie, Sezione di Botanica Ambientale ed Applicata, Università di Firenze, Piazzale Cascine 28, Firenze, I-50144, Italy
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Collalti A, Perugini L, Santini M, Chiti T, Nolè A, Matteucci G, Valentini R. A process-based model to simulate growth in forests with complex structure: Evaluation and use of 3D-CMCC Forest Ecosystem Model in a deciduous forest in Central Italy. Ecol Modell 2014. [DOI: 10.1016/j.ecolmodel.2013.09.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Costa A, Salvidio S, Posillico M, Altea T, Matteucci G, Romano A. What goes in does not come out: different non-lethal dietary methods give contradictory interpretation of prey selectivity in amphibians. AMPHIBIA-REPTILIA 2014. [DOI: 10.1163/15685381-00002944] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To date the most commonly used non-lethal methods in amphibian dietary studies are stomach flushing and faecal analysis. In this study, we compared the outcome of these two methods in interpreting prey selectivity when the available prey community in the environment is known. Stomach flushed contents and faeces were obtained from the same 27 individuals of the spectacled salamander (Salamandrina perspicillata) from a site in Central Italy. The interpretation of the population prey selection strategy varied in relation to the method used. Stomach content analysis suggested that salamanders were highly specialized on springtails, while faecal contents indicated a generalist trophic strategy. Prey selectivity indexes were also highly divergent: the analysis of stomach contents indicated a significant positive selection upon springtails, while exactly the opposite conclusion was obtained when faecal contents were analyzed. The results confirm that in amphibians, stomach analysis provides more reliable dietary data in comparison to faecal analysis. This is related to the fact that soft-bodied prey items tend to be more fully digested, disappearing in faeces while highly chitinized and less digestible prey taxa tend to increase their relative abundances in faeces.
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Affiliation(s)
- Andrea Costa
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Sebastiano Salvidio
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università di Genova, Corso Europa 26, 16132 Genova, Italy
- Consiglio Nazionale delle Ricerche, Istituto di Biologia Agroambientale e Forestale (CNR-IBAF), Area di Ricerca Roma 1, Via Salaria km 29,300, 00015 Monterotondo (RM), Italy
| | - Mario Posillico
- Corpo Forestale dello Stato, Ufficio Territoriale Biodiversità di Castel di Sangro, Via Sangro 45, 67031 Castel di Sangro (AQ), Italy
- Consiglio Nazionale delle Ricerche, Istituto di Biologia Agroambientale e Forestale (CNR-IBAF), Area di Ricerca Roma 1, Via Salaria km 29,300, 00015 Monterotondo (RM), Italy
| | - Tiziana Altea
- Corpo Forestale dello Stato, Ufficio Territoriale Biodiversità di Castel di Sangro, Via Sangro 45, 67031 Castel di Sangro (AQ), Italy
| | - Giorgio Matteucci
- Consiglio Nazionale delle Ricerche, Istituto di Biologia Agroambientale e Forestale (CNR-IBAF), Area di Ricerca Roma 1, Via Salaria km 29,300, 00015 Monterotondo (RM), Italy
- Consiglio Nazionale delle Ricerche, Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFOM), Via Cavour 4-6, 87036 Rende (CS), Italy
| | - Antonio Romano
- Consiglio Nazionale delle Ricerche, Istituto di Biologia Agroambientale e Forestale (CNR-IBAF), Area di Ricerca Roma 1, Via Salaria km 29,300, 00015 Monterotondo (RM), Italy
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Picardi A, Adler DA, Rogers WH, Lega I, Zerella MP, Matteucci G, Tarsitani L, Caredda M, Gigantesco A, Biondi M. Diagnostic Accuracy of the Primary Care Screener for Affective Disorder (PC-SAD) in Primary Care. Clin Pract Epidemiol Ment Health 2013; 9:164-70. [PMID: 24155771 PMCID: PMC3804886 DOI: 10.2174/1745017901309010164] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 07/26/2013] [Accepted: 08/07/2013] [Indexed: 11/26/2022]
Abstract
Background: Depression goes often unrecognised and untreated in non-psychiatric medical settings. Screening has recently gained acceptance as a first step towards improving depression recognition and management. The Primary Care Screener for Affective Disorders (PC-SAD) is a self-administered questionnaire to screen for Major Depressive Disorder (MDD) and Dysthymic Disorder (Dys) which has a sophisticated scoring algorithm that confers several advantages. This study tested its performance against a ‘gold standard’ diagnostic interview in primary care. Methods: A total of 416 adults attending 13 urban general internal medicine primary care practices completed the PC-SAD. Of 409 who returned a valid PC-SAD, all those scoring positive (N=151) and a random sample (N=106) of those scoring negative were selected for a 3-month telephone follow-up assessment including the administration of the Structured Clinical Interview for DSM-IV-TR Axis I Disorders (SCID-I) by a psychiatrist who was masked to PC-SAD results. Results: Most selected patients (N=212) took part in the follow-up assessment. After adjustment for partial verification bias the sensitivity, specificity, positive and negative predictive value for MDD were 90%, 83%, 51%, and 98%. For Dys, the corresponding figures were 78%, 79%, 8%, and 88%. Conclusions: While some study limitations suggest caution in interpreting our results, this study corroborated the diagnostic validity of the PC-SAD, although the low PPV may limit its usefulness with regard to Dys. Given its good psychometric properties and the short average administration time, the PC-SAD might be the screening instrument of choice in settings where the technology for computer automated scoring is available.
