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Huang J, Ladd SN, Ingrisch J, Kübert A, Meredith LK, van Haren J, Bamberger I, Daber LE, Kühnhammer K, Bailey K, Hu J, Fudyma J, Shi L, Dippold MA, Meeran K, Miller L, O'Brien MJ, Yang H, Herrera-Ramírez D, Hartmann H, Trumbore S, Bahn M, Werner C, Lehmann MM. The mobilization and transport of newly fixed carbon are driven by plant water use in an experimental rainforest under drought. J Exp Bot 2024; 75:2545-2557. [PMID: 38271585 DOI: 10.1093/jxb/erae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/24/2024] [Indexed: 01/27/2024]
Abstract
Non-structural carbohydrates (NSCs) are building blocks for biomass and fuel metabolic processes. However, it remains unclear how tropical forests mobilize, export, and transport NSCs to cope with extreme droughts. We combined drought manipulation and ecosystem 13CO2 pulse-labeling in an enclosed rainforest at Biosphere 2, assessed changes in NSCs, and traced newly assimilated carbohydrates in plant species with diverse hydraulic traits and canopy positions. We show that drought caused a depletion of leaf starch reserves and slowed export and transport of newly assimilated carbohydrates below ground. Drought effects were more pronounced in conservative canopy trees with limited supply of new photosynthates and relatively constant water status than in those with continual photosynthetic supply and deteriorated water status. We provide experimental evidence that local utilization, export, and transport of newly assimilated carbon are closely coupled with plant water use in canopy trees. We highlight that these processes are critical for understanding and predicting tree resistance and ecosystem fluxes in tropical forest under drought.
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Affiliation(s)
- Jianbei Huang
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
| | - S Nemiah Ladd
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland
| | - Johannes Ingrisch
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
- Department of Ecology, University of Innsbruck, Sternwartestr 15, 6020 Innsbruck, Austria
| | - Angelika Kübert
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Laura K Meredith
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ 85721, USA
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Joost van Haren
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- Honors College, University of Arizona, 1101 East Mabel Street, Tucson, AZ 85719, USA
| | - Ines Bamberger
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
- Atmospheric Chemistry Group, University of Bayreuth (BayCEER), Germany
| | - L Erik Daber
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Kathrin Kühnhammer
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Kinzie Bailey
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ 85721, USA
| | - Jia Hu
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ 85721, USA
| | - Jane Fudyma
- Department of Environmental Science, University of Arizona, Tucson, AZ, USA
- Department of Land, Air, and Water Resources, University of California, Davis, CA, USA
| | - Lingling Shi
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen, Germany
- Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany
| | - Michaela A Dippold
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen, Germany
- Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany
| | - Kathiravan Meeran
- Department of Ecology, University of Innsbruck, Sternwartestr 15, 6020 Innsbruck, Austria
| | - Luke Miller
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Michael J O'Brien
- Estación Experimental de Zonas Áridas, Consejo Superior de Investigaciones Científicas, Almería, Spain
| | - Hui Yang
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
| | | | - Henrik Hartmann
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
- Institute for Forest Protection, Julius Kühn Institute (JKI) - Federal Research Centre for Cultivated Plants, Erwin-Baur-Straße 27, D-06484 Quedlinburg, Germany
| | - Susan Trumbore
- Max Planck Institute for Biogeochemistry, D-07745 Jena, Germany
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Sternwartestr 15, 6020 Innsbruck, Austria
| | - Christiane Werner
- Ecosystem Physiology, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Marco M Lehmann
- Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
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Honeker LK, Pugliese G, Ingrisch J, Fudyma J, Gil-Loaiza J, Carpenter E, Singer E, Hildebrand G, Shi L, Hoyt DW, Chu RK, Toyoda J, Krechmer JE, Claflin MS, Ayala-Ortiz C, Freire-Zapata V, Pfannerstill EY, Daber LE, Meeran K, Dippold MA, Kreuzwieser J, Williams J, Ladd SN, Werner C, Tfaily MM, Meredith LK. Author Correction: Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest. Nat Microbiol 2024; 9:1146-1147. [PMID: 37803148 PMCID: PMC10994830 DOI: 10.1038/s41564-023-01507-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Affiliation(s)
- Linnea K Honeker
- Biosphere 2, University of Arizona, Tucson, AZ, USA
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Giovanni Pugliese
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Department of Ecology, Universität Innsbruck, Innsbruck, Austria
| | - Jane Fudyma
- Department of Environmental Sciences, University of Arizona, Tucson, AZ, USA
- Department of Plant Pathology, University of California, Davis, CA, USA
| | - Juliana Gil-Loaiza
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | | | | | - Gina Hildebrand
- Department of Environmental Sciences, University of Arizona, Tucson, AZ, USA
| | - Lingling Shi
- Geo-Biosphere Interactions, Department of Geosciences, University of Tuebingen, Tuebingen, Germany
| | - David W Hoyt
- Environmental Molecular Science Laboratory (EMSL), Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Rosalie K Chu
- Environmental Molecular Science Laboratory (EMSL), Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jason Toyoda
- Environmental Molecular Science Laboratory (EMSL), Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jordan E Krechmer
- Aerodyne Research, Inc., Billerica, MA, USA
- Bruker Daltonics Inc., Billerica, MA, USA
| | | | | | | | - Eva Y Pfannerstill
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - L Erik Daber
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | | | - Michaela A Dippold
- Geo-Biosphere Interactions, Department of Geosciences, University of Tuebingen, Tuebingen, Germany
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Jonathan Williams
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
| | - S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Malak M Tfaily
- Department of Environmental Sciences, University of Arizona, Tucson, AZ, USA
| | - Laura K Meredith
- Biosphere 2, University of Arizona, Tucson, AZ, USA.
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA.
