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Ji B, Yu K, Wang F, Ge H, Liu J. Simulation and prediction of changes in tree species composition in subtropical forests of China using a nonlinear difference equation system model. FRONTIERS IN PLANT SCIENCE 2023; 14:1280126. [PMID: 38046615 PMCID: PMC10690762 DOI: 10.3389/fpls.2023.1280126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023]
Abstract
Changes in tree species composition are one of the key aspects of forest succession. In recent decades, significant changes have occurred in the tree species composition of subtropical forests in China, with a decrease in coniferous trees and an increase in broad-leaved trees. This study focuses on Zhejiang Province, located in the subtropical region of China, and utilizes seven inventories from the National Continuous Forest Inventory (NCFI) System spanning 30 years (1989-2019) for modeling and analysis. We categorized tree species into three groups: pine, fir, and broadleaf. We used the proportion of biomass in a sample plot as a measure of the relative abundance of each tree species group. A novel nonlinear difference equation system (NDES) model was proposed. A NDES model was established based on two consecutive survey datasets. A total of six models were established in this study. The results indicated that during the first two re-examination periods (1989-1994, 1994-1999), there was significant fluctuation in the trend of tree species abundance, with no consistent pattern of change. During the latter four re-examination periods (1999-2004, 2004-2009, 2009-2014, 2014-2019), a consistent trend was observed, whereby the abundance of the pine group and the fir group decreased while the abundance of the broad-leaved group increased. Moreover, over time, this pattern became increasingly stable. Although the abundances of the pine group and the fir group have been steadily declining, neither group is expected to become extinct. The NDES model not only facilitates short-term, medium-term, and even long-term predictions but also employs limit analysis to reveal currently obscure changing trends in tree species composition.
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Affiliation(s)
- Biyong Ji
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- Zhejiang Forest Resources Monitoring Center, Hangzhou, China
- University Key Lab for Geomatics Technology and Optimize Resource Utilization in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Kunyong Yu
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- University Key Lab for Geomatics Technology and Optimize Resource Utilization in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Fan Wang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- University Key Lab for Geomatics Technology and Optimize Resource Utilization in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hongli Ge
- College of Environment and Resources Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Jian Liu
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- University Key Lab for Geomatics Technology and Optimize Resource Utilization in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, China
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2
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Requena Suarez D, Rozendaal DMA, De Sy V, Decuyper M, Málaga N, Durán Montesinos P, Arana Olivos A, De la Cruz Paiva R, Martius C, Herold M. Forest disturbance and recovery in Peruvian Amazonia. GLOBAL CHANGE BIOLOGY 2023; 29:3601-3621. [PMID: 36997337 DOI: 10.1111/gcb.16695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 01/20/2023] [Accepted: 02/24/2023] [Indexed: 06/06/2023]
Abstract
Amazonian forests function as biomass and biodiversity reservoirs, contributing to climate change mitigation. While they continuously experience disturbance, the effect that disturbances have on biomass and biodiversity over time has not yet been assessed at a large scale. Here, we evaluate the degree of recent forest disturbance in Peruvian Amazonia and the effects that disturbance, environmental conditions and human use have on biomass and biodiversity in disturbed forests. We integrate tree-level data on aboveground biomass (AGB) and species richness from 1840 forest plots from Peru's National Forest Inventory with remotely sensed monitoring of forest change dynamics, based on disturbances detected from Landsat-derived Normalized Difference Moisture Index time series. Our results show a clear negative effect of disturbance intensity tree species richness. This effect was also observed on AGB and species richness recovery values towards undisturbed levels, as well as on the recovery of species composition towards undisturbed levels. Time since disturbance had a larger effect on AGB than on species richness. While time since disturbance has a positive effect on AGB, unexpectedly we found a small negative effect of time since disturbance on species richness. We estimate that roughly 15% of Peruvian Amazonian forests have experienced disturbance at least once since 1984, and that, following disturbance, have been increasing in AGB at a rate of 4.7 Mg ha-1 year-1 during the first 20 years. Furthermore, the positive effect of surrounding forest cover was evident for both AGB and its recovery towards undisturbed levels, as well as for species richness. There was a negative effect of forest accessibility on the recovery of species composition towards undisturbed levels. Moving forward, we recommend that forest-based climate change mitigation endeavours consider forest disturbance through the integration of forest inventory data with remote sensing methods.
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Affiliation(s)
- Daniela Requena Suarez
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University & Research, Wageningen, The Netherlands
| | - Danaë M A Rozendaal
- Plant Production Systems Group, Wageningen University & Research, Wageningen, The Netherlands
- Centre for Crop Systems Analysis, Wageningen University & Research, Wageningen, The Netherlands
| | - Veronique De Sy
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University & Research, Wageningen, The Netherlands
| | - Mathieu Decuyper
- Forest Ecology and Forest Management Group, Wageningen University & Research, Wageningen, The Netherlands
- Centre for International Forestry Research and World Agroforestry (CIFOR-ICRAF), Nairobi, Kenya
| | - Natalia Málaga
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University & Research, Wageningen, The Netherlands
| | - Patricia Durán Montesinos
- Servicio Nacional Forestal y de Fauna Silvestre (SERFOR), Ministerio de Desarrollo Agrario y Riego (MIDAGRI), Lima, Peru
| | - Alexs Arana Olivos
- Servicio Nacional Forestal y de Fauna Silvestre (SERFOR), Ministerio de Desarrollo Agrario y Riego (MIDAGRI), Lima, Peru
| | - Ricardo De la Cruz Paiva
- Servicio Nacional Forestal y de Fauna Silvestre (SERFOR), Ministerio de Desarrollo Agrario y Riego (MIDAGRI), Lima, Peru
| | - Christopher Martius
- Center for International Forestry Research (CIFOR) Germany gGmbH, Bonn, Germany
| | - Martin Herold
- Laboratory of Geo-Information Science and Remote Sensing, Wageningen University & Research, Wageningen, The Netherlands
- Section 1.4 Remote Sensing and Geoinformatics, Helmholtz Center Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
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3
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Rangel Pinagé E, Keller M, Peck CP, Longo M, Duffy P, Csillik O. Effects of forest degradation classification on the uncertainty of aboveground carbon estimates in the Amazon. CARBON BALANCE AND MANAGEMENT 2023; 18:2. [PMID: 36786979 PMCID: PMC9926651 DOI: 10.1186/s13021-023-00221-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Tropical forests are critical for the global carbon budget, yet they have been threatened by deforestation and forest degradation by fire, selective logging, and fragmentation. Existing uncertainties on land cover classification and in biomass estimates hinder accurate attribution of carbon emissions to specific forest classes. In this study, we used textural metrics derived from PlanetScope images to implement a probabilistic classification framework to identify intact, logged and burned forests in three Amazonian sites. We also estimated biomass for these forest classes using airborne lidar and compared biomass uncertainties using the lidar-derived estimates only to biomass uncertainties considering the forest degradation classification as well. RESULTS Our classification approach reached overall accuracy of 0.86, with accuracy at individual sites varying from 0.69 to 0.93. Logged forests showed variable biomass changes, while burned forests showed an average carbon loss of 35%. We found that including uncertainty in forest degradation classification significantly increased uncertainty and decreased estimates of mean carbon density in two of the three test sites. CONCLUSIONS Our findings indicate that the attribution of biomass changes to forest degradation classes needs to account for the uncertainty in forest degradation classification. By combining very high-resolution images with lidar data, we could attribute carbon stock changes to specific pathways of forest degradation. This approach also allows quantifying uncertainties of carbon emissions associated with forest degradation through logging and fire. Both the attribution and uncertainty quantification provide critical information for national greenhouse gas inventories.
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Affiliation(s)
| | - Michael Keller
- International Institute of Tropical Forestry, USDA Forest Service, Río Piedras, 00926 Puerto Rico
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
| | | | - Marcos Longo
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Paul Duffy
- Neptune and Company, Inc, Lakewood, CO 80215 USA
| | - Ovidiu Csillik
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA
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4
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Lapola DM, Pinho P, Barlow J, Aragão LEOC, Berenguer E, Carmenta R, Liddy HM, Seixas H, Silva CVJ, Silva-Junior CHL, Alencar AAC, Anderson LO, Armenteras D, Brovkin V, Calders K, Chambers J, Chini L, Costa MH, Faria BL, Fearnside PM, Ferreira J, Gatti L, Gutierrez-Velez VH, Han Z, Hibbard K, Koven C, Lawrence P, Pongratz J, Portela BTT, Rounsevell M, Ruane AC, Schaldach R, da Silva SS, von Randow C, Walker WS. The drivers and impacts of Amazon forest degradation. Science 2023; 379:eabp8622. [PMID: 36701452 DOI: 10.1126/science.abp8622] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Approximately 2.5 × 106 square kilometers of the Amazon forest are currently degraded by fire, edge effects, timber extraction, and/or extreme drought, representing 38% of all remaining forests in the region. Carbon emissions from this degradation total up to 0.2 petagrams of carbon per year (Pg C year-1), which is equivalent to, if not greater than, the emissions from Amazon deforestation (0.06 to 0.21 Pg C year-1). Amazon forest degradation can reduce dry-season evapotranspiration by up to 34% and cause as much biodiversity loss as deforestation in human-modified landscapes, generating uneven socioeconomic burdens, mainly to forest dwellers. Projections indicate that degradation will remain a dominant source of carbon emissions independent of deforestation rates. Policies to tackle degradation should be integrated with efforts to curb deforestation and complemented with innovative measures addressing the disturbances that degrade the Amazon forest.
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Affiliation(s)
- David M Lapola
- Laboratório de Ciência do Sistema Terrestre - LabTerra, Centro de Pesquisas Meteorológicas e Climáticas Aplicadas à Agricultura - CEPAGRI, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Patricia Pinho
- Instituto de Pesquisas Ambientais da Amazônia, Brasília, DF, Brazil
| | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Luiz E O C Aragão
- Instituto Nacional de Pesquisas Espaciais, São José dos Campos, SP, Brazil.,Geography, University of Exeter, Exeter, UK
| | - Erika Berenguer
- Lancaster Environment Centre, Lancaster University, Lancaster, UK.,Environmental Change Institute, University of Oxford, Oxford, UK
| | | | - Hannah M Liddy
- Columbia Climate School, Columbia University, New York, NY, USA.,NASA Goddard Institute for Space Studies, New York, NY, USA
| | - Hugo Seixas
- Laboratório de Ciência do Sistema Terrestre - LabTerra, Centro de Pesquisas Meteorológicas e Climáticas Aplicadas à Agricultura - CEPAGRI, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Camila V J Silva
- Instituto de Pesquisas Ambientais da Amazônia, Brasília, DF, Brazil.,Lancaster Environment Centre, Lancaster University, Lancaster, UK.,BeZero Carbon Ltd, London, UK
| | - Celso H L Silva-Junior
- Institute of Environment and Sustainability, University of California, Los Angeles, CA, USA.,Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.,Programa de Pós-graduação em Biodiversidade e Conservação, Universidade Federal do Maranhão - UFMA, São Luís, MA, Brazil
| | - Ane A C Alencar
- Instituto de Pesquisas Ambientais da Amazônia, Brasília, DF, Brazil
| | - Liana O Anderson
- Centro Nacional de Monitoramento e Alertas de Desastres Naturais, São José dos Campos, SP, Brazil
| | | | | | - Kim Calders
- Computational & Applied Vegetation Ecology Laboratory, Department of Environment, Ghent University, Belgium.,School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | | | | | | | - Bruno L Faria
- Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais, Diamantina, MG, Brazil
| | | | - Joice Ferreira
- Empresa Brasileira de Pesquisa Agropecuária, Belém, PA, Brazil
| | - Luciana Gatti
- Instituto Nacional de Pesquisas Espaciais, São José dos Campos, SP, Brazil
| | | | | | - Kathleen Hibbard
- National Aeronautics and Space Administration Headquarters, Washington, DC, USA
| | - Charles Koven
- Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Peter Lawrence
- National Center for Atmospheric Research, Boulder, CO, USA
| | - Julia Pongratz
- Max Planck Institute for Meteorology, Hamburg, Germany.,Ludwig-Maximilians University of Munich, Munich, Germany
| | | | - Mark Rounsevell
- Karlsruhe Institute of Technology, Karlsruhe, Germany.,University of Edinburgh, Edinburgh, UK
| | - Alex C Ruane
- NASA Goddard Institute for Space Studies, New York, NY, USA
| | | | | | - Celso von Randow
- Instituto Nacional de Pesquisas Espaciais, São José dos Campos, SP, Brazil
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5
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Stas SM, Spracklen BD, Willetts PD, Le TC, Tran HD, Le TT, Ngo DT, Le AV, Le HT, Rutishauser E, Schwendike J, Marsham JH, van Kuijk M, Jew EKK, Phillips OL, Spracklen DV. Implications of tropical cyclones on damage and potential recovery and restoration of logged forests in Vietnam. Philos Trans R Soc Lond B Biol Sci 2023; 378:20210081. [PMID: 36373926 PMCID: PMC9661952 DOI: 10.1098/rstb.2021.0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
Many natural forests in Southeast Asia are degraded following decades of logging. Restoration of these forests is delayed by ongoing logging and tropical cyclones, but the implications for recovery are largely uncertain. We analysed meteorological, satellite and forest inventory plot data to assess the effect of Typhoon Doksuri, a major tropical cyclone, on the forest landscapes of central Vietnam consisting of natural forests and plantations. We estimated the return period for a cyclone of this intensity to be 40 years. Plantations were almost twice as likely to suffer cyclone damage compared to natural forests. Logged natural forests (9-12 years after cessation of government-licensed logging) were surveyed before and after the storm with 2 years between measurements and remained a small biomass carbon sink (0.1 ± 0.3 Mg C ha-1 yr-1) over this period. The cyclone reduced the carbon sink of recovering natural forests by an average of 0.85 Mg C ha-1 yr-1, less than the carbon loss due to ongoing unlicensed logging. Restoration of forest landscapes in Southeast Asia requires a reduction in unlicensed logging and prevention of further conversion of degraded natural forests to plantations, particularly in landscapes prone to tropical cyclones where natural forests provide a resilient carbon sink. This article is part of the theme issue 'Understanding forest landscape restoration: reinforcing scientific foundations for the UN Decade on Ecosystem Restoration'.