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Affiliation(s)
- Angelo Picardi
- Mental Health Unit, Centre of Epidemiology, Surveillance and Health Promotion, Italian National Institute of Health, Rome, Italy
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Guidolotti G, Rey A, D'Andrea E, Matteucci G, De Angelis P. Effect of environmental variables and stand structure on ecosystem respiration components in a Mediterranean beech forest. Tree Physiol 2013; 33:960-972. [PMID: 24044943 DOI: 10.1093/treephys/tpt065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The temporal variability of ecosystem respiration (RECO) has been reported to have important effects on the temporal variability of net ecosystem exchange, the net amount of carbon exchanged between an ecosystem and the atmosphere. However, our understanding of ecosystem respiration is rather limited compared with photosynthesis or gross primary productivity, particularly in Mediterranean montane ecosystems. In order to investigate how environmental variables and forest structure (tree classes) affect different respiration components and RECO in a Mediterranean beech forest, we measured soil, stem and leaf CO2 efflux rates with dynamic chambers and RECO by the eddy-covariance technique over 1 year (2007-2008). Ecosystem respiration showed marked seasonal variation, with the highest rates in spring and autumn and the lowest in summer. We found that the soil respiration (SR) was mainly controlled by soil water content below a threshold value of 0.2 m(3) m(-3), above which the soil temperature explained temporal variation in SR. Stem CO2 effluxes were influenced by air temperature and difference between tree classes with higher rates measured in dominant trees than in co-dominant ones. Leaf respiration (LR) varied significantly between the two canopy layers considered. Non-structural carbohydrates were a very good predictor of LR variability. We used these measurements to scale up respiration components to ecosystem respiration for the whole canopy and obtained cumulative amounts of carbon losses over the year. Based on the up-scaled chamber measurements, the relative contributions of soil, stem and leaves to the total annual CO2 efflux were: 56, 8 and 36%, respectively. These results confirm that SR is the main contributor of ecosystem respiration and provided an insight on the driving factors of respiration in Mediterranean montane beech forests.
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Affiliation(s)
- Gabriele Guidolotti
- Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via S. Camillo de Lellis snc, 01100 Viterbo, Italy
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Scartazza A, Moscatello S, Matteucci G, Battistelli A, Brugnoli E. Seasonal and inter-annual dynamics of growth, non-structural carbohydrates and C stable isotopes in a Mediterranean beech forest. Tree Physiol 2013; 33:730-42. [PMID: 23933829 DOI: 10.1093/treephys/tpt045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Seasonal and inter-annual dynamics of growth, non-structural carbohydrates (NSC) and carbon isotope composition (δ(13)C) of NSC were studied in a beech forest of Central Italy over a 2-year period characterized by different environmental conditions. The net C assimilated by forest trees was mainly used to sustain growth early in the season and to accumulate storage carbohydrates in trunk and root wood in the later part of the season, before leaf shedding. Growth and NSC concentration dynamics were only slightly affected by the reduced soil water content (SWC) during the drier year. Conversely, the carbon isotope analysis on NSC revealed seasonal and inter-annual variations of photosynthetic and post-carboxylation fractionation processes, with a significant increase in δ(13)C of wood and leaf soluble sugars in the drier summer year than in the wetter one. The highly significant correlation between δ(13)C of leaf soluble sugars and SWC suggests a decrease of the canopy C isotope discrimination and, hence, an increased water-use efficiency with decreasing soil water availability. This may be a relevant trait for maintaining an acceptable plant water status and a relatively high C sink capacity during dry seasonal periods. Our results suggest a short- to medium-term homeostatic response of the Collelongo beech stand to variations in water availability and solar radiation, indicating that this Mediterranean forest was able to adjust carbon-water balance in order to prevent C depletion and to sustain plant growth and reserve accumulation during relatively dry seasons.
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Affiliation(s)
- Andrea Scartazza
- Istituto di Biologia Agroambientale e Forestale (IBAF), Consiglio Nazionale delle Ricerche (CNR), Via Salaria km 29,300, 00016 Monterotondo Scalo (RM), Italy.
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Niu S, Luo Y, Fei S, Yuan W, Schimel D, Law BE, Ammann C, Altaf Arain M, Arneth A, Aubinet M, Barr A, Beringer J, Bernhofer C, Andrew Black T, Buchmann N, Cescatti A, Chen J, Davis KJ, Dellwik E, Desai AR, Etzold S, Francois L, Gianelle D, Gielen B, Goldstein A, Groenendijk M, Gu L, Hanan N, Helfter C, Hirano T, Hollinger DY, Jones MB, Kiely G, Kolb TE, Kutsch WL, Lafleur P, Lawrence DM, Li L, Lindroth A, Litvak M, Loustau D, Lund M, Marek M, Martin TA, Matteucci G, Migliavacca M, Montagnani L, Moors E, William Munger J, Noormets A, Oechel W, Olejnik J, U KTP, Pilegaard K, Rambal S, Raschi A, Scott RL, Seufert G, Spano D, Stoy P, Sutton MA, Varlagin A, Vesala T, Weng E, Wohlfahrt G, Yang B, Zhang Z, Zhou X. Thermal optimality of net ecosystem exchange of carbon dioxide and underlying mechanisms. New Phytol 2012; 194:775-783. [PMID: 22404566 DOI: 10.1111/j.1469-8137.2012.04095.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
• It is well established that individual organisms can acclimate and adapt to temperature to optimize their functioning. However, thermal optimization of ecosystems, as an assemblage of organisms, has not been examined at broad spatial and temporal scales. • Here, we compiled data from 169 globally distributed sites of eddy covariance and quantified the temperature response functions of net ecosystem exchange (NEE), an ecosystem-level property, to determine whether NEE shows thermal optimality and to explore the underlying mechanisms. • We found that the temperature response of NEE followed a peak curve, with the optimum temperature (corresponding to the maximum magnitude of NEE) being positively correlated with annual mean temperature over years and across sites. Shifts of the optimum temperature of NEE were mostly a result of temperature acclimation of gross primary productivity (upward shift of optimum temperature) rather than changes in the temperature sensitivity of ecosystem respiration. • Ecosystem-level thermal optimality is a newly revealed ecosystem property, presumably reflecting associated evolutionary adaptation of organisms within ecosystems, and has the potential to significantly regulate ecosystem-climate change feedbacks. The thermal optimality of NEE has implications for understanding fundamental properties of ecosystems in changing environments and benchmarking global models.