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3
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Smith MD, Wilkins KD, Holdrege MC, Wilfahrt P, Collins SL, Knapp AK, Sala OE, Dukes JS, Phillips RP, Yahdjian L, Gherardi LA, Ohlert T, Beier C, Fraser LH, Jentsch A, Loik ME, Maestre FT, Power SA, Yu Q, Felton AJ, Munson SM, Luo Y, Abdoli H, Abedi M, Alados CL, Alberti J, Alon M, An H, Anacker B, Anderson M, Auge H, Bachle S, Bahalkeh K, Bahn M, Batbaatar A, Bauerle T, Beard KH, Behn K, Beil I, Biancari L, Blindow I, Bondaruk VF, Borer ET, Bork EW, Bruschetti CM, Byrne KM, Cahill Jr. JF, Calvo DA, Carbognani M, Cardoni A, Carlyle CN, Castillo-Garcia M, Chang SX, Chieppa J, Cianciaruso MV, Cohen O, Cordeiro AL, Cusack DF, Dahlke S, Daleo P, D'Antonio CM, Dietterich LH, S. Doherty T, Dubbert M, Ebeling A, Eisenhauer N, Fischer FM, Forte TGW, Gebauer T, Gozalo B, Greenville AC, Guidoni-Martins KG, Hannusch HJ, Vatsø Haugum S, Hautier Y, Hefting M, Henry HAL, Hoss D, Ingrisch J, Iribarne O, Isbell F, Johnson Y, Jordan S, Kelly EF, Kimmel K, Kreyling J, Kröel-Dulay G, Kröpfl A, Kübert A, Kulmatiski A, Lamb EG, Larsen KS, Larson J, Lawson J, Leder CV, Linstädter A, Liu J, Liu S, Lodge AG, Longo G, Loydi A, Luan J, Curtis Lubbe F, Macfarlane C, Mackie-Haas K, Malyshev AV, Maturano-Ruiz A, Merchant T, Metcalfe DB, Mori AS, Mudongo E, Newman GS, Nielsen UN, Nimmo D, Niu Y, Nobre P, O'Connor RC, Ogaya R, Oñatibia GR, Orbán I, Osborne B, Otfinowski R, Pärtel M, Penuelas J, Peri PL, Peter G, Petraglia A, Picon-Cochard C, Pillar VD, Piñeiro-Guerra JM, Ploughe LW, Plowes RM, Portales-Reyes C, Prober SM, Pueyo Y, Reed SC, Ritchie EG, Rodríguez DA, Rogers WE, Roscher C, Sánchez AM, Santos BA, Cecilia Scarfó M, Seabloom EW, Shi B, Souza L, Stampfli A, Standish RJ, Sternberg M, Sun W, Sünnemann M, Tedder M, Thorvaldsen P, Tian D, Tielbörger K, Valdecantos A, van den Brink L, Vandvik V, Vankoughnett MR, Guri Velle L, Wang C, Wang Y, Wardle GM, Werner C, Wei C, Wiehl G, Williams JL, Wolf AA, Zeiter M, Zhang F, Zhu J, Zong N, Zuo X. Extreme drought impacts have been underestimated in grasslands and shrublands globally. Proc Natl Acad Sci U S A 2024; 121:e2309881120. [PMID: 38190514 PMCID: PMC10823251 DOI: 10.1073/pnas.2309881120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 10/06/2023] [Indexed: 01/10/2024] Open
Abstract
Climate change is increasing the frequency and severity of short-term (~1 y) drought events-the most common duration of drought-globally. Yet the impact of this intensification of drought on ecosystem functioning remains poorly resolved. This is due in part to the widely disparate approaches ecologists have employed to study drought, variation in the severity and duration of drought studied, and differences among ecosystems in vegetation, edaphic and climatic attributes that can mediate drought impacts. To overcome these problems and better identify the factors that modulate drought responses, we used a coordinated distributed experiment to quantify the impact of short-term drought on grassland and shrubland ecosystems. With a standardized approach, we imposed ~a single year of drought at 100 sites on six continents. Here we show that loss of a foundational ecosystem function-aboveground net primary production (ANPP)-was 60% greater at sites that experienced statistically extreme drought (1-in-100-y event) vs. those sites where drought was nominal (historically more common) in magnitude (35% vs. 21%, respectively). This reduction in a key carbon cycle process with a single year of extreme drought greatly exceeds previously reported losses for grasslands and shrublands. Our global experiment also revealed high variability in drought response but that relative reductions in ANPP were greater in drier ecosystems and those with fewer plant species. Overall, our results demonstrate with unprecedented rigor that the global impacts of projected increases in drought severity have been significantly underestimated and that drier and less diverse sites are likely to be most vulnerable to extreme drought.