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Affiliation(s)
- S. M. Stas
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
| | - B. D. Spracklen
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
| | - P. D. Willetts
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
| | - T. C. Le
- Viet Nature Conservation Centre, PO Box 89, No. 6 Dinh Le Street, Hanoi, Viet Nam
| | - H. D. Tran
- Viet Nature Conservation Centre, PO Box 89, No. 6 Dinh Le Street, Hanoi, Viet Nam
| | - T. T. Le
- Viet Nature Conservation Centre, PO Box 89, No. 6 Dinh Le Street, Hanoi, Viet Nam
| | - D. T. Ngo
- Center for Agriculture Forestry Research and Development, University of Agriculture and Forestry, Hue University, 102 Phung Hung Street, Hue, Viet Nam
| | - A. V. Le
- Center for Agriculture Forestry Research and Development, University of Agriculture and Forestry, Hue University, 102 Phung Hung Street, Hue, Viet Nam
| | - H. T. Le
- Center for Agriculture Forestry Research and Development, University of Agriculture and Forestry, Hue University, 102 Phung Hung Street, Hue, Viet Nam
| | - E. Rutishauser
- Info Flora, Conservatory and Botanical Gardens, PO Box 71, CH-1292 Chambésy-Genève, Switzerland
| | - J. Schwendike
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
| | - J. H. Marsham
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
| | - M. van Kuijk
- Ecology and Biodiversity, Institute of Environmental Biology, Utrecht University, PO Box 80084, 3508 TB Utrecht, The Netherlands
| | - E. K. K. Jew
- University of York, Heslington, York YO8 5DD, UK
| | - O. L. Phillips
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - D. V. Spracklen
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
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6
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Mapping the Spatial Distribution of Fern Thickets and Vine-Laden Forests in the Landscape of Bornean Logged-Over Tropical Secondary Rainforests. REMOTE SENSING 2022. [DOI: 10.3390/rs14143354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Forest degradation has been most frequently defined as an anthropogenic reduction in biomass compared with reference biomass in extant forests. However, so-defined “degraded forests” may widely vary in terms of recoverability. A prolonged loss of recoverability, commonly described as a loss of resilience, poses a true threat to global environments. In Bornean logged-over forests, dense thickets of ferns and vines have been observed to cause arrested secondary succession, and their area may indicate the extent of slow biomass recovery. Therefore, we aimed to discriminate the fern thickets and vine-laden forests from those logged-over forests without dense ferns and vines, as well as mapping their distributions, with the aid of Landsat-8 satellite imagery and machine learning modeling. During the process, we tested whether the gray-level co-occurrence matrix (GLCM) textures of Landsat data and Sentinel-1 C-band SAR data were helpful for this classification. Our study sites were Deramakot and Tangkulap Forest Reserves—commercial production forests in Sabah, Malaysian Borneo. First, we flew drones and obtained aerial images that were used as ground truth for the supervised classification. Subsequently, a machine-learning model with a gradient-boosting decision tree was iteratively tested in order to derive the best model for the classification of the vegetation. Finally, the best model was extrapolated to the entire forest reserve and used to map three classes of vegetation (fern thickets, vine-laden forests, and logged-over forests without ferns and vines) and two non-vegetation classes (bare soil and open water). The overall classification accuracy of the best model was 86.6%; however, by combining the fern and vine classes into the same category, the accuracy was improved to 91.5%. The GLCM texture variables were especially effective at separating fern/vine vegetation from the non-degraded forest, but the SAR data showed a limited effect. Our final vegetation map showed that 30.7% of the reserves were occupied by ferns or vines, which may lead to arrested succession. Considering that our study site was once certified as a well-managed forest, the area of degraded forests with a high risk of loss of resilience is expected to be much broader in other Bornean production forests.
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7
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Finlayson C, Roopsind A, Griscom BW, Edwards DP, Freckleton RP. Removing climbers more than doubles tree growth and biomass in degraded tropical forests. Ecol Evol 2022; 12:e8758. [PMID: 35356565 PMCID: PMC8948070 DOI: 10.1002/ece3.8758] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 02/03/2022] [Accepted: 03/09/2022] [Indexed: 11/24/2022] Open
Abstract
Huge areas of tropical forests are degraded, reducing their biodiversity, carbon, and timber value. The recovery of these degraded forests can be significantly inhibited by climbing plants such as lianas. Removal of super‐abundant climbers thus represents a restoration action with huge potential for application across the tropics. While experimental studies largely report positive impacts of climber removal on tree growth and biomass accumulation, the efficacy of climber removal varies widely, with high uncertainty as to where and how to apply the technique. Using meta‐analytic techniques, we synthesize results from 26 studies to quantify the efficacy of climber removal for promoting tree growth and biomass accumulation. We find that climber removal increases tree growth by 156% and biomass accumulation by 209% compared to untreated forest, and that efficacy remains for at least 19 years. Extrapolating from these results, climber removal could sequester an additional 32 Gigatons of CO2 over 10 years, at low cost, across regrowth, and production forests. Our analysis also revealed that climber removal studies are concentrated in the Neotropics (N = 22), relative to Africa (N = 2) and Asia (N = 2), preventing our study from assessing the influence of region on removal efficacy. While we found some evidence that enhancement of tree growth and AGB accumulation varies across disturbance context and removal method, but not across climate, the number and geographical distribution of studies limits the strength of these conclusions. Climber removal could contribute significantly to reducing global carbon emissions and enhancing the timber and biomass stocks of degraded forests, ultimately protecting them from conversion. However, we urgently need to assess the efficacy of removal outside the Neotropics, and consider the potential negative consequences of climber removal under drought conditions and for biodiversity.
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Affiliation(s)
- Catherine Finlayson
- Ecology and Evolutionary Biology School of Biosciences University of Sheffield Sheffield UK
| | - Anand Roopsind
- Center for Natural Climate Solutions Conservation International Arlington Virginia USA
| | - Bronson W. Griscom
- Center for Natural Climate Solutions Conservation International Arlington Virginia USA
| | - David P. Edwards
- Ecology and Evolutionary Biology School of Biosciences University of Sheffield Sheffield UK
| | - Robert P. Freckleton
- Ecology and Evolutionary Biology School of Biosciences University of Sheffield Sheffield UK
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8
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Thomas E, Jansen M, Chiriboga-Arroyo F, Wadt LHO, Corvera-Gomringer R, Atkinson RJ, Bonser SP, Velasquez-Ramirez MG, Ladd B. Habitat Quality Differentiation and Consequences for Ecosystem Service Provision of an Amazonian Hyperdominant Tree Species. FRONTIERS IN PLANT SCIENCE 2021; 12:621064. [PMID: 33868327 PMCID: PMC8044455 DOI: 10.3389/fpls.2021.621064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
Ecosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB accumulation in a given area of forest, this is not necessarily the case for fruit production.
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Affiliation(s)
| | - Merel Jansen
- Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, Ecosystem Management, ETH Zürich, Zurich, Switzerland
- Center for International Forestry Research -CIFOR, Lima, Peru
| | - Fidel Chiriboga-Arroyo
- Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, Ecosystem Management, ETH Zürich, Zurich, Switzerland
| | | | | | | | - Stephen P. Bonser
- School of Biological, Earth and Environmental Science, Ecology & Evolution Research Centre, University of New South Wales, Sydney, NSW, Australia
| | | | - Brenton Ladd
- Escuela de Agroforestería, Universidad Científica del Sur, Lima, Peru
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9
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Nunes MH, Jucker T, Riutta T, Svátek M, Kvasnica J, Rejžek M, Matula R, Majalap N, Ewers RM, Swinfield T, Valbuena R, Vaughn NR, Asner GP, Coomes DA. Recovery of logged forest fragments in a human-modified tropical landscape during the 2015-16 El Niño. Nat Commun 2021; 12:1526. [PMID: 33750781 PMCID: PMC7943823 DOI: 10.1038/s41467-020-20811-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 12/02/2020] [Indexed: 01/29/2023] Open
Abstract
The past 40 years in Southeast Asia have seen about 50% of lowland rainforests converted to oil palm and other plantations, and much of the remaining forest heavily logged. Little is known about how fragmentation influences recovery and whether climate change will hamper restoration. Here, we use repeat airborne LiDAR surveys spanning the hot and dry 2015-16 El Niño Southern Oscillation event to measure canopy height growth across 3,300 ha of regenerating tropical forests spanning a logging intensity gradient in Malaysian Borneo. We show that the drought led to increased leaf shedding and branch fall. Short forest, regenerating after heavy logging, continued to grow despite higher evaporative demand, except when it was located close to oil palm plantations. Edge effects from the plantations extended over 300 metres into the forests. Forest growth on hilltops and slopes was particularly impacted by the combination of fragmentation and drought, but even riparian forests located within 40 m of oil palm plantations lost canopy height during the drought. Our results suggest that small patches of logged forest within plantation landscapes will be slow to recover, particularly as ENSO events are becoming more frequent. It is unclear whether tropical forest fragments within plantation landscapes are resilient to drought. Here the authors analyse LiDAR and ground-based data from the 2015-16 El Niño event across a logging intensity gradient in Borneo. Although regenerating forests continued to grow, canopy height near oil palm plantations decreased, and a strong edge effect extended up to at least 300 m away.
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Affiliation(s)
- Matheus Henrique Nunes
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK. .,Department of Geosciences and Geography, University of Helsinki, Helsinki, 00014, Finland.
| | - Tommaso Jucker
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK.,School of Biological Sciences, University of Bristol, Bristol, BS8 1TH, UK
| | - Terhi Riutta
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK.,School of Geography and the Environment, Environmental Change Institute, University of Oxford, Oxford, OX1 3QY, UK
| | - Martin Svátek
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Jakub Kvasnica
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Martin Rejžek
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00, Brno, Czech Republic
| | - Radim Matula
- Department of Forest Ecology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague, 165 00, Czech Republic
| | | | - Robert M Ewers
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, SL5 7PY, UK
| | - Tom Swinfield
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK
| | - Rubén Valbuena
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK.,School of Natural Sciences, Bangor University, Gwynedd, LL57 2UW, UK
| | - Nicholas R Vaughn
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe AZ and Hilo, Tempe, HI, USA
| | - Gregory P Asner
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe AZ and Hilo, Tempe, HI, USA
| | - David A Coomes
- Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Cambridge, CB2 3QZ, UK.