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Affiliation(s)
- Shuli Niu
- Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Yiqi Luo
- Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
- Institute of Global Environmental Change Research, Fudan University, Shanghai, China
| | - Shenfeng Fei
- Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Wenping Yuan
- College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
| | - David Schimel
- NEON, Inc., 5340 Airport Blvd, Boulder, CO 80301, USA
| | - Beverly E Law
- College of Forestry, Oregon State University, Corvallis, OR 97331-2209, USA
| | - Christof Ammann
- Federal Research Station Agroscope Reckenholz-Tänikon, Reckenholzstr. 191, 8046 Zürich, Switzerland
| | - M Altaf Arain
- School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada L8S 4K1
| | - Almut Arneth
- Department of Physical Geography and Ecosystems Analysis, Lund University, 223 62 Lund, Sweden
- Atmospheric Environmental Research, Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Germany
| | - Marc Aubinet
- Faculté Universitaire des Sciences Agronomiques de Gembloux, Unitéde Physique des Biosystémes, B-5030 Gembloux, Belgium
| | - Alan Barr
- Climate Research Division, Environment Canada, Saskatoon, SK S7N 3H5, Canada
| | - Jason Beringer
- School of Geography and Environmental Science, Monash University, Clayton, Vic 3800, Australia
| | - Christian Bernhofer
- Institute of Hydrology and Meteorology, Chair of Meteorology, Technische Universität Dresden, 01062 Dresden, Germany
| | - T Andrew Black
- Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - Nina Buchmann
- ETH, Zurich, Institute of Plant Science, Universitaetsstrasse 2, Zürich 8092, Switzerland
| | - Alessandro Cescatti
- European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra, Italy
| | - Jiquan Chen
- Department of Environmental Sciences (DES), University of Toledo, Toledo, OH 43606, USA
| | - Kenneth J Davis
- Earth System Science Center, Pennsylvania State University, State College, PA 16802, USA
| | - Ebba Dellwik
- Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark, P.O. 49, DK-4000 Roskilde, Denmark
| | - Ankur R Desai
- Department of Atmospheric and Oceanic Sciences, University of Wisconsin, Madison, WC, 53706, USA
| | - Sophia Etzold
- ETH, Zurich, Institute of Plant Science, Universitaetsstrasse 2, Zürich 8092, Switzerland
| | - Louis Francois
- Unité de Modélisation du Climat et des Cycles Biogéochimiques (UMCCB) Université de Liège, B-4000 Liège, Belgium
| | - Damiano Gianelle
- Sustainable Agro-ecosystems and Bioresources Department, IASMA Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 San Michele all'Adige, (TN), Italy
| | - Bert Gielen
- Department of Biology, University of Antwerpen, Universiteitsplein 1, Wilrijk, B-2610, Belgium
| | - Allen Goldstein
- Department of Environmental Science, Policy and Management, University of California, Berkeley, California 94720, USA
| | - Margriet Groenendijk
- Department of Earth Science, Faculty of Earth and Life Sciences, VU University Amsterdam, Boelelaan 1085, 1081 HV Amsterdam, the Netherlands
| | - Lianhong Gu
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 USA
| | - Niall Hanan
- Geographic Information Science Center of Excellence (GIScCE), South Dakota State University, 1021 Medary Ave., Wecota Hall 506B, Brookings, SD 57007-3510, USA
| | - Carole Helfter
- Centre for Ecology and Hydrology (CEH), Bush Estate, Penicuik, Midlothian, Scotland EH26 0QB, UK
| | - Takashi Hirano
- Hokkaido University N9, W9, Kita-ku, Sapporo, Hokkaido, 060-8589, Japan
| | - David Y Hollinger
- USDA Forest Service, Northern Research Station, Durham, NH 03824, USA
| | - Mike B Jones
- Botany Department, Trinity College of Dublin, Dublin, Ireland
| | - Gerard Kiely
- Civil and Environmental Engineering Department, University College Cork, Cork, Ireland
| | - Thomas E Kolb
- School of Forestry, Northern Arizona University, Flagstaff, AZ 86001, USA
| | - Werner L Kutsch
- Johann Heinrich von Thünen-Institute (vTI), Institute for Climate Research, Braunschweig, Germany
| | - Peter Lafleur
- Department of Geography, Trent University, Peterborough, ON K9J 7B8, Canada
| | - David M Lawrence
- National Center for Atmospheric Research, Boulder, CO 80305, USA
| | - Linghao Li
- State Key laboratory of Vegetation and Environmental Changes, Institute of Botany, Chinese Academy of Sciences
| | - Anders Lindroth
- Department of Physical Geography and Ecosystems Analysis, Lund University, 223 62 Lund, Sweden
| | - Marcy Litvak
- Biology Department, University of New Mexico, Albuquerque, NM 87131-001, USA
| | - Denis Loustau
- INRA, UR1263 EPHYSE, F-33140, Villenave d'Ornon, France
| | - Magnus Lund
- Department of Physical Geography and Ecosystems Analysis, Lund University, 223 62 Lund, Sweden
| | - Michal Marek