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Affiliation(s)
- Melinda D. Smith
- Department of Biology, Colorado State University, Fort Collins, CO80523
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO80523
| | | | - Martin C. Holdrege
- Department of Wildland Resource and the Ecology Center, Utah State University, Logan, UT84322
| | - Peter Wilfahrt
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN55108
| | - Scott L. Collins
- Department of Biology, University of New Mexico, Albuquerque, NM87131
| | - Alan K. Knapp
- Department of Biology, Colorado State University, Fort Collins, CO80523
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO80523
| | - Osvaldo E. Sala
- School of Life Sciences, Global Drylands Center, Arizona State University, Tempe, AZ85281
| | - Jeffrey S. Dukes
- Department of Global Ecology, Carnegie Institution for Science, Stanford, CA94305
| | | | - Laura Yahdjian
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), National Scientific and Technical Research Council (CONICET), Faculty of Agronomy, University of Buenos Aires, Buenos AiresC1417DSE, Argentina
| | - Laureano A. Gherardi
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA94720
| | - Timothy Ohlert
- Department of Biology, Colorado State University, Fort Collins, CO80523
| | - Claus Beier
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Frederiksberg C1958, Denmark
| | - Lauchlan H. Fraser
- Department of Natural Resource Science, Thompson Rivers University, Kamloops, BCV2C 0C8, Canada
| | - Anke Jentsch
- Department of Disturbance Ecology and Vegetation Dynamics, Bayreuth Center of Ecology and Environmental Research, University of Bayreuth, Bayreuth95447, Germany
| | - Michael E. Loik
- Department of Environmental Studies, University of California, Santa Cruz, CA95064
| | - Fernando T. Maestre
- Departamento de Ecologia, Universidad de Alicante, 03690 Alicante, Spain
- Instituto Multidisciplinar para el Estudio del Medio “Ramón Margalef”, Universidad de Alicante, 03690 Alicante, Spain
| | - Sally A. Power
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW2751, Australia
| | - Qiang Yu
- School of Grassland Science, Beijing Forestry University, Beijing100083, China
| | - Andrew J. Felton
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT59717
| | - Seth M. Munson
- U.S. Geological Survey, Southwest Biological Science Center, Flagstaff, AZ86001
| | - Yiqi Luo
- Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, NY14853
| | - Hamed Abdoli
- Department of Range Management, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor46417-76489, Iran
| | - Mehdi Abedi
- Department of Range Management, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor46417-76489, Iran
| | - Concepción L. Alados
- Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (CSIC), Zaragoza50059, Spain
| | - Juan Alberti
- Laboratorio de Ecología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigación Ciencia y Técnica (CONICET), CC 1260 Correo Central, Mar del PlataB7600WAG, Argentina
| | - Moshe Alon
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv69978, Israel
| | - Hui An
- School of Ecology and Environment, Ningxia University, Yinchuan750021, China
| | - Brian Anacker
- City of Boulder Open Space and Mountain Parks, Boulder, CO80301
| | - Maggie Anderson
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN55108
| | - Harald Auge
- Department of Community Ecology, Helmholtz-Centre for Environmental Research–UFZ, Halle06120, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig04103, Germany
| | - Seton Bachle
- Division of Biology, Kansas State University, Manhattan, KS66506
- LI-COR Biosciences, 4647 Superior Street, Lincoln, NE68505
| | - Khadijeh Bahalkeh
- Department of Range Management, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor46417-76489, Iran
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Innsbruck6020, Austria
| | - Amgaa Batbaatar
- Department of Biological Sciences, University of Alberta, Edmonton, ABT6G 2E9, Canada
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, ABT6G 2P5, Canada
| | - Taryn Bauerle
- Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, NY14853
| | - Karen H. Beard
- Department of Wildland Resource and the Ecology Center, Utah State University, Logan, UT84322
| | - Kai Behn
- Institute of Crop Science and Resource Conservation, Department of Plant Nutrition, University of Bonn, Bonn53115, Germany
| | - Ilka Beil
- Institute of Botany and Landscape Ecology, Department of Experimental Plant Ecology, University of Greifswald, GreifswaldD-17498, Germany
| | - Lucio Biancari
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), National Scientific and Technical Research Council (CONICET), Faculty of Agronomy, University of Buenos Aires, Buenos AiresC1417DSE, Argentina
| | - Irmgard Blindow
- Biological Station of Hiddensee, Department of Biology, University of Greifswald, KlosterD-18565, Germany
| | - Viviana Florencia Bondaruk
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), National Scientific and Technical Research Council (CONICET), Faculty of Agronomy, University of Buenos Aires, Buenos AiresC1417DSE, Argentina
| | - Elizabeth T. Borer
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN55108
| | - Edward W. Bork
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, ABT6G 2P5, Canada
| | - Carlos Martin Bruschetti
- Laboratorio de Ecología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigación Ciencia y Técnica (CONICET), CC 1260 Correo Central, Mar del PlataB7600WAG, Argentina
| | - Kerry M. Byrne
- Department of Environmental Science and Management, California State Polytechnic University, Humboldt, Arcata, CA95521
| | - James F. Cahill Jr.
- Department of Biological Sciences, University of Alberta, Edmonton, ABT6G 2E9, Canada
| | - Dianela A. Calvo
- Universidad Nacional de Río Negro, Centro de Estudios Ambientales desde la NorPatagonia (CEANPa), Sede Atlántica–CONICET, Viedma8500, Argentina
| | - Michele Carbognani
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, ParmaI-43124, Italy
| | - Augusto Cardoni
- Laboratorio de Ecología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigación Ciencia y Técnica (CONICET), CC 1260 Correo Central, Mar del PlataB7600WAG, Argentina
| | - Cameron N. Carlyle
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, ABT6G 2P5, Canada
| | - Miguel Castillo-Garcia
- Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (CSIC), Zaragoza50059, Spain
| | - Scott X. Chang
- Department of Renewable Resources, University of Alberta, Edmonton, ABT6G 2E3, Canada
| | - Jeff Chieppa
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW2751, Australia
| | | | - Ofer Cohen
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv69978, Israel
| | - Amanda L. Cordeiro
- Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO80523