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10
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Impacts of Future Crop Tree Release Treatments on Forest Carbon as REDD+ Mitigation Benefits. LAND 2020. [DOI: 10.3390/land9100394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Sustainable forest management activities, such as future crop tree (FCT) release treatments, became part of the REDD+ strategy to avoid carbon emissions from forests. FCT release treatments are intended to achieve increased growth of FCTs by removing competitor trees. This initially leads to a reduction of the forest carbon pool and represents a carbon debt. We estimated that the time it takes for FCTs to offset the carbon debt through increased growth on experimental sites of 10 km² in Belize, Guyana, Suriname, and Trinidad and Tobago. We further investigated whether the costs of treatment can be compensated by the generated financial carbon benefits. An average of 2.3 FCT per hectare were released through the removal of an average of 3.3 competitors per hectare. This corresponds to an average above ground biomass (AGB) deficit of 2.3 Mg FCT−1. Assuming a 30% increase in growth, the FCT would need on average 130 years to offset the carbon loss. For carbon prices from US$ 5 to 100 Mg CO2e−1 an additional increment between 0.6 and 22.7 Mg tree−1 would be required to cover the treatment costs of US$ 4.2 to 8.4 FCT−1. Assuming a carbon price of US$ 10 Mg CO2e−1, the additional increment required would be between 5.8 and 11.4 Mg tree−1, thus exceeding the biological growth potential of most individual trees. The release of FCTs does not ensure an increase in forest carbon stocks, and refinancing of treatment costs is problematic.
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11
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Ecosystem Service Multifunctionality: Decline and Recovery Pathways in the Amazon and Chocó Lowland Rainforests. SUSTAINABILITY 2020. [DOI: 10.3390/su12187786] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The balance between the supply of multiple ecosystem services (ES) and the fulfillment of society demands is a challenge, especially in the tropics where different land use transition phases emerge. These phases are characterized by either a decline (from intact old-growth to logged forests) or a recovery of ES (successional forests, plantations, and agroforestry systems). This highlights the importance of ecosystem service multifunctionality (M) assessments across these land use transition phases as a basis for forest management and conservation. We analyzed synergies and trade-offs of ES to identify potential umbrella ES. We also evaluated the impact of logging activities in the decline of ES and M, and the influence of three recovery phases in the supply of ES and M. We installed 156 inventory plots (1600 m2) in the Ecuadorian Central Amazon and the Chocó. We estimated indicators for provisioning, regulating, supporting services and biodiversity. M indicator was estimated using the multifunctional average approach. Our results show that above-ground carbon stocks can be considered as an umbrella service as it presented high synergetic relations with M and various ES. We observed that logging activities caused a decline of 16–18% on M, with high impacts for timber volume and above-ground carbon stocks, calling for more sustainable practices with stricter post-harvesting control to avoid a higher depletion of ES and M. From the recovery phases it is evident that, successional forests offer the highest level of M, evidencing high potential to recover multiple ES after human disturbance.
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12
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Hu J, Herbohn J, Chazdon RL, Baynes J, Vanclay JK. Above-ground biomass recovery following logging and thinning over 46 years in an Australian tropical forest. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 734:139098. [PMID: 32473448 DOI: 10.1016/j.scitotenv.2020.139098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Managed tropical forests are a globally important carbon pool, but the effects of logging and thinning intensities on long-term biomass dynamics are poorly known. We investigated the demographic mechanisms of above-ground biomass recovery over 48 years in an Australian tropical forest following four silvicultural treatments: selective logging only as a control and selective logging followed by low-, medium- and high-intensity thinning. Initial biomass recovery rates following thinning were poor predictors of the long-term changes. Initial biomass recovery from 1969 to 1973 was slow and was largely concentrated on an increase in the biomass of residual stems. From 1973 to 1997, above ground biomass (AGB) increased almost linearly, with a similar slope for all sites. From 1997 to 2015, the rate of biomass accumulation slowed, especially for the L treatment. All thinning treatments stimulated more recruitment and regrowth of non-harvested remaining trees compared to the untreated control. Biomass at both the low and medium intensity treatments has almost fully recovered to 98% and 97% of pre-logging biomass levels respectively. The predicted times of complete above-ground biomass recovery for the logging only and high intensity treatments are 55 and 77 years respectively. The slower biomass recovery at the logging only site was largely due to increased mortality in the last measurement period. The slower recovery of the high intensity site was due to a combination of a higher initial reduction in biomass from thinning and the increased mortality in the last measurement period. The high mortality rates in the most recent measurement period are likely due to the impacts of two cyclones that impacted the study site. Our results suggest that it will take at least around 50 years for this site to recover to its pre-harvest biomass, much longer than many of the cutting cycles currently used in tropical forest management.
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Affiliation(s)
- Jing Hu
- School of Agriculture and Food Sciences, the University of Queensland, St Lucia, QLD 4072, Australia.
| | - John Herbohn
- School of Agriculture and Food Sciences, the University of Queensland, St Lucia, QLD 4072, Australia; Tropical Forests and People Research Centre, the University of Sunshine Coast, Maroochydore, QLD 4558, Australia
| | - Robin L Chazdon
- Tropical Forests and People Research Centre, the University of Sunshine Coast, Maroochydore, QLD 4558, Australia
| | - Jack Baynes
- Tropical Forests and People Research Centre, the University of Sunshine Coast, Maroochydore, QLD 4558, Australia
| | - Jerome K Vanclay
- School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
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13
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Philipson CD, Cutler MEJ, Brodrick PG, Asner GP, Boyd DS, Moura Costa P, Fiddes J, Foody GM, van der Heijden GMF, Ledo A, Lincoln PR, Margrove JA, Martin RE, Milne S, Pinard MA, Reynolds G, Snoep M, Tangki H, Sau Wai Y, Wheeler CE, Burslem DFRP. Active restoration accelerates the carbon recovery of human-modified
tropical forests. Science 2020; 369:838-841. [DOI: 10.1126/science.aay4490] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 03/03/2020] [Accepted: 06/19/2020] [Indexed: 11/02/2022]
Abstract
More than half of all tropical forests are degraded by human impacts,
leaving them threatened with conversion to agricultural plantations and
risking substantial biodiversity and carbon losses. Restoration could
accelerate recovery of aboveground carbon density (ACD), but adoption of
restoration is constrained by cost and uncertainties over effectiveness. We
report a long-term comparison of ACD recovery rates between naturally
regenerating and actively restored logged tropical forests. Restoration
enhanced decadal ACD recovery by more than 50%, from 2.9 to 4.4 megagrams
per hectare per year. This magnitude of response, coupled with modal values
of restoration costs globally, would require higher carbon prices to justify
investment in restoration. However, carbon prices required to fulfill the
2016 Paris climate agreement [$40 to $80 (USD) per tonne carbon dioxide
equivalent] would provide an economic justification for tropical forest
restoration.
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Affiliation(s)
- Christopher D. Philipson
- School of Social Sciences, University of Dundee, Dundee DD1 4HN, UK
- Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, Switzerland
| | | | - Philip G. Brodrick
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe, AZ 85287, USA
| | - Gregory P. Asner
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe, AZ 85287, USA
| | - Doreen S. Boyd
- School of Geography, University of Nottingham, Nottingham NG7 2RD, UK
| | - Pedro Moura Costa
- Smith School of Enterprise and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - Joel Fiddes
- Mountainsense Consulting, 7249 Serneus, Switzerland
- WSL Institute for Snow and Avalanche Research, CH-7260 Davos Dorf, Switzerland
| | - Giles M. Foody
- School of Geography, University of Nottingham, Nottingham NG7 2RD, UK
| | | | - Alicia Ledo
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3FX, UK
| | | | - James A. Margrove
- Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, Switzerland
| | - Roberta E. Martin
- Center for Global Discovery and Conservation Science, Arizona State University, Tempe, AZ 85287, USA
| | - Sol Milne
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3FX, UK
| | - Michelle A. Pinard
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3FX, UK
| | - Glen Reynolds
- South East Asia Rainforest Research Partnership, Danum Valley Field Centre, Lahad Datu, Sabah, Malaysia
| | | | - Hamzah Tangki
- Conservation & Environmental Management Division, Yayasan Sabah Group, 88817 Kota Kinabalu, Sabah, Malaysia
| | - Yap Sau Wai
- Conservation & Environmental Management Division, Yayasan Sabah Group, 88817 Kota Kinabalu, Sabah, Malaysia
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14
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Comparison of Statistical Modelling Approaches for Estimating Tropical Forest Aboveground Biomass Stock and Reporting Their Changes in Low-Intensity Logging Areas Using Multi-Temporal LiDAR Data. REMOTE SENSING 2020. [DOI: 10.3390/rs12091498] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Accurately quantifying forest aboveground biomass (AGB) is one of the most significant challenges in remote sensing, and is critical for understanding global carbon sequestration. Here, we evaluate the effectiveness of airborne LiDAR (Light Detection and Ranging) for monitoring AGB stocks and change (ΔAGB) in a selectively logged tropical forest in eastern Amazonia. Specifically, we compare results from a suite of different modelling methods with extensive field data. The calibration AGB values were derived from 85 square field plots sized 50 × 50 m field plots established in 2014 and which were estimated using airborne LiDAR data acquired in 2012, 2014, and 2017. LiDAR-derived metrics were selected based upon Principal Component Analysis (PCA) and used to estimate AGB stock and change. The statistical approaches were: ordinary least squares regression (OLS), and nine machine learning approaches: random forest (RF), several variations of k-nearest neighbour (k-NN), support vector machine (SVM), and artificial neural networks (ANN). Leave-one-out cross-validation (LOOCV) was used to compare performance based upon root mean square error (RMSE) and mean difference (MD). The results show that OLS had the best performance with an RMSE of 46.94 Mg/ha (19.7%) and R² = 0.70. RF, SVM, and ANN were adequate, and all approaches showed RMSE ≤54.48 Mg/ha (22.89%). Models derived from k-NN variations all showed RMSE ≥64.61 Mg/ha (27.09%). The OLS model was thus selected to map AGB across the time-series. The mean (±sd—standard deviation) predicted AGB stock at the landscape level was 229.10 (±232.13) Mg/ha in 2012, 258.18 (±106.53) in 2014, and 240.34 (sd ± 177.00) Mg/ha in 2017, showing the effect of forest growth in the first period and logging in the second period. In most cases, unlogged areas showed higher AGB stocks than logged areas. Our methods showed an increase in AGB in unlogged areas and detected small changes from reduced-impact logging (RIL) activities occurring after 2012. We also detected that the AGB increase in areas logged before 2012 was higher than in unlogged areas. Based on our findings, we expect our study could serve as a basis for programs such as REDD+ and assist in detecting and understanding AGB changes caused by selective logging activities in tropical forests.
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15
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Rüger N, Condit R, Dent DH, DeWalt SJ, Hubbell SP, Lichstein JW, Lopez OR, Wirth C, Farrior CE. Demographic trade-offs predict tropical forest dynamics. Science 2020; 368:165-168. [PMID: 32273463 DOI: 10.1126/science.aaz4797] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/27/2020] [Indexed: 11/02/2022]
Abstract
Understanding tropical forest dynamics and planning for their sustainable management require efficient, yet accurate, predictions of the joint dynamics of hundreds of tree species. With increasing information on tropical tree life histories, our predictive understanding is no longer limited by species data but by the ability of existing models to make use of it. Using a demographic forest model, we show that the basal area and compositional changes during forest succession in a neotropical forest can be accurately predicted by representing tropical tree diversity (hundreds of species) with only five functional groups spanning two essential trade-offs-the growth-survival and stature-recruitment trade-offs. This data-driven modeling framework substantially improves our ability to predict consequences of anthropogenic impacts on tropical forests.