- Institute of Systems Biology and Ecology, Academy of Sciences of the Czech Republic, Poříčí3b, CZ-60300 Brno, Czech Republic
| | | | - Giorgio Matteucci
- National Research Council, Institute of Agroenvironmental and Forest Biology, 00015 Monterotondo Scalo (RM), Italy
| | - Mirco Migliavacca
- European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra, Italy
| | - Leonardo Montagnani
- Servizi Forestali, Agenzia per l'Ambiente, Provincia Autonoma di Bolzano, 39100, Bolzano, Italy
- Faculty of Science and Technology, Free University of Bolzano, Piazza Università 1, 39100 Bolzano, Italy
| | - Eddy Moors
- ESS-CC, Alterra, Wageningen UR, PO Box 47, 6700 AA Wageningen, The Netherlands NL
| | - J William Munger
- Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Asko Noormets
- North Carolina State University/USDA Forest Service, Southern Global Change Program, Raleigh, NC, 27606, USA
| | - Walter Oechel
- Department of Biology, San Diego State University, San Diego, CA 92182-4614, USA
| | - Janusz Olejnik
- Meteorology Department, Poznan University of Life Sciences (PULS), 60-667 Poznan, Poland
| | - Kyaw Tha Paw U
- Atmospheric Science Group, LAWR, UC Davis, Davis, CA 95616, USA
| | - Kim Pilegaard
- Biosystems Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark, P.O. 49, DK-4000 Roskilde, Denmark
| | - Serge Rambal
- DREAM, CEFE, CNRS, UMR5175, 1919 route de Mende, F-34293 Montpellier, Cedex 5, France
| | - Antonio Raschi
- CNR - Instituto di Biometeorologia (IBIMET), Via Giovanni Caproni 8, 50145 Firenze, Italy
| | - Russell L Scott
- USDA-ARS Southwest Watershed Research Center, Tucson, AZ 85719, USA
| | - Günther Seufert
- European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra, Italy
| | - Donatella Spano
- Department of Economics and Woody Plant Ecosystems, University of Sassari, Sassari, Italy
| | - Paul Stoy
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT 59717, USA
| | - Mark A Sutton
- USDA Forest Service, Northern Research Station, Durham, NH 03824, USA
| | - Andrej Varlagin
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Lenisky pr., 33 Moscow, 119071, Russia
| | - Timo Vesala
- Department of Physics, FI-00014, University of Helsinki, Finland
| | - Ensheng Weng
- Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Georg Wohlfahrt
- University of Innsbruck, Institute of Ecology Sternwartestr 15, Innsbruck 6020, Austria
| | - Bai Yang
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 USA
| | - Zhongda Zhang
- Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Xuhui Zhou
- Institute of Global Environmental Change Research, Fudan University, Shanghai, China
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Picardi A, Adler DA, Chang H, Lega I, Gigantesco A, Pasquini P, Matteucci G, Zerella MP, Caredda M, Tarsitani L, Biondi M, Rogers WH. Development and preliminary validation of the PC-SAD5, a screener-derived short depression severity measure. J Eur Acad Dermatol Venereol 2011; 26:165-71. [PMID: 21395694 DOI: 10.1111/j.1468-3083.2011.04022.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The prevalence of depressive disorders is high among patients with skin disease. The PC-SAD is a 37-item self-administered depression screening questionnaire that has been validated in dermatological patients. OBJECTIVE The aim of this study was to develop and validate a brief depression severity instrument derived from the PC-SAD that can be used to assess severity and monitor ongoing clinical course. METHODS Two patient samples participated in the study: 72 adult dermatological inpatients and 73 adults attending six primary care practices. Psychiatric assessment included the Structured Clinical Interview for DSM-IV and an 18-item version of the PC-SAD; moreover, dermatological patients completed the Patient Health Questionnaire depression scale (PHQ-9), while primary care patients were administered the Montgomery-Asberg Depression Rating Scale (MADRS). A subset of five PC-SAD items showing the best psychometric properties were selected, and the reliability and validity of the resulting instrument (PC-SAD5) were examined. RESULTS The PC-SAD5 showed satisfactory internal consistency in both samples. There was a high correlation between PC-SAD5 and PHQ-9 and MADRS scores. Multiple regression analysis revealed a gradient of PC-SAD5 scores from patients with no mental disorder, those with milder forms of depression, to those with Major Depressive Disorder. Similar results were observed for the 18-item version of the PC-SAD. CONCLUSION The availability of valid and reliable continuous measures of depression severity derived from the PC-SAD extends its field of application from depression screening to use as a follow-up measure of depression severity in routine clinical practice. A validated very short instrument such as the PC-SAD5 may have substantial clinical value.