| | - Daniela F. Cusack
- Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO80523
| | - Sven Dahlke
- Biological Station of Hiddensee, Department of Biology, University of Greifswald, KlosterD-18565, Germany
| | - Pedro Daleo
- Laboratorio de Ecología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigación Ciencia y Técnica (CONICET), CC 1260 Correo Central, Mar del PlataB7600WAG, Argentina
| | - Carla M. D'Antonio
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA93106
| | - Lee H. Dietterich
- Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO80523
- US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS39180
| | - Tim S. Doherty
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, NSW2006, Australia
| | - Maren Dubbert
- Isotope Biogeochemistry and GasFluxes, Leibniz-Zentrum fürAgrarlandschaftsforschung (ZALF), Müncheberg15374, Germany
| | - Anne Ebeling
- Institute of Ecology and Evolution, Friedrich Schiller University Jena, Jena07743, Germany
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig04103, Germany
- Institute of Biology, Leipzig University, Leipzig04103, Germany
| | - Felícia M. Fischer
- Institute of Biology, Leipzig University, Leipzig04103, Germany
- Centro de Investigaciones sobre Desertificación, Consejo Superior de Investigaciones Científicas (CSIC)-Universitat Valencia (UV) - Generalitat Valenciana (GV),Valencia46113, Spain
| | - T'ai G. W. Forte
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, ParmaI-43124, Italy
| | - Tobias Gebauer
- Geobotany, Faculty of Biology, University of Freiburg, FreiburgD-79104, Germany
| | - Beatriz Gozalo
- Instituto Multidisciplinar para el Estudio del Medio “Ramón Margalef”, Universidad de Alicante, 03690 Alicante, Spain
| | - Aaron C. Greenville
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, NSW2006, Australia
| | | | - Heather J. Hannusch
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX77843
| | - Siri Vatsø Haugum
- Department of Biological Sciences, University of Bergen, Bergen5007, Norway
| | - Yann Hautier
- Ecology and Biodiversity Group, Department of Biology, Utrecht University, Utrecht, 3584 CH, Netherlands
| | - Mariet Hefting
- Ecology and Biodiversity Group, Department of Biology, Utrecht University, Utrecht, 3584 CH, Netherlands
| | - Hugh A. L. Henry
- Department of Biology, University of Western Ontario, London, ONN6A 5B7, Canada
| | - Daniela Hoss
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig04103, Germany
- Institute of Biology, Leipzig University, Leipzig04103, Germany
- Department of Ecology, Universidade Federal do Rio Grande do Sul, Porto Alegre91501-970, Brazil
| | - Johannes Ingrisch
- Department of Ecology, University of Innsbruck, Innsbruck6020, Austria
| | - Oscar Iribarne
- Laboratorio de Ecología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigación Ciencia y Técnica (CONICET), CC 1260 Correo Central, Mar del PlataB7600WAG, Argentina
| | - Forest Isbell
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN55108
| | - Yari Johnson
- U.S. Army Corps of Engineers, Sacramento, CA95814
| | - Samuel Jordan
- School of Life Sciences, Global Drylands Center, Arizona State University, Tempe, AZ85281
| | - Eugene F. Kelly
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO80523
| | - Kaitlin Kimmel
- Global Water Security Center, The University of Alabama, Tuscaloosa, AL35487
| | - Juergen Kreyling
- Institute of Botany and Landscape Ecology, Department of Experimental Plant Ecology, University of Greifswald, GreifswaldD-17498, Germany
| | - György Kröel-Dulay
- Centre for Ecological Research, Institute of Ecology and Botany, Vácrátót2163, Hungary
| | - Alicia Kröpfl
- Departamento de Gestión Agropecuaria, Universidad Nacional del Comahue, Centro Universitario Regional Zona Atlántica, Viedma85009, Argentina
| | - Angelika Kübert
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg79110, Germany
| | - Andrew Kulmatiski
- Department of Wildland Resource and the Ecology Center, Utah State University, Logan, UT84322
| | - Eric G. Lamb
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SKS7N5A8, Canada
| | - Klaus Steenberg Larsen
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Frederiksberg C1958, Denmark
| | - Julie Larson
- Range and Meadow Forage Management Research, Eastern Oregon Agricultural Research Center, US Department of Agriculture (USDA)-Agricultural Research Service, Burns, OR97720
| | - Jason Lawson
- Brackenridge Field Laboratory, University of Texas, Austin, TX78747
| | - Cintia V. Leder
- Universidad Nacional de Río Negro, Centro de Estudios Ambientales desde la NorPatagonia (CEANPa), Sede Atlántica–CONICET, Viedma8500, Argentina
| | - Anja Linstädter
- Department of Biodiversity Research and Systematic Botany, University of Potsdam, Potsdam14469, Germany
| | - Jielin Liu
- Prataculture Research Institute, Heilongjiang Academy of Agricultural Sciences, Haerbin150086, China
| | - Shirong Liu
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing100091, China
| | - Alexandra G. Lodge
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX77843
| | - Grisel Longo
- Programa de Posgrado en Desarrollo y Medio Ambiente–Universidade Federal da Paraíba, Cidade Universitária, Castelo Branco, João Pessoa, PB58051-900, Brazil
| | - Alejandro Loydi
- Centro de Recursos Naturales Renovables de la Zona Semiárida–CONICET, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur,Bahía Blanca8000FTN, Argentina
| | - Junwei Luan
- Institute of Resources and Environment, International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration and Beijing for Bamboo and Rattan Science and Technology, Beijing100102, China
| | | | - Craig Macfarlane
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Environment, Wembley, WA6913, Australia
| | - Kathleen Mackie-Haas
- School of Agricultural, Forest and Food Sciences, Bern University of Applied Sciences,Zollikofen3052, Switzerland
| | - Andrey V. Malyshev
- Institute of Botany and Landscape Ecology, Department of Experimental Plant Ecology, University of Greifswald, GreifswaldD-17498, Germany
| | - Adrián Maturano-Ruiz
- Instituto Multidisciplinar para el Estudio del Medio “Ramón Margalef”, Universidad de Alicante, 03690 Alicante, Spain
| | - Thomas Merchant
- Department of Ecology and Evolutionary Biology, Institute for Arctic and Alpine Research, University of Colorado,Boulder, CO80309
| | - Daniel B. Metcalfe
- Department of Ecology and Environmental Science, Umeå University, UmeåS-901 87, Sweden
| | - Akira S. Mori
- Research Center for Advanced Science and Technology, University of Tokyo,Meguro, Tokyo153-8904, Japan
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama240-8501, Japan
| | - Edwin Mudongo
- Conservancy-Communities Living Among Wildlife Sustainably (CLAWS) Botswana, Seronga00000, Botswana
| | - Gregory S. Newman