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Affiliation(s)
- Nadja Rüger
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany. .,Department of Economics, University of Leipzig, Grimmaische Straße 12, 04109 Leipzig, Germany.,Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama
| | - Richard Condit
- Field Museum of Natural History, 1400 S. Lake Shore Dr., Chicago, IL 60605, USA.,Morton Arboretum, 4100 Illinois Rte. 53, Lisle, IL 60532, USA
| | - Daisy H Dent
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama.,Biological and Environmental Sciences, University of Stirling, Stirling FK9 4LA, UK
| | - Saara J DeWalt
- Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA
| | - Stephen P Hubbell
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama.,Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095, USA
| | - Jeremy W Lichstein
- Department of Biology, University of Florida, Gainesville, FL 32611, USA
| | - Omar R Lopez
- Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancón, Panama.,Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT), Edificio 209, Clayton, Panama
| | - Christian Wirth
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany.,Systematic Botany and Functional Biodiversity, Institute of Biology, University of Leipzig, Johannisallee 21-23, 04103 Leipzig, Germany.,Max Planck Institute for Biogeochemistry, Hans-Knöll Str. 10, 07745 Jena, Germany
| | - Caroline E Farrior
- Department of Integrative Biology, University of Texas at Austin, Austin, TX 78712, USA
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16
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Gendered Species Preferences Link Tree Diversity and Carbon Stocks in Cacao Agroforest in Southeast Sulawesi, Indonesia. LAND 2020. [DOI: 10.3390/land9040108] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The degree to which the maintenance of carbon (C) stocks and tree diversity can be jointly achieved in production landscapes is debated. C stocks in forests are decreased by logging before tree diversity is affected, while C stocks in monoculture tree plantations increase, but diversity does not. Agroforestry can break this hysteresis pattern, relevant for policies in search of synergy. We compared total C stocks and tree diversity among degraded forest, complex cacao/fruit tree agroforests, simple shade-tree cacao agroforestry, monoculture cacao, and annual crops in the Konawe District, Southeast Sulawesi, Indonesia. We evaluated farmer tree preferences and the utility value of the system for 40 farmers (male and female). The highest tree diversity (Shannon–Wiener H index 2.36) and C stocks (282 Mg C ha−1) were found in degraded forest, followed by cacao-based agroforestry systems (H index ranged from 0.58–0.93 with C stocks of 75–89 Mg ha−1). Male farmers selected timber and fruit tree species with economic benefits as shade trees, while female farmers preferred production for household needs (fruit trees and vegetables). Carbon stocks and tree diversity were positively related (R2 = 0.72). Adding data from across Indonesia (n = 102), agroforestry systems had an intermediate position between forest decline and reforestation responses. Maintaining agroforestry in the landscape allows aboveground C stocks up to 50 Mg ha−1 and reduces biodiversity loss. Agroforestry facilitates climate change mitigation and biodiversity goals to be addressed simultaneously in sustainable production landscapes.
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17
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Requena Suarez D, Rozendaal DMA, De Sy V, Phillips OL, Alvarez‐Dávila E, Anderson‐Teixeira K, Araujo‐Murakami A, Arroyo L, Baker TR, Bongers F, Brienen RJW, Carter S, Cook‐Patton SC, Feldpausch TR, Griscom BW, Harris N, Hérault B, Honorio Coronado EN, Leavitt SM, Lewis SL, Marimon BS, Monteagudo Mendoza A, Kassi N'dja J, N'Guessan AE, Poorter L, Qie L, Rutishauser E, Sist P, Sonké B, Sullivan MJP, Vilanova E, Wang MMH, Martius C, Herold M. Estimating aboveground net biomass change for tropical and subtropical forests: Refinement of IPCC default rates using forest plot data. GLOBAL CHANGE BIOLOGY 2019; 25:3609-3624. [PMID: 31310673 PMCID: PMC6852081 DOI: 10.1111/gcb.14767] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/06/2019] [Indexed: 05/17/2023]
Abstract
As countries advance in greenhouse gas (GHG) accounting for climate change mitigation, consistent estimates of aboveground net biomass change (∆AGB) are needed. Countries with limited forest monitoring capabilities in the tropics and subtropics rely on IPCC 2006 default ∆AGB rates, which are values per ecological zone, per continent. Similarly, research into forest biomass change at a large scale also makes use of these rates. IPCC 2006 default rates come from a handful of studies, provide no uncertainty indications and do not distinguish between older secondary forests and old-growth forests. As part of the 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, we incorporate ∆AGB data available from 2006 onwards, comprising 176 chronosequences in secondary forests and 536 permanent plots in old-growth and managed/logged forests located in 42 countries in Africa, North and South America and Asia. We generated ∆AGB rate estimates for younger secondary forests (≤20 years), older secondary forests (>20 years and up to 100 years) and old-growth forests, and accounted for uncertainties in our estimates. In tropical rainforests, for which data availability was the highest, our ∆AGB rate estimates ranged from 3.4 (Asia) to 7.6 (Africa) Mg ha-1 year-1 in younger secondary forests, from 2.3 (North and South America) to 3.5 (Africa) Mg ha-1 year-1 in older secondary forests, and 0.7 (Asia) to 1.3 (Africa) Mg ha-1 year-1 in old-growth forests. We provide a rigorous and traceable refinement of the IPCC 2006 default rates in tropical and subtropical ecological zones, and identify which areas require more research on ∆AGB. In this respect, this study should be considered as an important step towards quantifying the role of tropical and subtropical forests as carbon sinks with higher accuracy; our new rates can be used for large-scale GHG accounting by governmental bodies, nongovernmental organizations and in scientific research.
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Affiliation(s)
- Daniela Requena Suarez
- Laboratory of Geo‐Information Science and Remote SensingWageningen University and ResearchWageningenThe Netherlands
| | - Danaë M. A. Rozendaal
- Laboratory of Geo‐Information Science and Remote SensingWageningen University and ResearchWageningenThe Netherlands
- Plant Production Systems GroupWageningen University and ResearchWageningenThe Netherlands
- Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Veronique De Sy
- Laboratory of Geo‐Information Science and Remote SensingWageningen University and ResearchWageningenThe Netherlands
| | | | - Esteban Alvarez‐Dávila
- Escuela de Ciencias agrícolas, pecuarias y ambientalesUniversidad Nacional Abierta y a DistanciaBogotaColombia
- Fundación ConVidaMedellínColombia
| | - Kristina Anderson‐Teixeira
- Conservation Ecology CenterSmithsonian Conservation Biology InstituteFront RoyalVRUSA
- Center for Tropical Forest Science‐Forest Global Earth ObservatorySmithsonian Tropical Research InstitutePanamaRepublic of Panama
| | - Alejandro Araujo‐Murakami
- Museo de Historia Natural Noel Kempff MercadoUniversidad Autónoma Gabriel René MorenoSanta CruzBolivia
| | - Luzmila Arroyo
- Universidad Autónoma Gabriel René MorenoSanta CruzBolivia
| | | | - Frans Bongers
- Forest Ecology and Forest Management GroupWageningen University and ResearchWageningenThe Netherlands
| | | | - Sarah Carter
- Laboratory of Geo‐Information Science and Remote SensingWageningen University and ResearchWageningenThe Netherlands
| | | | - Ted R. Feldpausch
- GeographyCollege of Life and Environmental SciencesUniversity of ExeterExeterUK
| | | | | | - Bruno Hérault
- CIRAD, UR Forests & SocietiesUniversity of MontpellierMontpellierFrance
- Institut National Polytechnique Félix Houphouet‐BoignyYamoussoukroIvory Coast
| | | | | | - Simon L. Lewis
- School of GeographyUniversity of LeedsLeedsUK
- Department of GeographyUniversity College LondonLondonUK
| | - Beatriz S. Marimon
- Campus de Nova XavantinaUniversidade do Estado de Mato GrossoNova XavantinaBrazil
| | - Abel Monteagudo Mendoza
- Jardín Botánico de MissouriOxapampaPeru
- Universidad Nacional de San Antonio Abad del CuscoCuscoPeru
| | - Justin Kassi N'dja
- UFR BiosciencesLaboratoire de BotaniqueUniversité Félix Houphouet‐BoignyAbidjanIvory Coast
| | - Anny Estelle N'Guessan
- UFR BiosciencesLaboratoire de BotaniqueUniversité Félix Houphouet‐BoignyAbidjanIvory Coast
| | - Lourens Poorter
- Forest Ecology and Forest Management GroupWageningen University and ResearchWageningenThe Netherlands
| | - Lan Qie
- School of Life SciencesUniversity of LincolnLincolnUK
| | - Ervan Rutishauser
- Center for Tropical Forest Science‐Forest Global Earth ObservatorySmithsonian Tropical Research InstitutePanamaRepublic of Panama
| | - Plinio Sist
- CIRAD, UR Forests & SocietiesUniversity of MontpellierMontpellierFrance
| | - Bonaventure Sonké
- Plant Systematic and Ecology LaboratoryUniversity of YaoundéYaoundéCameroon
| | | | - Emilio Vilanova
- Universidad de Los AndesMéridaVenezuela
- School of Environmental and Forest SciencesUniversity of WashingtonSeattleWAUSA
| | - Maria M. H. Wang
- Department of Animal & Plant SciencesUniversity of SheffieldSheffieldUK
| | | | - Martin Herold
- Laboratory of Geo‐Information Science and Remote SensingWageningen University and ResearchWageningenThe Netherlands
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18
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Fan L, Wigneron JP, Ciais P, Chave J, Brandt M, Fensholt R, Saatchi SS, Bastos A, Al-Yaari A, Hufkens K, Qin Y, Xiao X, Chen C, Myneni RB, Fernandez-Moran R, Mialon A, Rodriguez-Fernandez NJ, Kerr Y, Tian F, Peñuelas J. Satellite-observed pantropical carbon dynamics. NATURE PLANTS 2019; 5:944-951. [PMID: 31358958 DOI: 10.1038/s41477-019-0478-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
Changes in terrestrial tropical carbon stocks have an important role in the global carbon budget. However, current observational tools do not allow accurate and large-scale monitoring of the spatial distribution and dynamics of carbon stocks1. Here, we used low-frequency L-band passive microwave observations to compute a direct and spatially explicit quantification of annual aboveground carbon (AGC) fluxes and show that the tropical net AGC budget was approximately in balance during 2010 to 2017, the net budget being composed of gross losses of -2.86 PgC yr-1 offset by gross gains of -2.97 PgC yr-1 between continents. Large interannual and spatial fluctuations of tropical AGC were quantified during the wet 2011 La Niña year and throughout the extreme dry and warm 2015-2016 El Niño episode. These interannual fluctuations, controlled predominantly by semiarid biomes, were shown to be closely related to independent global atmospheric CO2 growth-rate anomalies (Pearson's r = 0.86), highlighting the pivotal role of tropical AGC in the global carbon budget.
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Affiliation(s)
- Lei Fan
- School of Geographical Sciences, Nanjing University of Information Science and Technology, Nanjing, China
- ISPA, UMR 1391, INRA Nouvelle-Aquitaine, Villenave d'Ornon, France
| | | | - Philippe Ciais
- Laboratoire des Sciences du Climat et de l'Environnement, CEA/CNRS/UVSQ/Université Paris Saclay, Gif-sur-Yvette, France.