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Affiliation(s)
- A Picardi
- Mental Health Unit, Centre of Epidemiology, Surveillance and Health Promotion, Italian National Institute of Health, Rome, Italy.
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Piovesan G, Alessandrini A, Baliva M, Chiti T, D'Andrea E, De Cinti B, Di Filippo A, Hermanin L, Lauteri M, Scarascia Mugnozza G, Schirone B, Ziaco E, Matteucci G. STRUCTURAL PATTERNS, GROWTH PROCESSES, CARBON STOCKS IN AN ITALIAN NETWORK OF OLD-GROWTH BEECH FORESTS. ACTA ACUST UNITED AC 2010. [DOI: 10.4129/ifm.2010.5.07] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Migliavacca M, Meroni M, Busetto L, Colombo R, Zenone T, Matteucci G, Manca G, Seufert G. Modeling gross primary production of agro-forestry ecosystems by assimilation of satellite-derived information in a process-based model. Sensors (Basel) 2009; 9:922-42. [PMID: 22399948 PMCID: PMC3280840 DOI: 10.3390/s90200922] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 02/10/2009] [Accepted: 02/12/2009] [Indexed: 11/16/2022]
Abstract
In this paper we present results obtained in the framework of a regional-scale analysis of the carbon budget of poplar plantations in Northern Italy. We explored the ability of the process-based model BIOME-BGC to estimate the gross primary production (GPP) using an inverse modeling approach exploiting eddy covariance and satellite data. We firstly present a version of BIOME-BGC coupled with the radiative transfer models PROSPECT and SAILH (named PROSAILH-BGC) with the aims of i) improving the BIOME-BGC description of the radiative transfer regime within the canopy and ii) allowing the assimilation of remotely-sensed vegetation index time series, such as MODIS NDVI, into the model. Secondly, we present a two-step model inversion for optimization of model parameters. In the first step, some key ecophysiological parameters were optimized against data collected by an eddy covariance flux tower. In the second step, important information about phenological dates and about standing biomass were optimized against MODIS NDVI. Results obtained showed that the PROSAILH-BGC allowed simulation of MODIS NDVI with good accuracy and that we described better the canopy radiation regime. The inverse modeling approach was demonstrated to be useful for the optimization of ecophysiological model parameters, phenological dates and parameters related to the standing biomass, allowing good accuracy of daily and annual GPP predictions. In summary, this study showed that assimilation of eddy covariance and remote sensing data in a process model may provide important information for modeling gross primary production at regional scale.
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Affiliation(s)
- Mirco Migliavacca
- Remote Sensing of Environmental Dynamics Lab., DISAT, University of Milano-Bicocca, Milano, Italy
| | - Michele Meroni
- Remote Sensing of Environmental Dynamics Lab., DISAT, University of Milano-Bicocca, Milano, Italy
| | - Lorenzo Busetto
- Remote Sensing of Environmental Dynamics Lab., DISAT, University of Milano-Bicocca, Milano, Italy
- Institute on Atmospheric Pollution (IIA), National Research Council (CNR), Roma, Italy
| | - Roberto Colombo
- Remote Sensing of Environmental Dynamics Lab., DISAT, University of Milano-Bicocca, Milano, Italy
| | - Terenzio Zenone
- Department of Forest Science and Environment, University of Tuscia, 01100 Viterbo, Italy
- European Commission, DG-JRC, Institute for Environment and Sustainability, Climate Change Unit, Ispra (VA), Italy
| | - Giorgio Matteucci
- European Commission, DG-JRC, Institute for Environment and Sustainability, Climate Change Unit, Ispra (VA), Italy
- Institute for Mediterranean Agricultural and Forest Systems, National Research Council, Rende (CS), Italy
| | - Giovanni Manca
- European Commission, DG-JRC, Institute for Environment and Sustainability, Climate Change Unit, Ispra (VA), Italy
| | - Guenther Seufert
- European Commission, DG-JRC, Institute for Environment and Sustainability, Climate Change Unit, Ispra (VA), Italy
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Ciais P, Reichstein M, Viovy N, Granier A, Ogée J, Allard V, Aubinet M, Buchmann N, Bernhofer C, Carrara A, Chevallier F, De Noblet N, Friend AD, Friedlingstein P, Grünwald T, Heinesch B, Keronen P, Knohl A, Krinner G, Loustau D, Manca G, Matteucci G, Miglietta F, Ourcival JM, Papale D, Pilegaard K, Rambal S, Seufert G, Soussana JF, Sanz MJ, Schulze ED, Vesala T, Valentini R. Europe-wide reduction in primary productivity caused by the heat and drought in 2003. Nature 2005; 437:529-33. [PMID: 16177786 DOI: 10.1038/nature03972] [Citation(s) in RCA: 1045] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2005] [Accepted: 06/23/2005] [Indexed: 11/09/2022]
Abstract
Future climate warming is expected to enhance plant growth in temperate ecosystems and to increase carbon sequestration. But although severe regional heatwaves may become more frequent in a changing climate, their impact on terrestrial carbon cycling is unclear. Here we report measurements of ecosystem carbon dioxide fluxes, remotely sensed radiation absorbed by plants, and country-level crop yields taken during the European heatwave in 2003. We use a terrestrial biosphere simulation model to assess continental-scale changes in primary productivity during 2003, and their consequences for the net carbon balance. We estimate a 30 per cent reduction in gross primary productivity over Europe, which resulted in a strong anomalous net source of carbon dioxide (0.5 Pg C yr(-1)) to the atmosphere and reversed the effect of four years of net ecosystem carbon sequestration. Our results suggest that productivity reduction in eastern and western Europe can be explained by rainfall deficit and extreme summer heat, respectively. We also find that ecosystem respiration decreased together with gross primary productivity, rather than accelerating with the temperature rise. Model results, corroborated by historical records of crop yields, suggest that such a reduction in Europe's primary productivity is unprecedented during the last century. An increase in future drought events could turn temperate ecosystems into carbon sources, contributing to positive carbon-climate feedbacks already anticipated in the tropics and at high latitudes.