- School of Biological Sciences, University of Oklahoma, Norman, OK73019
| | - Uffe N. Nielsen
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW2751, Australia
| | - Dale Nimmo
- Gulbali Institute, Charles Sturt University, Albury, NSW2640, Australia
| | - Yujie Niu
- Department of Disturbance Ecology and Vegetation Dynamics, Bayreuth Center of Ecology and Environmental Research, University of Bayreuth, Bayreuth95447, Germany
| | - Paola Nobre
- Department of Ecology, Universidade Federal de Goiás, Goiânia, GO74690-900, Brazil
| | - Rory C. O'Connor
- Range and Meadow Forage Management Research, Eastern Oregon Agricultural Research Center, US Department of Agriculture (USDA)-Agricultural Research Service, Burns, OR97720
| | - Romà Ogaya
- Global Ecology Unit Center for Ecological Research and Forestry Applications (CREAF)-National Research Council (CSIC)-Universitat Autonoma de Barcelona (UAB), National Research Council (CSIC), Bellaterra, Catalonia08194, Spain
- Center for Ecological Research and Forestry Applications (CREAF), Cerdanyola del Vallès, Barcelona, Catalonia08193, Spain
| | - Gastón R. Oñatibia
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), National Scientific and Technical Research Council (CONICET), Faculty of Agronomy, University of Buenos Aires, Buenos AiresC1417DSE, Argentina
| | - Ildikó Orbán
- Centre for Ecological Research, Institute of Ecology and Botany, Vácrátót2163, Hungary
- Department of Biodiversity Research and Systematic Botany, University of Potsdam, Potsdam14469, Germany
| | - Brooke Osborne
- Department of Environment and Society, Utah State University, Moab, UT84532
| | - Rafael Otfinowski
- Department of Biology, The University of Winnipeg, Winnipeg, MBR3B 2E9, Canada
| | - Meelis Pärtel
- Institute of Ecology and Earth Sciences, University of Tartu, TartuEE50409, Estonia
| | - Josep Penuelas
- Global Ecology Unit Center for Ecological Research and Forestry Applications (CREAF)-National Research Council (CSIC)-Universitat Autonoma de Barcelona (UAB), National Research Council (CSIC), Bellaterra, Catalonia08194, Spain
- Center for Ecological Research and Forestry Applications (CREAF), Cerdanyola del Vallès, Barcelona, Catalonia08193, Spain
| | - Pablo L. Peri
- Instituto Nacional de Tecnología Agropecuaria–Universidad Nacional d ela Patagonia Austral–CONICET, Río Gallegos, Caleta OliviaZ9011, Argentina
| | - Guadalupe Peter
- Universidad Nacional de Río Negro, Centro de Estudios Ambientales desde la NorPatagonia (CEANPa), Sede Atlántica–CONICET, Viedma8500, Argentina
| | - Alessandro Petraglia
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, ParmaI-43124, Italy
| | - Catherine Picon-Cochard
- Université Clermont Auvergne, National Research Institute for Agriculture, Food and the Environment, VetAgro Sup, Research Unit for Grassland Ecosystems, Clermont-Ferrand63000, France
| | - Valério D. Pillar
- Department of Ecology, Universidade Federal do Rio Grande do Sul, Porto Alegre91501-970, Brazil
| | - Juan Manuel Piñeiro-Guerra
- Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA), National Scientific and Technical Research Council (CONICET), Faculty of Agronomy, University of Buenos Aires, Buenos AiresC1417DSE, Argentina
- Laboratório de Ecologia Aplicada e Conservação, Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Cidade Universitária, Castelo Branco, João Pessoa, PB58051-900, Brazil
| | - Laura W. Ploughe
- Department of Biological Sciences, Purdue University, West Lafayette, IN47907
| | - Robert M. Plowes
- Brackenridge Field Laboratory, University of Texas, Austin, TX78747
| | | | - Suzanne M. Prober
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Environment, Wembley, WA6913, Australia
| | - Yolanda Pueyo
- Departamento de Biodiversidad y Restauración, Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (CSIC), Zaragoza50059, Spain
| | - Sasha C. Reed
- U.S. Geological Survey, Southwest Biological Science Center, Moab, UT84532
| | - Euan G. Ritchie
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Burwood, VIC3125, Australia
| | - Dana Aylén Rodríguez
- Centro de Recursos Naturales Renovables de la Zona Semiárida–CONICET, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur,Bahía Blanca8000FTN, Argentina
| | - William E. Rogers
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX77843
| | - Christiane Roscher
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig04103, Germany
- Department of Physiological Diversity, Helmholtz-Centre for Environmental Research–UFZ, Leipzig04318, Germany
| | - Ana M. Sánchez
- Department of Biology and Geology, Rey Juan Carlos University, Madrid28032, Spain
| | - Bráulio A. Santos
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, Cidade Universitária, Castelo Branco, João Pessoa, PB58051-900, Brazil
| | - María Cecilia Scarfó
- Centro de Recursos Naturales Renovables de la Zona Semiárida–CONICET, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur,Bahía Blanca8000FTN, Argentina
| | - Eric W. Seabloom
- Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN55108
| | - Baoku Shi
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun130024, China
| | - Lara Souza
- School of Biological Sciences, University of Oklahoma, Norman, OK73019
- Oklahoma Biological Survey, University of Oklahoma, Norman, OK73019
| | - Andreas Stampfli
- School of Agricultural, Forest and Food Sciences, Bern University of Applied Sciences,Zollikofen3052, Switzerland
- Institute of Plant Sciences, University of Bern, Bern3013, Switzerland
- Oeschger Center for Climate Change Research, University of Bern, Bern3012, Switzerland
| | - Rachel J. Standish
- Institute of Plant Sciences, University of Bern, Bern3013, Switzerland
- Environmental and Conservation Sciences, Murdoch University,Murdoch, WA6150, Australia
| | - Marcelo Sternberg
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv69978, Israel
| | - Wei Sun
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology of the Ministry of Education, Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun130024, China
| | - Marie Sünnemann
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig04103, Germany
- Institute of Biology, Leipzig University, Leipzig04103, Germany
| | - Michelle Tedder
- School of Life Sciences, University of Kwazulu-Natal, Pietermaritzburg3201, South Africa
| | - Pål Thorvaldsen
- Norwegian Institute of Bioeconomy Research, Department of Landscape and Biodiversity, Tjøtta8860, Norway
| | - Dashuan Tian
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing100101, China
| | - Katja Tielbörger
- Plant Ecology Group, Department of Biology, University of Tübingen, Tübingen72076, Germany
| | - Alejandro Valdecantos
- Departamento de Ecologia, Universidad de Alicante, 03690 Alicante, Spain
- Instituto Multidisciplinar para el Estudio del Medio “Ramón Margalef”, Universidad de Alicante, 03690 Alicante, Spain