| | - Jérôme Chave
- Laboratoire Evolution et Diversité Biologique, Université Paul Sabatier, Toulouse, France
| | - Martin Brandt
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - Rasmus Fensholt
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
| | - Sassan S Saatchi
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
- Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA
| | - Ana Bastos
- Department of Geography, Ludwig-Maximilians Universität, Munich, Germany
| | - Amen Al-Yaari
- ISPA, UMR 1391, INRA Nouvelle-Aquitaine, Villenave d'Ornon, France
| | - Koen Hufkens
- ISPA, UMR 1391, INRA Nouvelle-Aquitaine, Villenave d'Ornon, France
- Department of Applied Ecology and Environmental Biology, Ghent University, Ghent, Belgium
| | - Yuanwei Qin
- Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, OK, USA
| | - Xiangming Xiao
- Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, OK, USA
| | - Chi Chen
- Department of Earth and Environment, Boston University, Boston, MA, USA
| | - Ranga B Myneni
- Department of Earth and Environment, Boston University, Boston, MA, USA
| | | | - Arnaud Mialon
- CESBIO, Université de Toulouse, CNES/CNRS/INRA/IRD/UPS, Toulouse, France
| | | | - Yann Kerr
- CESBIO, Université de Toulouse, CNES/CNRS/INRA/IRD/UPS, Toulouse, France
| | - Feng Tian
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
| | - Josep Peñuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Spain
- CREAF, Cerdanyola del Vallès, Spain
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19
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Odonne G, van den Bel M, Burst M, Brunaux O, Bruno M, Dambrine E, Davy D, Desprez M, Engel J, Ferry B, Freycon V, Grenand P, Jérémie S, Mestre M, Molino JF, Petronelli P, Sabatier D, Hérault B. Long-term influence of early human occupations on current forests of the Guiana Shield. Ecology 2019; 100:e02806. [PMID: 31257578 DOI: 10.1002/ecy.2806] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 05/29/2019] [Accepted: 06/13/2019] [Indexed: 11/08/2022]
Abstract
To decipher the long-term influences of pre-Columbian land occupations on contemporary forest structure, diversity, and functioning in Amazonia, most of the previous research focused on the alluvial plains of the major rivers of the Amazon basin. Terra firme, that is, nonflooded forests, particularly from the Guiana Shield, are yet to be explored. In this study, we aim to give new insights into the subtle traces of pre-Columbian influences on present-day forests given the archaeological context of terra firme forests of the Guiana Shield. Following archaeological prospects on 13 sites in French Guiana, we carried out forest inventories inside and outside archaeological sites and assessed the potential pre-Columbian use of the sampled tree species using an original ethnobotanical database of the Guiana Shield region. Aboveground biomass (320 and 380 T/ha, respectively), basal area (25-30 and 30-35 m2 /ha, respectively), and tree density (550 and 700 stem/ha, respectively) were all significantly lower on anthropized plots (As) than on nonanthropized plots (NAs). Ancient human presence shaped the species composition of the sampled forests with Arecaceae, Burseraceae, and Lauraceae significantly more frequent in As and Annonaceae and Lecythidaceae more frequent in NAs. Although alpha diversity was not different between As and NAs, the presence of pre-Columbian sites enhances significantly the forest beta diversity at the landscape level. Finally, trees with edible fruits are positively associated with pre-Columbian sites, whereas trees used for construction or for their bark are negatively associated with pre-Columbian sites. Half a millennium after their abandonment, former occupied places from the inner Guiana Shield still bear noticeable differences with nonanthropized places. Considering the lack of data concerning archaeology of terra firme Amazonian forests, our results suggest that pre-Columbian influences on the structure (lower current biomass), diversity (higher beta diversity), and composition (linked to the past human tree uses) of current Amazonian forests might be more important than previously thought.
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Affiliation(s)
- Guillaume Odonne
- LEEISA (Laboratoire Ecologie, Evolution, Interactions des Systèmes Amazoniens), CNRS, Université de Guyane, IFREMER, 97300, Cayenne, French Guiana
| | - Martijn van den Bel
- Institut National de Recherches Archéologiques Préventives, 97300, Cayenne, French Guiana
| | - Maxime Burst
- UMR 1434 Silva, Faculté des Sciences et Technologies, Université de Lorraine-AgroParisTech-INRA, 54506, Vandoeuvre-les-Nancy Cedex, France
| | - Olivier Brunaux
- ONF-Guyane, Réserve de Montabo, 97307, Cayenne, French Guiana
| | - Miléna Bruno
- LEEISA (Laboratoire Ecologie, Evolution, Interactions des Systèmes Amazoniens), CNRS, Université de Guyane, IFREMER, 97300, Cayenne, French Guiana
| | - Etienne Dambrine
- Univ. Savoie Mont Blanc, INRA, CARRTEL, 74200, Thonon-les-Bains, France
| | - Damien Davy
- LEEISA (Laboratoire Ecologie, Evolution, Interactions des Systèmes Amazoniens), CNRS, Université de Guyane, IFREMER, 97300, Cayenne, French Guiana
| | - Mathilde Desprez
- Cirad, UMR Écologie des Forêts de Guyane (AgroParisTech, CNRS, INRA, Université des Antilles, Université de Guyane), 97310, Kourou, France
| | - Julien Engel
- Department of Biological Sciences, International Center for Tropical Botany, Florida International University, Miami, Florida, 33199, USA.,AMAP, IRD, Cirad, CNRS, INRA, Université de Montpellier, 34000, Montpellier, France
| | - Bruno Ferry
- Institut National de Recherches Archéologiques Préventives, 97300, Cayenne, French Guiana
| | - Vincent Freycon
- Cirad, UR Forests and Societies, Université Montpellier, 34000, Montpellier, France
| | - Pierre Grenand
- LEEISA (Laboratoire Ecologie, Evolution, Interactions des Systèmes Amazoniens), CNRS, Université de Guyane, IFREMER, 97300, Cayenne, French Guiana
| | - Sylvie Jérémie
- Institut National de Recherches Archéologiques Préventives, 97300, Cayenne, French Guiana
| | - Mickael Mestre
- Institut National de Recherches Archéologiques Préventives, 97300, Cayenne, French Guiana
| | - Jean-François Molino
- AMAP, IRD, Cirad, CNRS, INRA, Université de Montpellier, 34000, Montpellier, France
| | - Pascal Petronelli
- Cirad, UMR Écologie des Forêts de Guyane (AgroParisTech, CNRS, INRA, Université des Antilles, Université de Guyane), 97310, Kourou, France
| | - Daniel Sabatier
- AMAP, IRD, Cirad, CNRS, INRA, Université de Montpellier, 34000, Montpellier, France
| | - Bruno Hérault
- Cirad, UR Forests and Societies, Université Montpellier, 34000, Montpellier, France.,Institut National Polytechnique Félix Houphouet-Boigny (INP-HB), Yamoussoukro, Ivory Coast
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20
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Degradation of Ecosystem Services and Deforestation in Landscapes With and Without Incentive-Based Forest Conservation in the Ecuadorian Amazon. FORESTS 2019. [DOI: 10.3390/f10050442] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Anthropogenic activities such as logging or forest conversion into agricultural lands are affecting Ecuadorian Amazon forests. To foster private and communal conservation activities an economic incentive-based conservation program (IFC) called Socio Bosque was established. Existing analyses related to conservation strategies are mainly focused on deforestation; while degradation and the role of IFC to safeguard ecosystem services are still scarce. Further on, there is a lack of landscape-level studies taking into account potential side effects of IFC on different forest types. Therefore we assessed ecosystem services (carbon stocks, timber volume) and species richness in landscapes with and without IFC. Additionally, we evaluated potential side-effects of IFC in adjacent forest types; hypothesizing potential leakage effects of IFC. Finally, we tested if deforestation rates decreased after IFC implementation. Forest inventories were conducted in 72 plots across eight landscapes in the Ecuadorian Central Amazon with and without IFC. Plots were randomly selected within three forest types (old-growth, logged and successional forests). In each plot all individuals with a diameter at breast height greater than 10 cm were measured. Old-growth forests in general showed higher carbon stocks, timber volume and species richness, and no significant differences between old-growth forests in IFC and non-IFC landscapes were found. Logged forests had 32% less above-ground carbon (AGC) and timber volume in comparison to old-growth forests. Surprisingly, logged forests near IFC presented higher AGC stocks than logged forests in non-IFC landscapes, indicating positive side-effects of IFC. Successional forests contain 56% to 64% of AGC, total carbon and timber volume, in comparison to old-growth forests, and 82% to 87% in comparison to logged forests. Therefore, successional forests could play an important role for restoration and should receive more attention in national climate change policies. Finally, after IFC implementation deforestation rate decreased on parish level. Our study presents scientific evidence of IFC contribution to conserving ecosystem services and species richness. In addition IFC could help indirectly to reduce degradation effects attributed to logging, indicating potential compatibility of conservation aims with forest activities at a landscape level.
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21
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Both S, Riutta T, Paine CET, Elias DMO, Cruz RS, Jain A, Johnson D, Kritzler UH, Kuntz M, Majalap-Lee N, Mielke N, Montoya Pillco MX, Ostle NJ, Arn Teh Y, Malhi Y, Burslem DFRP. Logging and soil nutrients independently explain plant trait expression in tropical forests. THE NEW PHYTOLOGIST 2019; 221:1853-1865. [PMID: 30238458 DOI: 10.1111/nph.15444] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 08/12/2018] [Indexed: 06/08/2023]
Abstract
Plant functional traits regulate ecosystem functions but little is known about how co-occurring gradients of land use and edaphic conditions influence their expression. We test how gradients of logging disturbance and soil properties relate to community-weighted mean traits in logged and old-growth tropical forests in Borneo. We studied 32 physical, chemical and physiological traits from 284 tree species in eight 1 ha plots and measured long-term soil nutrient supplies and plant-available nutrients. Logged plots had greater values for traits that drive carbon capture and growth, whilst old-growth forests had greater values for structural and persistence traits. Although disturbance was the primary driver of trait expression, soil nutrients explained a statistically independent axis of variation linked to leaf size and nutrient concentration. Soil characteristics influenced trait expression via nutrient availability, nutrient pools, and pH. Our finding, that traits have dissimilar responses to land use and soil resource availability, provides robust evidence for the need to consider the abiotic context of logging when predicting plant functional diversity across human-modified tropical forests. The detection of two independent axes was facilitated by the measurement of many more functional traits than have been examined in previous studies.
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Affiliation(s)
- Sabine Both
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
- Environmental and Rural Science, University of New England, Armidale, 2351, NSW, Australia
| | - Terhi Riutta
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK
- Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, SL5 7PY, UK
| | - C E Timothy Paine
- Environmental and Rural Science, University of New England, Armidale, 2351, NSW, Australia
| | - Dafydd M O Elias
- Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 4YQ, UK
- Centre for Ecology & Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, UK
| | - R S Cruz
- Instituto de Ciencias de la Naturaleza, Territorio y Energías Renovables, Pontificia Universidad Católica del Perú, Lima, Perú
| | - Annuar Jain
- The South East Asia Rainforest Research Partnership (SEARRP), Danum Valley Field Centre, PO Box 60282, 91112, Lahad Datu, Sabah, Malaysia
| | - David Johnson
- School of Earth and Environmental Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Ully H Kritzler
- School of Earth and Environmental Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Marianne Kuntz
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
| | - Noreen Majalap-Lee
- Forest Research Centre, Peti Surat 1407, 90715, Sandakan, Sabah, Malaysia
| | - Nora Mielke
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
| | - Milenka X Montoya Pillco
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
| | - Nicholas J Ostle
- Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA1 4YQ, UK
- Centre for Ecology & Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, UK
| | - Yit Arn Teh
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
| | - Yadvinder Malhi
- Environmental and Rural Science, University of New England, Armidale, 2351, NSW, Australia
| | - David F R P Burslem
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
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22
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Magnabosco Marra D, Trumbore SE, Higuchi N, Ribeiro GHPM, Negrón-Juárez RI, Holzwarth F, Rifai SW, Dos Santos J, Lima AJN, Kinupp VF, Chambers JQ, Wirth C. Windthrows control biomass patterns and functional composition of Amazon forests. GLOBAL CHANGE BIOLOGY 2018; 24:5867-5881. [PMID: 30256494 DOI: 10.1111/gcb.14457] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 09/08/2018] [Accepted: 09/10/2018] [Indexed: 06/08/2023]
Abstract
Amazon forests account for ~25% of global land biomass and tropical tree species. In these forests, windthrows (i.e., snapped and uprooted trees) are a major natural disturbance, but the rates and mechanisms of recovery are not known. To provide a predictive framework for understanding the effects of windthrows on forest structure and functional composition (DBH ≥10 cm), we quantified biomass recovery as a function of windthrow severity (i.e., fraction of windthrow tree mortality on Landsat pixels, ranging from 0%-70%) and time since disturbance for terra-firme forests in the Central Amazon. Forest monitoring allowed insights into the processes and mechanisms driving the net biomass change (i.e., increment minus loss) and shifts in functional composition. Windthrown areas recovering for between 4-27 years had biomass stocks as low as 65.2-91.7 Mg/ha or 23%-38% of those in nearby undisturbed forests (~255.6 Mg/ha, all sites). Even low windthrow severities (4%-20% tree mortality) caused decadal changes in biomass stocks and structure. While rates of biomass increment in recovering vegetation were nearly double (6.3 ± 1.4 Mg ha-1 year-1 ) those of undisturbed forests (~3.7 Mg ha-1 year-1 ), biomass loss due to post-windthrow mortality was high (up to -7.5 ± 8.7 Mg ha-1 year-1 , 8.5 years since disturbance) and unpredictable. Consequently, recovery to 90% of "pre-disturbance" biomass takes up to 40 years. Resprouting trees contributed little to biomass recovery. Instead, light-demanding, low-density genera (e.g., Cecropia, Inga, Miconia, Pourouma, Tachigali, and Tapirira) were favored, resulting in substantial post-windthrow species turnover. Shifts in functional composition demonstrate that windthrows affect the resilience of live tree biomass by favoring soft-wooded species with shorter life spans that are more vulnerable to future disturbances. As the time required for forests to recover biomass is likely similar to the recurrence interval of windthrows triggering succession, windthrows have the potential to control landscape biomass/carbon dynamics and functional composition in Amazon forests.