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Affiliation(s)
- Ph Ciais
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE, F-91191, Gif sur Yvette, France.
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Bussotti F, Prancrazi M, Matteucci G, Gerosa G. Leaf morphology and chemistry in Fagus sylvatica (beech) trees as affected by site factors and ozone: results from CONECOFOR permanent monitoring plots in Italy. Tree Physiol 2005; 25:211-219. [PMID: 15574402 DOI: 10.1093/treephys/25.2.211] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
During summer 2001, leaf samples were collected from seven beech stands that are part of the Italian network of permanent monitoring plots (CONECOFOR). In each plot, sun leaves from the upper crown were collected from five trees and subjected to chemical analysis (C, N, P, S, K, Ca and Mg) and morphological analysis (area, dry mass, thickness and thickness of individual tissues). Based on the measurements, nutrient ratios (N/C, N/K, N/P, N/Ca, N/Mg, K/Ca, Mg/Ca), sclerophylly indices (leaf mass per area (LMA) and leaf density (LD)) and nitrogen content per leaf area unit (NLA) were determined. Stomatal density was also measured. Among stands, leaf area was smallest and sclerophylly (indicated as LMA) was greatest in the southernmost stands and under drought conditions. Reduced leaf area and increased LMA also appeared to be strongly related to tropospheric ozone concentrations, whereas crown transparency was related mainly to site factors such as rainfall and temperature and, to a lesser extent, ozone concentration. The southernmost stands had a lower N/C ratio than the more northern stands, suggesting that the apoplastic fraction of cells within the leaf played a greater role. In the northern stands (especially at Lombardy and in Piedmont) where ozone concentrations were high, nutrient ratios were unbalanced and the high value of LMA appeared to be related primarily to the contribution of plasmatic components. Overall, leaf morphology was most sensitive to climate stress at the southern plots and to environmental pollution (nitrogen deposition and tropospheric ozone concentration) at some of the northern plots.
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Affiliation(s)
- Filippo Bussotti
- Dipartimento di Biologia Vegetale, Università di Firenze, Piazzale delle Cascine 28, 50144 Firenze, Italy.
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Scartazza A, Mata C, Matteucci G, Yakir D, Moscatello S, Brugnoli E. Comparisons of δ13C of photosynthetic products and ecosystem respiratory CO2 and their responses to seasonal climate variability. Oecologia 2004; 140:340-51. [PMID: 15150655 DOI: 10.1007/s00442-004-1588-1] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2003] [Accepted: 04/07/2004] [Indexed: 10/26/2022]
Abstract
This study investigated the relationship between delta13C of ecosystem components, soluble plant carbohydrates and the isotopic signature of ecosystem respired CO2 (delta13CR) during seasonal changes in soil and atmospheric moisture in a beech (Fagus sylvatica L.) forest in the central Apennine mountains, Italy. Decrease in soil moisture and increase in air vapour pressure deficit during summer correlated with substantial increase in delta13C of leaf and phloem sap soluble sugars. Increases in delta13C of ecosystem respired CO2 were linearly related to increases in phloem sugar delta13C (r2=0.99, P<or=0.001) and leaf sugar delta13C (r2=0.981, P<or=0.01), indicating that a major proportion of ecosystem respired CO2 was derived from recent assimilates. The slopes of the best-fit lines differed significantly (P<or=0.05), however, and were about 0.86 (SE=0.04) for phloem sugars and about 1.63 (SE=0.16) for leaf sugars. Hence, changes in isotopic signature in phloem sugars were transferred to ecosystem respiration in the beech forest, while leaf sugars, with relatively small seasonal changes in delta13C, must have a slower turnover rate or a significant storage component. No significant variation in delta13C was observed in bulk dry matter of various plant and ecosystem components (including leaves, bark, wood, litter and soil organics). The apparent coupling between the delta13C of soluble sugars and ecosystem respiration was associated with large apparent isotopic disequilibria. Values of delta13CR were consistently more depleted by about 4 per thousand relative to phloem sugars, and by about 2 per thousand compared to leaf sugars. Since no combination of the measured pools could produce the observed delta13CR signal over the entire season, a significant isotopic discrimination against 13C might be associated with short-term ecosystem respiration. However, these differences might also be explained by substantial contributions of other not measured carbon pools (e.g., lipids) to ecosystem respiration or contributions linked to differences in footprint area between Keeling plots and carbohydrate sampling. Linking the seasonal and inter-annual variations in carbon isotope composition of carbohydrates and respiratory CO2 should be applicable in carbon cycle models and help the understanding of inter-annual variation in biospheric sink strength.