| | - Liesbeth van den Brink
- Plant Ecology Group, Department of Biology, University of Tübingen, Tübingen72076, Germany
| | - Vigdis Vandvik
- Department of Biological Sciences, University of Bergen, Bergen5007, Norway
| | - Mathew R. Vankoughnett
- Nova Scotia Community College, Annapolis Valley Campus, Applied Research, Middleton,NSB0S 1P0, Canada
| | | | - Changhui Wang
- College of Grassland Science, Shanxi Agricultural University, Jinzhong030801, China
| | - Yi Wang
- Institute of Resources and Environment, International Centre for Bamboo and Rattan, Key Laboratory of National Forestry and Grassland Administration and Beijing for Bamboo and Rattan Science and Technology, Beijing100102, China
| | - Glenda M. Wardle
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, NSW2006, Australia
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg79110, Germany
| | - Cunzheng Wei
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing100093, China
| | - Georg Wiehl
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Environment, Wembley, WA6913, Australia
| | - Jennifer L. Williams
- Department of Geography and Biodiversity Research Centre, University of British Columbia, Vancouver, BCV6T 1Z4, Canada
| | - Amelia A. Wolf
- Department of Integrative Biology, University of Texas, Austin, TX78712
| | - Michaela Zeiter
- School of Agricultural, Forest and Food Sciences, Bern University of Applied Sciences,Zollikofen3052, Switzerland
- Institute of Plant Sciences, University of Bern, Bern3013, Switzerland
- Oeschger Center for Climate Change Research, University of Bern, Bern3012, Switzerland
| | - Fawei Zhang
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai810008, China
| | - Juntao Zhu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing100101, China
| | - Ning Zong
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing100101, China
| | - Xiaoan Zuo
- Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou730000, China
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4
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Ladd SN, Daber LE, Bamberger I, Kübert A, Kreuzwieser J, Purser G, Ingrisch J, Deleeuw J, van Haren J, Meredith LK, Werner C. Leaf-level metabolic changes in response to drought affect daytime CO2 emission and isoprenoid synthesis pathways. Tree Physiol 2023; 43:1917-1932. [PMID: 37552065 PMCID: PMC10643046 DOI: 10.1093/treephys/tpad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/28/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
In the near future, climate change will cause enhanced frequency and/or severity of droughts in terrestrial ecosystems, including tropical forests. Drought responses by tropical trees may affect their carbon use, including production of volatile organic compounds (VOCs), with implications for carbon cycling and atmospheric chemistry that are challenging to predict. It remains unclear how metabolic adjustments by mature tropical trees in response to drought will affect their carbon fluxes associated with daytime CO2 production and VOC emission. To address this gap, we used position-specific 13C-pyruvate labeling to investigate leaf CO2 and VOC fluxes from four tropical species before and during a controlled drought in the enclosed rainforest of Biosphere 2 (B2). Overall, plants that were more drought-sensitive had greater reductions in daytime CO2 production. Although daytime CO2 production was always dominated by non-mitochondrial processes, the relative contribution of CO2 from the tricarboxylic acid cycle tended to increase under drought. A notable exception was the legume tree Clitoria fairchildiana R.A. Howard, which had less anabolic CO2 production than the other species even under pre-drought conditions, perhaps due to more efficient refixation of CO2 and anaplerotic use for amino acid synthesis. The C. fairchildiana was also the only species to allocate detectable amounts of 13C label to VOCs and was a major source of VOCs in B2. In C. fairchildiana leaves, our data indicate that intermediates from the mevalonic acid (MVA) pathway are used to produce the volatile monoterpene trans-β-ocimene, but not isoprene. This apparent crosstalk between the MVA and methylerythritol phosphate pathways for monoterpene synthesis declined with drought. Finally, although trans-β-ocimene emissions increased under drought, it was increasingly sourced from stored intermediates and not de novo synthesis. Unique metabolic responses of legumes may play a disproportionate role in the overall changes in daytime CO2 and VOC fluxes in tropical forests experiencing drought.
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Affiliation(s)
- S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, Basel 4056, Switzerland
| | - L Erik Daber
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
| | - Ines Bamberger
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Atmospheric Chemistry Group, University of Bayreuth (BayCEER), Dr–Hans–Frisch–Straße 1–3, Bayreuth 95448, Germany
| | - Angelika Kübert
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Institute for Atmospheric and Earth System Research, University of Helsinki, Pietari Kalmin katu 5, Helsinki 00014, Finland
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
| | - Gemma Purser
- School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK
- UK Centre for Ecology & Hydrology, Bush Estate, Penicuik EH26 0QB, UK
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
- Department of Ecology, University of Innsbruck, Sternwartestrasse 15, Innsbruck 6020, Austria
| | - Jason Deleeuw
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
| | - Joost van Haren
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- Honors College, University of Arizona, 1101 E. Mabel Street, Tucson, AZ 85719, USA
| | - Laura K Meredith
- Biosphere 2, University of Arizona, 32540 S. Biosphere Rd, Oracle, AZ 85739, USA
- School of Natural Resources and the Environment, University of Arizona, 1064 E. Lowell St., Tucson, AZ, 85721, USA
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Georges–Köhler–Allee 053/054, Freiburg 79110, Germany
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5
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Pugliese G, Ingrisch J, Meredith LK, Pfannerstill EY, Klüpfel T, Meeran K, Byron J, Purser G, Gil-Loaiza J, van Haren J, Dontsova K, Kreuzwieser J, Ladd SN, Werner C, Williams J. Author Correction: Effects of drought and recovery on soil volatile organic compound fluxes in an experimental rainforest. Nat Commun 2023; 14:6372. [PMID: 37821456 PMCID: PMC10567787 DOI: 10.1038/s41467-023-42207-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023] Open
Affiliation(s)
- Giovanni Pugliese
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany.