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Affiliation(s)
- Daniel Magnabosco Marra
- Biogeochemical Processes Department, Max-Planck-Institute for Biogeochemistry, Jena, Germany
- Laboratório de Manejo Florestal, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
- AG Spezielle Botanik und Funktionelle Biodiversität, Universität Leipzig, Leipzig, Germany
| | - Susan E Trumbore
- Biogeochemical Processes Department, Max-Planck-Institute for Biogeochemistry, Jena, Germany
| | - Niro Higuchi
- Laboratório de Manejo Florestal, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Gabriel H P M Ribeiro
- Laboratório de Manejo Florestal, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Robinson I Negrón-Juárez
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California
| | - Frederic Holzwarth
- AG Spezielle Botanik und Funktionelle Biodiversität, Universität Leipzig, Leipzig, Germany
| | - Sami W Rifai
- Environmental Change Institute, University of Oxford, Oxford, UK
| | - Joaquim Dos Santos
- Laboratório de Manejo Florestal, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Adriano J N Lima
- Laboratório de Manejo Florestal, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Valdely F Kinupp
- Ciência e Tecnologia do Amazonas, Campus Manaus-Zona Leste, Herbário EAFM, Instituto Federal de Educação, Manaus, Brazil
| | - Jeffrey Q Chambers
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California
- Geography Department, University of California, Berkeley, California
| | - Christian Wirth
- AG Spezielle Botanik und Funktionelle Biodiversität, Universität Leipzig, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Functional Biogeography Fellow Group, Max-Planck-Institute for Biogeochemistry, Jena, Germany
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23
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Lennox GD, Gardner TA, Thomson JR, Ferreira J, Berenguer E, Lees AC, Mac Nally R, Aragão LEOC, Ferraz SFB, Louzada J, Moura NG, Oliveira VHF, Pardini R, Solar RRC, Vaz-de Mello FZ, Vieira ICG, Barlow J. Second rate or a second chance? Assessing biomass and biodiversity recovery in regenerating Amazonian forests. GLOBAL CHANGE BIOLOGY 2018; 24:5680-5694. [PMID: 30216600 DOI: 10.1111/gcb.14443] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/18/2018] [Accepted: 08/30/2018] [Indexed: 06/08/2023]
Abstract
Secondary forests (SFs) regenerating on previously deforested land account for large, expanding areas of tropical forest cover. Given that tropical forests rank among Earth's most important reservoirs of carbon and biodiversity, SFs play an increasingly pivotal role in the carbon cycle and as potential habitat for forest biota. Nevertheless, their capacity to regain the biotic attributes of undisturbed primary forests (UPFs) remains poorly understood. Here, we provide a comprehensive assessment of SF recovery, using extensive tropical biodiversity, biomass, and environmental datasets. These data, collected in 59 naturally regenerating SFs and 30 co-located UPFs in the eastern Amazon, cover >1,600 large- and small-stemmed plant, bird, and dung beetles species and a suite of forest structure, landscape context, and topoedaphic predictors. After up to 40 years of regeneration, the SFs we surveyed showed a high degree of biodiversity resilience, recovering, on average among taxa, 88% and 85% mean UPF species richness and composition, respectively. Across the first 20 years of succession, the period for which we have accurate SF age data, biomass recovered at 1.2% per year, equivalent to a carbon uptake rate of 2.25 Mg/ha per year, while, on average, species richness and composition recovered at 2.6% and 2.3% per year, respectively. For all taxonomic groups, biomass was strongly associated with SF species distributions. However, other variables describing habitat complexity-canopy cover and understory stem density-were equally important occurrence predictors for most taxa. Species responses to biomass revealed a successional transition at approximately 75 Mg/ha, marking the influx of high-conservation-value forest species. Overall, our results show that naturally regenerating SFs can accumulate substantial amounts of carbon and support many forest species. However, given that the surveyed SFs failed to return to a typical UPF state, SFs are not substitutes for UPFs.
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Affiliation(s)
- Gareth D Lennox
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Toby A Gardner
- Stockholm Environment Institute, Stockholm, Sweden
- International Institute for Sustainability, Estrada Dona Castorina, Rio de Janeiro, Brazil
| | - James R Thomson
- Institute for Applied Ecology, University of Canberra, Bruce, ACT, Australia
- Department of Environment, Land, Water and Planning, Arthur Rylah Institute for Environmental Research, Heidelberg, Vic, Australia
| | | | - Erika Berenguer
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Environmental Change Institute, University of Oxford, Oxford, UK
| | - Alexander C Lees
- Division of Biology and Conservation Ecology, School of Science and the Environment, Manchester Metropolitan University, Manchester, UK
- Cornell Lab of Ornithology, Cornell University, Ithaca, New York
| | - Ralph Mac Nally
- Institute for Applied Ecology, University of Canberra, Bruce, ACT, Australia
- Sunrise Ecological Research Institute, Ocean Grove, Vic, Australia
| | - Luiz E O C Aragão
- Tropical Ecosystems and Environmental Sciences Group (TREES), Remote Sensing Division, National Institute for Space Research-INPE, Avenida dos Astronautas, Sao Jose dos Campos, Brazil
- College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Silvio F B Ferraz
- Escola Superior de Agricultura "Luiz de Queiroz", Universidade de Sao Paulo, Esalq/USP, Piracicaba, Brazil
| | - Julio Louzada
- Setor de Ecologia e Conservação, Universidade Federal de Lavras, Lavras, Brazil
| | | | - Victor H F Oliveira
- Setor de Ecologia e Conservação, Universidade Federal de Lavras, Lavras, Brazil
| | - Renata Pardini
- Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Ricardo R C Solar
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Fernando Z Vaz-de Mello
- Departamento de Biologia e Zoologia, Instituto de Biociencias, Universidade Federal de Mato Grosso, Cuiaba, Brazil
| | | | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Setor de Ecologia e Conservação, Universidade Federal de Lavras, Lavras, Brazil
- MCTI/Museu Paraense Emílio Goeldi, Belém, Brazil
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24
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Silva CVJ, Aragão LEOC, Barlow J, Espirito-Santo F, Young PJ, Anderson LO, Berenguer E, Brasil I, Foster Brown I, Castro B, Farias R, Ferreira J, França F, Graça PMLA, Kirsten L, Lopes AP, Salimon C, Scaranello MA, Seixas M, Souza FC, Xaud HAM. Drought-induced Amazonian wildfires instigate a decadal-scale disruption of forest carbon dynamics. Philos Trans R Soc Lond B Biol Sci 2018; 373:rstb.2018.0043. [PMID: 30297477 DOI: 10.1098/rstb.2018.0043] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2018] [Indexed: 11/12/2022] Open
Abstract
Drought-induced wildfires have increased in frequency and extent over the tropics. Yet, the long-term (greater than 10 years) responses of Amazonian lowland forests to fire disturbance are poorly known. To understand post-fire forest biomass dynamics, and to assess the time required for fire-affected forests to recover to pre-disturbance levels, we combined 16 single with 182 multiple forest census into a unique large-scale and long-term dataset across the Brazilian Amazonia. We quantified biomass, mortality and wood productivity of burned plots along a chronosequence of up to 31 years post-fire and compared to surrounding unburned plots measured simultaneously. Stem mortality and growth were assessed among functional groups. At the plot level, we found that fire-affected forests have biomass levels 24.8 ± 6.9% below the biomass value of unburned control plots after 31 years. This lower biomass state results from the elevated levels of biomass loss through mortality, which is not sufficiently compensated for by wood productivity (incremental growth + recruitment). At the stem level, we found major changes in mortality and growth rates up to 11 years post-fire. The post-fire stem mortality rates exceeded unburned control plots by 680% (i.e. greater than 40 cm diameter at breast height (DBH); 5-8 years since last fire) and 315% (i.e. greater than 0.7 g cm-3 wood density; 0.75-4 years since last fire). Our findings indicate that wildfires in humid tropical forests can significantly reduce forest biomass for decades by enhancing mortality rates of all trees, including large and high wood density trees, which store the largest amount of biomass in old-growth forests. This assessment of stem dynamics, therefore, demonstrates that wildfires slow down or stall the post-fire recovery of Amazonian forests.This article is part of a discussion meeting issue 'The impact of the 2015/2016 El Niño on the terrestrial tropical carbon cycle: patterns, mechanisms and implications'.
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Affiliation(s)
- Camila V J Silva
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK .,National Institute for Space Research, Av. dos Astronautas, 1.758, São José dos Campos 12227-010, Brazil
| | - Luiz E O C Aragão
- National Institute for Space Research, Av. dos Astronautas, 1.758, São José dos Campos 12227-010, Brazil.,College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4RJ, UK
| | - Jos Barlow
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
| | - Fernando Espirito-Santo
- Leicester Institute of Space and Earth Observation (LISEO), Centre for Landscape and Climate Research (CLCR), School of Geography, Geology and Environment, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - Paul J Young
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.,Pentland Centre for Sustainability in Business, Lancaster University, Lancaster LA1 4YX, UK
| | - Liana O Anderson
- National Centre for Monitoring and Early Warning of Natural Disasters (CEMADEN), São Jose dos Campos, São Paulo, 12247-016 Brazil.,Environmental Change Institute, University of Oxford, Oxford OX1 3QY, UK
| | - Erika Berenguer
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.,Environmental Change Institute, University of Oxford, Oxford OX1 3QY, UK
| | - Izaias Brasil
- Universidade Federal do Acre (UFAC), Parque Zoobotanico, Rio Branco 69915-900, Acre, Brazil
| | - I Foster Brown
- Universidade Federal do Acre (UFAC), Parque Zoobotanico, Rio Branco 69915-900, Acre, Brazil.,Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA 02540-1644, USA
| | - Bruno Castro
- Instituto Centro de Vida, Av. Ariosto da Riva, 3473, Centro 78580-000, Alta Floresta, Brazil
| | - Renato Farias
- Instituto Centro de Vida, Av. Ariosto da Riva, 3473, Centro 78580-000, Alta Floresta, Brazil
| | - Joice Ferreira
- Embrapa Amazônia Oriental, Trav. Dr. Enéas Pinheiro s/no. Caixa Postal 48, Belém 66095-100, Pará, Brazil
| | - Filipe França
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK.,Embrapa Amazônia Oriental, Trav. Dr. Enéas Pinheiro s/no. Caixa Postal 48, Belém 66095-100, Pará, Brazil
| | - Paulo M L A Graça
- National Institute for Research in Amazonia (INPA), Av. André Araújo, 2936, Manaus 69067-375, Amazonas, Brazil
| | - Letícia Kirsten
- National Institute for Research in Amazonia (INPA), Av. André Araújo, 2936, Manaus 69067-375, Amazonas, Brazil
| | - Aline P Lopes
- National Institute for Space Research, Av. dos Astronautas, 1.758, São José dos Campos 12227-010, Brazil
| | - Cleber Salimon
- Universidade Estadual da Paraíba, Centro de Ciências Biológicas e Sociais Aplicadas (CCBSA), R. Horácio Trajano de Oliveira, 1559 - Cristo Redentor, João Pessoa 58070-450, Brazil
| | - Marcos Augusto Scaranello
- Instituto Centro de Vida, Av. Ariosto da Riva, 3473, Centro 78580-000, Alta Floresta, Brazil.,EMBRAPA Informática Agropecuária, Barão Geraldo, Campinas, São Paulo, 13083-886 Brazil
| | - Marina Seixas
- Embrapa Amazônia Oriental, Trav. Dr. Enéas Pinheiro s/no. Caixa Postal 48, Belém 66095-100, Pará, Brazil
| | | | - Haron A M Xaud
- Brazilian Agricultural Research Corporation, Embrapa Roraima, PO Box 133, Boa Vista, Roraima 69.301-970, Brazil
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25
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Piponiot C, Derroire G, Descroix L, Mazzei L, Rutishauser E, Sist P, Hérault B. Assessing timber volume recovery after disturbance in tropical forests – A new modelling framework. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.05.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Cerullo GR, Edwards DP. Actively restoring resilience in selectively logged tropical forests. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13262] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - David P. Edwards
- Department of Animal and Plant SciencesUniversity of Sheffield Sheffield UK
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27
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Roopsind A, Caughlin TT, van der Hout P, Arets E, Putz FE. Trade-offs between carbon stocks and timber recovery in tropical forests are mediated by logging intensity. GLOBAL CHANGE BIOLOGY 2018; 24:2862-2874. [PMID: 29603495 DOI: 10.1111/gcb.14155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/22/2018] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
Forest degradation accounts for ~70% of total carbon losses from tropical forests. Substantial emissions are from selective logging, a land-use activity that decreases forest carbon density. To maintain carbon values in selectively logged forests, climate change mitigation policies and government agencies promote the adoption of reduced-impact logging (RIL) practices. However, whether RIL will maintain both carbon and timber values in managed tropical forests over time remains uncertain. In this study, we quantify the recovery of timber stocks and aboveground carbon at an experimental site where forests were subjected to different intensities of RIL (4, 8, and 16 trees/ha). Our census data span 20 years postlogging and 17 years after the liberation of future crop trees from competition in a tropical forest on the Guiana Shield, a globally important forest carbon reservoir. We model recovery of timber and carbon with a breakpoint regression that allowed us to capture elevated tree mortality immediately after logging. Recovery rates of timber and carbon were governed by the presence of residual trees (i.e., trees that persisted through the first harvest). The liberation treatment stimulated faster recovery of timber albeit at a carbon cost. Model results suggest a threshold logging intensity beyond which forests managed for timber and carbon derive few benefits from RIL, with recruitment and residual growth not sufficient to offset losses. Inclusion of the breakpoint at which carbon and timber gains outpaced postlogging mortality led to high predictive accuracy, including out-of-sample R2 values >90%, and enabled inference on demographic changes postlogging. Our modeling framework is broadly applicable to studies that aim to quantify impacts of logging on forest recovery. Overall, we demonstrate that initial mortality drives variation in recovery rates, that the second harvest depends on old growth wood, and that timber intensification lowers carbon stocks.