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Affiliation(s)
- Andrea Scartazza
- CNR, Istituto di Biologia Agroambientale e Forestale, Via Marconi 2, 05010, Porano (TR), Italy
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Matteucci G, Frost BG, Medina FF. Study of the field around magnetic force microscopy probes using electron holography. Ultramicroscopy 2004; 99:95-102. [PMID: 15093936 DOI: 10.1016/j.ultramic.2003.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2003] [Revised: 05/28/2003] [Accepted: 06/03/2003] [Indexed: 11/25/2022]
Abstract
We have used electron holography to perform quantitative investigations of the leakage flux of thin film tips used as probes in magnetic force microscopy. A method to deduce an arrangement of magnetic domains in a thin magnetic whisker from the knowledge of the stray flux is also described. A simple analytical model of the magnetic properties of the probes allows the extraction of computer images, which simulate the experimental results satisfactory. The reliability of the recorded experimental maps of the magnetic flux arising from these kinds of sensors allows an evaluation of the total flux affecting the sample and the calculation of the magnetic field profile along the tip axis.
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Affiliation(s)
- G Matteucci
- Department of Physics, Istituto Nazionale per la Fisica della Materia University of Bologna, V/le B. Pichat, 6/2, 40127 Bologna, Italy.
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Affiliation(s)
- Ernst-Detlef Schulze
- Max Planck Institute for Biogeochemistry, Post Office Box 100164, 07701 Jena, Germany
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Larese Filon F, Siracusa A, Rui F, Matteucci G, Pace ML, Fiorito A, Morucci P, Marabbini A. [Prevalence of occupational allergy to laboratory animals in two towns of northern and central Italy]. Med Lav 2002; 93:87-94. [PMID: 12087804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
BACKGROUND Laboratory animal allergy (LAA) is a well known occupational hazard for workers employed in biological and medical research institutes, but few Italian data on this disease exist. OBJECTIVES The aim of our study was to evaluate the prevalence of LAA in 45 workers in Trieste (NE-Italy) and in 80 workers in Perugia (Central Italy) and to assess factors predisposing to sensitisation among subjects occupationally exposed to animals. METHODS All subjects underwent a physical examination and responded to a standardized questionnaire for the evaluation of allergic respiratory symptoms and exposure data. Skin prick tests with common allergens and with hair extract from laboratory animals were performed and specific IgE was measured. Atopy was defined as positive skin prick test to common allergens. RESULTS There were 60% atopic subjects in Trieste and 55% in Perugia and sensitisation to laboratory animal hair was found in 24.4% subjects in Trieste and in 35% in Perugia. The prevalence rates of LLA were respectively 11.1% and 11.2%; 2.3% and 3.7% complained of asthma while 8.9% and 7.5% complained of rhinitis. The resulting symptoms were significantly related to skin prick tests that were positive to laboratory animal hair (odds ratio (OR) = 7.64; 1.83-44.5), to skin prick test positivity to common inhalant allergens (OR = 5.29; 1.09-50.2), to common allergic symptoms (OR = 3.95; 1.05-18.2) and to exposure time exceeding 5 hours per day (OR = 5.45; 1.31-22.0). CONCLUSION The role of atopy and of exposure time in causing LLA was confirmed and the need of prevention measures to reduce exposure in people at risk was discussed.
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Affiliation(s)
- F Larese Filon
- Dipartimento di Scienze di Medicina Pubblica, Università degli Studi di Trieste, Via della Pietà 19, 34129 Trieste.
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Pessina F, Matteucci G, Esposito L, Gorelli B, Valoti M, Sgaragli G. Protection of intrinsic nerves of guinea-pig detrusor strips against anoxia/glucopenia and reperfusion injury by taurine. Adv Exp Med Biol 2002; 483:325-33. [PMID: 11787616 DOI: 10.1007/0-306-46838-7_37] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
There is ample evidence that ischaemia is associated with partial denervation of the detrusor muscle and that this is responsible for much of its abnormal contractile behaviour, resulting in bladder dysfunction (instability). In guinea-pig nerves are very susceptible to the ischaemic damage as compared to the muscle cells. The purpose of this study was to assess the neuroprotection afforded by taurine on guinea-pig detrusor under ischaemic-like conditions. Guinea-pig detrusor strips were subjected for 60 min to ischaemic-like conditions, followed by 150 min reperfusion. Intrinsic nerves underwent every 30 min electrical field stimulation (EFS) by 5-s trains of square voltage pulses of 0.05 ms duration (15 Hz, 50 V). Detrusor strips were perfused with 0.1, 1, 3 or 10 mM taurine during the ischaemia-like exposure and the first 30 min of reperfusion. Taurine (1 and 3 mM) significantly improved the response of the strips to EFS both at the end of ischaemia and reperfusion. On the contrary, neither 0.1 nor 10 mM taurine had significant effects. It is concluded that taurine can partially counteract the ischaemia-reperfusion injury in the guinea-pig urinary bladder.