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Universität Innsbruck, Department of Ecology, Innsbruck, Austria
| | - Laura K Meredith
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
- Biosphere 2, University of Arizona, Oracle, AZ, USA
| | - Eva Y Pfannerstill
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
- Department of Environmental Science, Policy, and Management, University of California at Berkeley, Berkeley, CA, USA
| | - Thomas Klüpfel
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | | | - Joseph Byron
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Gemma Purser
- UK Centre for Ecology & Hydrology, Penicuik, Edinburgh, UK
- School of Chemistry, The University of Edinburgh, Edinburgh, UK
| | - Juliana Gil-Loaiza
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Joost van Haren
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
- Biosphere 2, University of Arizona, Oracle, AZ, USA
| | - Katerina Dontsova
- Biosphere 2, University of Arizona, Oracle, AZ, USA
- Department of Environmental Science, University of Arizona, Tucson, AZ, USA
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Jonathan Williams
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
- Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus
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6
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Meeran K, Verbrigghe N, Ingrisch J, Fuchslueger L, Müller L, Sigurðsson P, Sigurdsson BD, Wachter H, Watzka M, Soong JL, Vicca S, Janssens IA, Bahn M. Individual and interactive effects of warming and nitrogen supply on CO 2 fluxes and carbon allocation in subarctic grassland. Glob Chang Biol 2023; 29:5276-5291. [PMID: 37427494 PMCID: PMC10962691 DOI: 10.1111/gcb.16851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 05/21/2023] [Indexed: 07/11/2023]
Abstract
Climate warming has been suggested to impact high latitude grasslands severely, potentially causing considerable carbon (C) losses from soil. Warming can also stimulate nitrogen (N) turnover, but it is largely unclear whether and how altered N availability impacts belowground C dynamics. Even less is known about the individual and interactive effects of warming and N availability on the fate of recently photosynthesized C in soil. On a 10-year geothermal warming gradient in Iceland, we studied the effects of soil warming and N addition on CO2 fluxes and the fate of recently photosynthesized C through CO2 flux measurements and a 13 CO2 pulse-labeling experiment. Under warming, ecosystem respiration exceeded maximum gross primary productivity, causing increased net CO2 emissions. N addition treatments revealed that, surprisingly, the plants in the warmed soil were N limited, which constrained primary productivity and decreased recently assimilated C in shoots and roots. In soil, microbes were increasingly C limited under warming and increased microbial uptake of recent C. Soil respiration was increased by warming and was fueled by increased belowground inputs and turnover of recently photosynthesized C. Our findings suggest that a decade of warming seemed to have induced a N limitation in plants and a C limitation by soil microbes. This caused a decrease in net ecosystem CO2 uptake and accelerated the respiratory release of photosynthesized C, which decreased the C sequestration potential of the grassland. Our study highlights the importance of belowground C allocation and C-N interactions in the C dynamics of subarctic ecosystems in a warmer world.
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Affiliation(s)
| | - Niel Verbrigghe
- Research Group Plants and EcosystemsUniversity of AntwerpAntwerpBelgium
| | | | - Lucia Fuchslueger
- Research Group Plants and EcosystemsUniversity of AntwerpAntwerpBelgium
- Centre for Microbiology and Environmental Systems ScienceUniversity of ViennaViennaAustria
| | - Lena Müller
- Department of EcologyUniversity of InnsbruckInnsbruckAustria
| | | | | | - Herbert Wachter
- Department of EcologyUniversity of InnsbruckInnsbruckAustria
| | - Margarete Watzka
- Centre for Microbiology and Environmental Systems ScienceUniversity of ViennaViennaAustria
| | - Jennifer L. Soong
- Research Group Plants and EcosystemsUniversity of AntwerpAntwerpBelgium
- Soil and Crop Sciences DepartmentColorado State UniversityFort CollinsColoradoUSA
| | - Sara Vicca
- Research Group Plants and EcosystemsUniversity of AntwerpAntwerpBelgium
| | - Ivan A. Janssens
- Research Group Plants and EcosystemsUniversity of AntwerpAntwerpBelgium
| | - Michael Bahn
- Department of EcologyUniversity of InnsbruckInnsbruckAustria
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7
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Pugliese G, Ingrisch J, Meredith LK, Pfannerstill EY, Klüpfel T, Meeran K, Byron J, Purser G, Gil-Loaiza J, van Haren J, Dontsova K, Kreuzwieser J, Ladd SN, Werner C, Williams J. Effects of drought and recovery on soil volatile organic compound fluxes in an experimental rainforest. Nat Commun 2023; 14:5064. [PMID: 37604817 PMCID: PMC10442410 DOI: 10.1038/s41467-023-40661-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 08/02/2023] [Indexed: 08/23/2023] Open
Abstract
Drought can affect the capacity of soils to emit and consume biogenic volatile organic compounds (VOCs). Here we show the impact of prolonged drought followed by rewetting and recovery on soil VOC fluxes in an experimental rainforest. Under wet conditions the rainforest soil acts as a net VOC sink, in particular for isoprenoids, carbonyls and alcohols. The sink capacity progressively decreases during drought, and at soil moistures below ~19%, the soil becomes a source of several VOCs. Position specific 13C-pyruvate labeling experiments reveal that soil microbes are responsible for the emissions and that the VOC production is higher during drought. Soil rewetting induces a rapid and short abiotic emission peak of carbonyl compounds, and a slow and long biotic emission peak of sulfur-containing compounds. Results show that, the extended drought periods predicted for tropical rainforest regions will strongly affect soil VOC fluxes thereby impacting atmospheric chemistry and climate.
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Affiliation(s)
- Giovanni Pugliese
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany.