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Affiliation(s)
- Anand Roopsind
- Biological Sciences, Boise State University, Boise, ID, USA
| | | | | | - Eric Arets
- Wageningen University and Research, Wageningen, The Netherlands
| | - Francis E Putz
- Department of Biology, University of Florida, Gainesville, FL, USA
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28
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de Avila AL, van der Sande MT, Dormann CF, Peña-Claros M, Poorter L, Mazzei L, Ruschel AR, Silva JNM, de Carvalho JOP, Bauhus J. Disturbance intensity is a stronger driver of biomass recovery than remaining tree-community attributes in a managed Amazonian forest. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13134] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Angela L. de Avila
- Chair of Silviculture; Faculty of Environment and Natural Resources; University of Freiburg; Freiburg Germany
| | - Masha T. van der Sande
- Forest Ecology and Forest Management Group; Wageningen University and Research; Wageningen The Netherlands
| | - Carsten F. Dormann
- Biometry and Environmental System Analysis; Faculty of Environment and Natural Resources; University of Freiburg; Freiburg Germany
| | - Marielos Peña-Claros
- Forest Ecology and Forest Management Group; Wageningen University and Research; Wageningen The Netherlands
| | - Lourens Poorter
- Forest Ecology and Forest Management Group; Wageningen University and Research; Wageningen The Netherlands
| | | | | | | | | | - Jürgen Bauhus
- Chair of Silviculture; Faculty of Environment and Natural Resources; University of Freiburg; Freiburg Germany
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29
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Qie L, Lewis SL, Sullivan MJP, Lopez-Gonzalez G, Pickavance GC, Sunderland T, Ashton P, Hubau W, Abu Salim K, Aiba SI, Banin LF, Berry N, Brearley FQ, Burslem DFRP, Dančák M, Davies SJ, Fredriksson G, Hamer KC, Hédl R, Kho LK, Kitayama K, Krisnawati H, Lhota S, Malhi Y, Maycock C, Metali F, Mirmanto E, Nagy L, Nilus R, Ong R, Pendry CA, Poulsen AD, Primack RB, Rutishauser E, Samsoedin I, Saragih B, Sist P, Slik JWF, Sukri RS, Svátek M, Tan S, Tjoa A, van Nieuwstadt M, Vernimmen RRE, Yassir I, Kidd PS, Fitriadi M, Ideris NKH, Serudin RM, Abdullah Lim LS, Saparudin MS, Phillips OL. Long-term carbon sink in Borneo's forests halted by drought and vulnerable to edge effects. Nat Commun 2017; 8:1966. [PMID: 29259276 PMCID: PMC5736600 DOI: 10.1038/s41467-017-01997-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 10/30/2017] [Indexed: 11/24/2022] Open
Abstract
Less than half of anthropogenic carbon dioxide emissions remain in the atmosphere. While carbon balance models imply large carbon uptake in tropical forests, direct on-the-ground observations are still lacking in Southeast Asia. Here, using long-term plot monitoring records of up to half a century, we find that intact forests in Borneo gained 0.43 Mg C ha−1 per year (95% CI 0.14–0.72, mean period 1988–2010) in above-ground live biomass carbon. These results closely match those from African and Amazonian plot networks, suggesting that the world’s remaining intact tropical forests are now en masse out-of-equilibrium. Although both pan-tropical and long-term, the sink in remaining intact forests appears vulnerable to climate and land use changes. Across Borneo the 1997–1998 El Niño drought temporarily halted the carbon sink by increasing tree mortality, while fragmentation persistently offset the sink and turned many edge-affected forests into a carbon source to the atmosphere. The existence of a pan-tropical forest carbon sink remains uncertain due to the lack of data from Asia. Here, using direct on-the-ground observations, the authors confirm remaining intact forests in Borneo have provided a long-term carbon sink, but carbon net gains are vulnerable to drought and edge effects.
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Affiliation(s)
- Lan Qie
- School of Geography, University of Leeds, Leeds, LS2 9JT, UK. .,Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, SL5 7PY, UK.
| | - Simon L Lewis
- School of Geography, University of Leeds, Leeds, LS2 9JT, UK.,Department of Geography, University College London, London, WC1E 6BT, UK
| | | | | | | | - Terry Sunderland
- Center for International Forestry Research, Jl. CIFOR, Situ Gede, Bogor (Barat), 16115, Indonesia.,School of Environmental and Marine Science, James Cook University, 1 James Cook Dr, Townsville City, QLD, 4811, Australia
| | - Peter Ashton
- Department of Organismic and Evolutionary Biology, Harvard University, 22 Divinity Avenue, Cambridge, MA, 02138, USA
| | - Wannes Hubau
- School of Geography, University of Leeds, Leeds, LS2 9JT, UK.,Laboratory for wood Biology and Xylarium, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080, Tervuren, Belgium
| | - Kamariah Abu Salim
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Shin-Ichiro Aiba
- Graduate School of Science and Engineering, Kagoshima University, 890-0065, Kagoshima, Japan
| | - Lindsay F Banin
- School of Geography, University of Leeds, Leeds, LS2 9JT, UK.,Centre for Ecology and Hydrology, Penicuik, EH26 0QB, UK
| | - Nicholas Berry
- School of Geography, University of Leeds, Leeds, LS2 9JT, UK.,Bioclimate, Thorn House, 5 Rose Street, Edinburgh, EH2 2PR, UK
| | - Francis Q Brearley
- School of Science and the Environment, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - David F R P Burslem
- School of Biological Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen, AB24 3UU, UK
| | - Martin Dančák
- Department of Ecology & Environmental Sciences, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Stuart J Davies
- Center for Tropical Forest Science - Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Washington, DC, 20013, USA.,Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Gabriella Fredriksson
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1012 WX, Amsterdam, The Netherlands.,Pro Natura Foundation, Jl. Jend. Sudirman No. 37, Balikpapan, 76112, Indonesia.,Pan Eco, SOCP, Jl. Wahid Hasyim No. 51/74, Medan, 20154, Indonesia
| | - Keith C Hamer
- School of Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - Radim Hédl
- Department of Vegetation Ecology, Institute of Botany, The Czech Academy of Sciences, Lidicka 25/27, CZ-60200, Brno, Czech Republic.,Department of Botany, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Lip Khoon Kho
- Tropical Peat Research Institute, Biological Research Division, Malaysian Palm Oil Board, Bandar Baru Bangi, 43000, Kajang, Malaysia
| | - Kanehiro Kitayama
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Haruni Krisnawati
- Forest Research and Development Center, Research, Development and Innovation Agency, Ministry of Environment and Forestry, Jl. Gunung Batu No 5, Bogor, 16610, Indonesia
| | - Stanislav Lhota
- Department of Animal Science and Food Processing, Faculty of Tropical Agrisciences, Czech University of Life Sciences, Kamýcká 129, 165 00 Praha 6 - Suchdol, Prague, Czech Republic.,Ústí nad Labem Zoo, Drážďanská 23, 400 07, Ústí nad Labem, Czech Republic
| | - Yadvinder Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford, OX1 3QY, UK
| | - Colin Maycock
- International Tropical Forestry, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Jl. UMS, 88400, Kota Kinabalu, Malaysia
| | - Faizah Metali
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Edi Mirmanto
- Research Center for Biology, Indonesian Institute of Sciences, Jl. Raya Jakarta-Bogor KM 46, Cibinong, 16911, Indonesia
| | - Laszlo Nagy
- Universidade Estadual de Campinas, Campinas, 13083-970, Brazil
| | - Reuben Nilus
- Sabah Forestry Department Forest Research Centre, Mile 14 Jl. Sepilok, 90000, Sandakan, Malaysia
| | - Robert Ong
- Sabah Forestry Department Forest Research Centre, Mile 14 Jl. Sepilok, 90000, Sandakan, Malaysia
| | | | | | - Richard B Primack
- Biology Department, Boston University, 5 Cummington Mall, Boston, MA, 02215, USA
| | - Ervan Rutishauser
- Smithsonian Tropical Research Institute, Balboa, Ancon, 03092, Panama.,Carboforexpert, Hermance, 1248, Switzerland
| | - Ismayadi Samsoedin
- Forest Research and Development Center, Research, Development and Innovation Agency, Ministry of Environment and Forestry, Jl. Gunung Batu No 5, Bogor, 16610, Indonesia
| | - Bernaulus Saragih
- Faculty of Forestry, Mulawarman University, Jl. Pasir Balengkong, 75123, Samarinda, Indonesia
| | - Plinio Sist
- Forests and Societies Research Unit, CIRAD-Univ. Montpellier, Campus International de Baillarguet, TA C-105/D, 34398, Montpellier Cedex 5, France
| | - J W Ferry Slik
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Rahayu Sukmaria Sukri
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Martin Svátek
- Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 3, 613 00, Brno, Czech Republic
| | - Sylvester Tan
- CTFS-ForestGEO Program, Lambir, Miri, 98000, Sarawak, Malaysia
| | - Aiyen Tjoa
- Agriculture Faculty of Tadulako University, Jln Soekarno Hatta km 09, Tondo, 94118, Indonesia
| | | | | | - Ishak Yassir
- Balitek-KSDA, Research, Development and Innovation Agency, Ministry of Environment and Forestry, Jl. Soekarno Hatta KM. 38, RT 09, Samboja, Indonesia
| | - Petra Susan Kidd
- Instituto de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas (CSIC), Santiago de Compostela, 15705, Spain
| | - Muhammad Fitriadi
- Sungai Wain Protected Forest Management Unit, KM. 23, Kel. Karang Joang, Balikpapan, 76101, Indonesia
| | - Nur Khalish Hafizhah Ideris
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Rafizah Mat Serudin
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Layla Syaznie Abdullah Lim
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Muhammad Shahruney Saparudin
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
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30
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Fauset S, Gloor MU, Aidar MPM, Freitas HC, Fyllas NM, Marabesi MA, Rochelle ALC, Shenkin A, Vieira SA, Joly CA. Tropical forest light regimes in a human-modified landscape. Ecosphere 2017; 8:e02002. [PMID: 29263939 PMCID: PMC5731677 DOI: 10.1002/ecs2.2002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 10/02/2017] [Indexed: 11/24/2022] Open
Abstract
Light is the key energy input for all vegetated systems. Forest light regimes are complex, with the vertical pattern of light within canopies influenced by forest structure. Human disturbances in tropical forests impact forest structure and hence may influence the light environment and thus competitiveness of different trees. In this study, we measured vertical diffuse light profiles along a gradient of anthropogenic disturbance, sampling intact, logged, secondary, and fragmented sites in the biodiversity hot spot of the Atlantic forest, southeast Brazil, using photosynthetically active radiation sensors and a novel approach with estimations of vertical light profiles from hemispherical photographs. Our results show clear differences in vertical light profiles with disturbance: Fragmented forests are characterized by rapid light extinction within their low canopies, while the profiles in logged forests show high heterogeneity and high light in the mid-canopy despite decades of recovery. The secondary forest showed similar light profiles to intact forest, but with a lower canopy height. We also show that in some cases the upper canopy layer and heavy liana infestations can severely limit light penetration. Light extinction with height above the ground and depth below the canopy top was highest in fragmented forest and negatively correlated with canopy height. The novel, inexpensive, and rapid methods described here can be applied to other sites to quantify rarely measured vertical light profiles.