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Affiliation(s)
- F Pessina
- Istituto di Scienze Farmacologiche, Siena, Italia
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Marabini M, Stopponi R, Matteucci G, Pettinari L, Surano E, Marcucci F, Siracusa A. Reported diagnosis of previous asthma in a sample of the Italian general population. Monaldi Arch Chest Dis 2001; 56:299-303. [PMID: 11770208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
In this cross-sectional study we describe the prevalence and characteristics of subjects who self-reported a diagnosis of previous asthma in a sample of the Italian general population. We chose a wide age range (3-69 yrs) in order to obtain data over a large spectrum of the population. Interviews were conducted in 1,038 subjects by trained physicians using a modified version of the American Thoracic Society and National Heart & Lung Institute--Division of Lung Disease questionnaire proposed in 1978 (ATS-DLD-78). 791 subjects underwent skin prick tests for 7 common aeroallergens; 422 subjects underwent spirometry and 212 methacholine challenge tests. Cumulative prevalence of asthma was 7.9% (82/1038). Previous asthma (PA) was reported by 29 (35.4%) of the subjects, who said they had been but were no longer asthmatic; 65.5% of these claimed that PA had developed at or before the age of 14 yrs. No significant differences emerged in sex, age, family and personal history of atopy, and size of skin test reaction in subjects with PA compared to those with current asthma (CA). Although the difference was not statistically significant, the latter tended to be lifetime nonsmokers while subjects with PA were more often current smokers. Age at onset of asthma was significantly higher in subjects with CA than in subjects with PA (24.6 +/- 20 yrs vs. 12.0 +/- 15.0 yrs, p = 0.005). Bronchial hyperreactivity was present in 37.5% of subjects with PA, while forced expiratory volume in 1 sec (FEV1) was within normal limits in all. In conclusion, in this sample of the Italian population, PA was reported by about 1/3 of the asthmatic subjects, most of whom were atopic. Lung function was within normal limits in all, but bronchial hyperreactivity persisted in 1/3 subjects.
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Affiliation(s)
- M Marabini
- Department of Clinical and Experimental Medicine, Occupational Medicine and Toxicology Section, University of Perugia, 06126 Perugia, Italy.
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Matteucci G, Rossini P, Arcangeli A, De Falco G, Fonti P, Guerzoni S. Organic pollution in a Ramsar site (Piallassa Baiona, northern Adriatic Sea). Ann Chim 2001; 91:445-57. [PMID: 11554183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
A core collected in the Piallassa Baiona lagoon, a salt-marsh area already studied for Hg contamination related to nearby industrial sites, was analysed for organic micropollutants. Surface sediments show high concentrations of total PCBs (1148 ng g-1), PCDD/Fs (64 ng g-1) and PAHs (4801 ng g-1). According to a sedimentation rate of 0.4 cm y-1, the high increases in total PAH, PCB and PCDD/F concentrations began in the 1960s and peaked in the 1970s, in parallel with the highest Hg concentrations. Instead, the recent contamination, which primarily involves PCBs and PCDD/Fs, has been observed to be unrelated to Hg concentrations. Organic micropollutant concentrations in the sample core were compared with the sediment quality criteria provided by international guidelines, and revealed high toxic potential. This heavy contamination was also confirmed by comparison with similar environments, particularly the Lagoon of Venice. Further investigations are needed to understand better the sources of the recent contamination and to explain the different transfer pathways involved during sedimentation of the "old" material, dumped 20-30 years ago.
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Affiliation(s)
- G Matteucci
- Istituto di Geologia Marina, Consiglio Nazionale delle Ricerche, Via Gobetti 101, 40129 Bologna, Italy.
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Giani M, Boldrin A, Matteucci G, Frascari F, Gismondi M, Rabitti S. Downward fluxes of particulate carbon, nitrogen and phosphorus in the north-western Adriatic sea. Sci Total Environ 2001; 266:125-134. [PMID: 11258808 DOI: 10.1016/s0048-9697(00)00744-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Downward fluxes of particles, organic carbon, total nitrogen and total phosphorus and the composition of the settled particulate matter were determined in the north-western Adriatic Sea at two coastal sites influenced by the outflows of the Po and Adige rivers and one offshore site. Vertical fluxes were strongly influenced by resuspension processes in addition to the primary flux and advection. The resuspended material contributed on average 34-43% of the total matter sedimented in the near bottom traps in coastal waters. Net annual vertical fluxes (due to primary flux and advection) of organic carbon, total nitrogen and phosphorus in the coastal stations were: 71-97 g C m(-2) year(-1), 8-14 g N m(-2) year(-1) and 2.1-2.3 g P m(-2) year(-1), with the highest values recorded at the station off the Po river delta. The offshore site was characterised by net annual fluxes of particulates, C, N and P approximately one order of magnitude lower than the above. The carbon export to the bottom was limited in the warm seasons when it constituted only 2-9% of primary production, due to high recycling and utilisation in the upper layer of the water column, increasing up to 8-18% in winter because of the instability of the water column and low biological utilisation.
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Affiliation(s)
- M Giani
- Istituto Centrale per la Ricerca, Applicata at Mare, Brondolo, Chioggia, Italy.
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Miserocchi S, Bellucci LG, Marcaccio M, Matteucci G, Landuzzi V, Quarantotto G, Rovatti G. Sediment composition and normalisation procedures: an example from a QUASH project sediment exercise. J Environ Monit 2000; 2:529-33. [PMID: 11254061 DOI: 10.1039/b002760j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The QUASH UE-Project was designed to assess the reliability of normalisation approaches to compensate the influence of natural process affecting the distribution and concentration of contaminants in sediment. The focus of this paper was to test the influence on normalisation procedures of an inorganic matrix using a sample collected in the Venice Lagoon, Italy.
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Affiliation(s)
- S Miserocchi
- Istituto di Geologia Marina, CNR, Bologna, Italy.
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