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Affiliation(s)
- Sophie Fauset
- School of GeographyUniversity of LeedsLeedsLS2 9JTUK
- Departamento de Biologia VegetalInstituto de BiologiaUniversidade Estadual de CampinasRua Monteiro Lobato, Cidade UniversitâriaCampinasSao Paulo13083‐862Brazil
| | | | - Marcos P. M. Aidar
- Instituto de Botânica de São PauloAvenida Miguel StéfanoSao Paulo04301‐902Brazil
| | - Helber C. Freitas
- Departamento de FísicaFaculdade de CiênciasUniversidade Estadual PaulistaAvenida Engenheiro Luiz Edmundo Carrijo Coube, 14‐01BauruSao Paulo17033‐360Brazil
- Centro de Meteorologia – IPMet/UNESPEstrada Municipal José SandrinBauruSao Paulo17048‐699Brazil
| | - Nikolaos M. Fyllas
- School of GeographyUniversity of LeedsLeedsLS2 9JTUK
- Environmental Change InstituteSchool of Geography and the EnvironmentUniversity of OxfordSouth Parks RoadOxfordOX1 3QYUK
| | - Mauro A. Marabesi
- Departamento de Biologia VegetalInstituto de BiologiaUniversidade Estadual de CampinasRua Monteiro Lobato, Cidade UniversitâriaCampinasSao Paulo13083‐862Brazil
- Instituto de Botânica de São PauloAvenida Miguel StéfanoSao Paulo04301‐902Brazil
| | - André L. C. Rochelle
- Departamento de Biologia VegetalInstituto de BiologiaUniversidade Estadual de CampinasRua Monteiro Lobato, Cidade UniversitâriaCampinasSao Paulo13083‐862Brazil
| | - Alexander Shenkin
- Environmental Change InstituteSchool of Geography and the EnvironmentUniversity of OxfordSouth Parks RoadOxfordOX1 3QYUK
| | - Simone A. Vieira
- Núcleo de Estudos e Pesquisas AmbientaisUniversidade Estadual de CampinasRua dos Flamboyants, 155CampinasSao Paulo13083‐867Brazil
| | - Carlos A. Joly
- Departamento de Biologia VegetalInstituto de BiologiaUniversidade Estadual de CampinasRua Monteiro Lobato, Cidade UniversitâriaCampinasSao Paulo13083‐862Brazil
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31
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Wang F, Ding Y, Sayer EJ, Li Q, Zou B, Mo Q, Li Y, Lu X, Tang J, Zhu W, Li Z. Tropical forest restoration: Fast resilience of plant biomass contrasts with slow recovery of stable soil C stocks. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12925] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Faming Wang
- Key Laboratory of Vegetation Restoration and Management of Degraded EcosystemsSouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- Marine Biological Laboratory Woods Hole MA USA
| | - Yongzhen Ding
- Agro‐Environmental Protection InstituteMinistry of Agriculture Tianjin China
| | - Emma J. Sayer
- Lancaster Environment CentreLancaster University Lancaster UK
- Smithsonian Tropical Research Institute Balboa, Ancon Panama
- School of Environment, Earth and EcosystemsThe Open University Milton Keynes UK
| | - Qinlu Li
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- Maoming Xiaoliang Water and Soil Conservation Research Station Maoming China
| | - Bi Zou
- Key Laboratory of Vegetation Restoration and Management of Degraded EcosystemsSouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of Sciences Guangzhou China
| | - Qifeng Mo
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- South China Agriculture University Guangzhou China
| | - Yingwen Li
- Key Laboratory of Vegetation Restoration and Management of Degraded EcosystemsSouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of Sciences Guangzhou China
| | | | - Jianwu Tang
- Marine Biological Laboratory Woods Hole MA USA
| | - Weixing Zhu
- Biological Science DepartmentBinghamton University Binghamton NY USA
| | - Zhian Li
- Key Laboratory of Vegetation Restoration and Management of Degraded EcosystemsSouth China Botanical GardenChinese Academy of Sciences Guangzhou China
- Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of Sciences Guangzhou China
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32
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Piponiot C, Sist P, Mazzei L, Peña-Claros M, Putz FE, Rutishauser E, Shenkin A, Ascarrunz N, de Azevedo CP, Baraloto C, França M, Guedes M, Honorio Coronado EN, d'Oliveira MVN, Ruschel AR, da Silva KE, Doff Sotta E, de Souza CR, Vidal E, West TAP, Hérault B. Carbon recovery dynamics following disturbance by selective logging in Amazonian forests. eLife 2016; 5:e21394. [PMID: 27993185 PMCID: PMC5217754 DOI: 10.7554/elife.21394] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 12/08/2016] [Indexed: 11/27/2022] Open
Abstract
When 2 Mha of Amazonian forests are disturbed by selective logging each year, more than 90 Tg of carbon (C) is emitted to the atmosphere. Emissions are then counterbalanced by forest regrowth. With an original modelling approach, calibrated on a network of 133 permanent forest plots (175 ha total) across Amazonia, we link regional differences in climate, soil and initial biomass with survivors' and recruits' C fluxes to provide Amazon-wide predictions of post-logging C recovery. We show that net aboveground C recovery over 10 years is higher in the Guiana Shield and in the west (21 ±3 Mg C ha-1) than in the south (12 ±3 Mg C ha-1) where environmental stress is high (low rainfall, high seasonality). We highlight the key role of survivors in the forest regrowth and elaborate a comprehensive map of post-disturbance C recovery potential in Amazonia.
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Affiliation(s)
- Camille Piponiot
- Université de Guyane, UMR EcoFoG (Agroparistech, CNRS, Inra, Université des Antilles, Cirad), Kourou, French Guiana
- Cirad, UMR EcoFoG (Agroparistech, CNRS, Inra, Université des Antilles, Université de Guyane), Kourou, French Guiana
- CNRS, UMR EcoFoG (Agroparistech, Inra, Université des Antilles, Université de Guyane, Cirad), Kourou, French Guiana
- Cirad, UR Forests and Societies, Montpellier, France
| | - Plinio Sist
- Cirad, UR Forests and Societies, Montpellier, France
| | | | - Marielos Peña-Claros
- Forest Ecology and Forest Management Group, Wageningen University, Wageningen, Netherlands
| | - Francis E Putz
- Department of Biology, University of Florida, Gainesville, United States
| | | | - Alexander Shenkin
- Environmental Change Institute, University of Oxford, Oxford, United Kingdom
| | - Nataly Ascarrunz
- Instituto Boliviano de Investigación Forestal, Santa Cruz, Bolivia
| | | | - Christopher Baraloto
- Department of Biological Sciences, International Center for Tropical Botany, Florida International University, Miami, United States
| | | | | | | | | | | | | | | | | | - Edson Vidal
- Departamento de Ciências Florestais, University of São Paulo, Piracicaba, Brazil
| | - Thales AP West
- Department of Biology, University of Florida, Gainesville, United States
| | - Bruno Hérault
- Cirad, UMR EcoFoG (Agroparistech, CNRS, Inra, Université des Antilles, Université de Guyane), Kourou, French Guiana
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33
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Multiple Patterns of Forest Disturbance and Logging Shape Forest Landscapes in Paragominas, Brazil. FORESTS 2016. [DOI: 10.3390/f7120315] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Piponiot C, Cabon A, Descroix L, Dourdain A, Mazzei L, Ouliac B, Rutishauser E, Sist P, Hérault B. A methodological framework to assess the carbon balance of tropical managed forests. CARBON BALANCE AND MANAGEMENT 2016; 11:15. [PMID: 27525036 PMCID: PMC4967106 DOI: 10.1186/s13021-016-0056-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/05/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. RESULTS The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. CONCLUSIONS We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions.
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Affiliation(s)
- Camille Piponiot
- Université de la Guyane, UMR EcoFoG (AgroParisTech, CNRS, Inra, Université des Antilles, Cirad), Campus agronomique, 97310 Kourou, French Guiana
- CNRS, UMR EcoFoG (AgroParisTech, Inra, Université de la Guyane, Université des Antilles, Cirad), Campus Agronomique, 97310 Kourou, French Guiana
| | - Antoine Cabon
- Centre Tecnològic Forestal de Catalunya, Crta. de Sant Llorenç de Morunys, Km.2, 25280 Solsona, Spain
| | | | - Aurélie Dourdain
- Cirad, UMR EcoFoG (AgroParisTech, CNRS, Inra, Université de la Guyane, Université des Antilles), Campus agronomique, 97310 Kourou, French Guiana
| | - Lucas Mazzei
- EMBRAPA Amazônia Oriental, Trav. Dr. Enéas Pinheiro, Belém, Brazil
| | - Benjamin Ouliac
- Guyane Energie Climat, 16 rue Victor Schoelcher, 97300 Cayenne, French Guiana
| | | | - Plinio Sist
- Cirad UR Forêts et Sociétés, 34398 Montpellier, France
| | - Bruno Hérault
- Cirad, UMR EcoFoG (AgroParisTech, CNRS, Inra, Université de la Guyane, Université des Antilles), Campus agronomique, 97310 Kourou, French Guiana
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35
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Vulnerability of Commercial Tree Species to Water Stress in Logged Forests of the Guiana Shield. FORESTS 2016. [DOI: 10.3390/f7050105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Rutishauser E, Hérault B, Petronelli P, Sist P. Tree Height Reduction After Selective Logging in a Tropical Forest. Biotropica 2016. [DOI: 10.1111/btp.12326] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ervan Rutishauser
- CarboForExpert (carboforexpert.ch); Geneva Switzerland
- CIRAD; UR B&SEF; Montpellier France
| | - Bruno Hérault
- CIRAD; UMR EcoFoG (Cirad, CNRS, Inra, AgroParisTech, Univ Guyane, Univ Antilles); Kourou French Guiana
| | - Pascal Petronelli
- CIRAD; UMR EcoFoG (Cirad, CNRS, Inra, AgroParisTech, Univ Guyane, Univ Antilles); Kourou French Guiana
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Biomass resilience of Neotropical secondary forests. Nature 2016; 530:211-4. [PMID: 26840632 DOI: 10.1038/nature16512] [Citation(s) in RCA: 305] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 12/02/2015] [Indexed: 01/28/2023]
Abstract
Land-use change occurs nowhere more rapidly than in the tropics, where the imbalance between deforestation and forest regrowth has large consequences for the global carbon cycle. However, considerable uncertainty remains about the rate of biomass recovery in secondary forests, and how these rates are influenced by climate, landscape, and prior land use. Here we analyse aboveground biomass recovery during secondary succession in 45 forest sites and about 1,500 forest plots covering the major environmental gradients in the Neotropics. The studied secondary forests are highly productive and resilient. Aboveground biomass recovery after 20 years was on average 122 megagrams per hectare (Mg ha(-1)), corresponding to a net carbon uptake of 3.05 Mg C ha(-1) yr(-1), 11 times the uptake rate of old-growth forests. Aboveground biomass stocks took a median time of 66 years to recover to 90% of old-growth values. Aboveground biomass recovery after 20 years varied 11.3-fold (from 20 to 225 Mg ha(-1)) across sites, and this recovery increased with water availability (higher local rainfall and lower climatic water deficit). We present a biomass recovery map of Latin America, which illustrates geographical and climatic variation in carbon sequestration potential during forest regrowth. The map will support policies to minimize forest loss in areas where biomass resilience is naturally low (such as seasonally dry forest regions) and promote forest regeneration and restoration in humid tropical lowland areas with high biomass resilience.
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