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Universität Innsbruck, Department of Ecology, Innsbruck, Austria
| | - Laura K Meredith
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
- Biosphere 2, University of Arizona, Oracle, AZ, USA
| | - Eva Y Pfannerstill
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
- Department of Environmental Science, Policy, and Management, University of California at Berkeley, Berkeley, CA, USA
| | - Thomas Klüpfel
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | | | - Joseph Byron
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Gemma Purser
- UK Centre for Ecology & Hydrology, Penicuik, Edinburgh, UK
- School of Chemistry, The University of Edinburgh, Edinburgh, UK
| | - Juliana Gil-Loaiza
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Joost van Haren
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
- Biosphere 2, University of Arizona, Oracle, AZ, USA
| | - Katerina Dontsova
- Biosphere 2, University of Arizona, Oracle, AZ, USA
- Department of Environmental Science, University of Arizona, Tucson, AZ, USA
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Jonathan Williams
- Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
- Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus
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8
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Honeker LK, Pugliese G, Ingrisch J, Fudyma J, Gil-Loaiza J, Carpenter E, Singer E, Hildebrand G, Shi L, Hoyt DW, Chu RK, Toyoda J, Krechmer JE, Claflin MS, Ayala-Ortiz C, Freire-Zapata V, Pfannerstill EY, Daber LE, Meeran K, Dippold MA, Kreuzwieser J, Williams J, Ladd SN, Werner C, Tfaily MM, Meredith LK. Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest. Nat Microbiol 2023; 8:1480-1494. [PMID: 37524975 PMCID: PMC10390333 DOI: 10.1038/s41564-023-01432-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 06/19/2023] [Indexed: 08/02/2023]
Abstract
Drought impacts on microbial activity can alter soil carbon fate and lead to the loss of stored carbon to the atmosphere as CO2 and volatile organic compounds (VOCs). Here we examined drought impacts on carbon allocation by soil microbes in the Biosphere 2 artificial tropical rainforest by tracking 13C from position-specific 13C-pyruvate into CO2 and VOCs in parallel with multi-omics. During drought, efflux of 13C-enriched acetate, acetone and C4H6O2 (diacetyl) increased. These changes represent increased production and buildup of intermediate metabolites driven by decreased carbon cycling efficiency. Simultaneously,13C-CO2 efflux decreased, driven by a decrease in microbial activity. However, the microbial carbon allocation to energy gain relative to biosynthesis was unchanged, signifying maintained energy demand for biosynthesis of VOCs and other drought-stress-induced pathways. Overall, while carbon loss to the atmosphere via CO2 decreased during drought, carbon loss via efflux of VOCs increased, indicating microbially induced shifts in soil carbon fate.
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Affiliation(s)
- Linnea K Honeker
- Biosphere 2, University of Arizona, Tucson, AZ, USA
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Giovanni Pugliese
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Department of Ecology, Universität Innsbruck, Innsbruck, Austria
| | - Jane Fudyma
- Department of Environmental Sciences, University of Arizona, Tucson, AZ, USA
- Department of Plant Pathology, University of California, Davis, CA, USA
| | - Juliana Gil-Loaiza
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | | | | | - Gina Hildebrand
- Department of Environmental Sciences, University of Arizona, Tucson, AZ, USA
| | - Lingling Shi
- Geo-Biosphere Interactions, Department of Geosciences, University of Tuebingen, Tuebingen, Germany
| | - David W Hoyt
- Environmental Molecular Science Laboratory (EMSL), Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Rosalie K Chu
- Environmental Molecular Science Laboratory (EMSL), Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jason Toyoda
- Environmental Molecular Science Laboratory (EMSL), Earth and Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jordan E Krechmer
- Aerodyne Research, Inc., Billerica, MA, USA
- Bruker Daltonics Inc., Billerica, MA, USA
| | | | | | | | - Eva Y Pfannerstill
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - L Erik Daber
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | | | - Michaela A Dippold
- Geo-Biosphere Interactions, Department of Geosciences, University of Tuebingen, Tuebingen, Germany
| | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Jonathan Williams
- Max Planck Institute for Chemistry, Atmospheric Chemistry Department, Mainz, Germany
| | - S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
| | - Malak M Tfaily
- Department of Environmental Sciences, University of Arizona, Tucson, AZ, USA
| | - Laura K Meredith
- Biosphere 2, University of Arizona, Tucson, AZ, USA.
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA.
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9
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Ingrisch J, Umlauf N, Bahn M. Functional thresholds alter the relationship of plant resistance and recovery to drought. Ecology 2023; 104:e3907. [PMID: 36314950 PMCID: PMC10078541 DOI: 10.1002/ecy.3907] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/13/2022] [Accepted: 08/29/2022] [Indexed: 02/03/2023]
Abstract
The ecological consequences of future droughts are difficult to predict due to a limited understanding of the nonlinear responses of plants to increasing drought intensity, which can change abruptly when critical thresholds of drought intensity are crossed. Drought responses are composed of resistance and postdrought recovery. Although it is well established that higher drought intensity increases the impact and, thus, reduces plant resistance, less is known about how drought intensity affects recovery and how resistance and recovery are related. In this study, we tested the hypothesis that resistance, recovery, and their relationship change abruptly upon crossing critical thresholds of drought intensity. We exposed mesocosms of two monospecific stands of the common grassland species Dactylis glomerata and Plantago lanceolata to a large gradient of drought intensity and quantified the resistance and recovery of multiple measures of plant productivity, including gross-primary productivity, vegetative height, Normalized Difference Vegetation Index, and aboveground biomass production. Drought intensity had nonlinear and contrasting effects on plant productivity during drought and recovery, which differed between the two species. Increasing drought intensity decreased the resistance of plant productivity and caused rapid compensatory growth during postdrought recovery, the degree of which was highly dependent on drought intensity. Across multiple response parameters two thresholds of drought intensity emerged, upon which we observed abrupt changes in plant resistance and recovery, as well as their relationship. We conclude that across gradients of drought intensity resistance and recovery are tightly coupled and that both the magnitude and the direction of drought effects on resistance and recovery can change abruptly upon specific thresholds of stress intensity. These findings highlight the urgent need to account for nonlinear responses of resistance and recovery to drought intensity as critical drivers of productivity in a changing climate.
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Affiliation(s)
| | - Nikolaus Umlauf
- Department of Statistics, University of Innsbruck, Innsbruck, Austria
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
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10
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Werner C, Meredith LK, Ladd SN, Ingrisch J, Kübert A, van Haren J, Bahn M, Bailey K, Bamberger I, Beyer M, Blomdahl D, Byron J, Daber E, Deleeuw J, Dippold MA, Fudyma J, Gil-Loaiza J, Honeker LK, Hu J, Huang J, Klüpfel T, Krechmer J, Kreuzwieser J, Kühnhammer K, Lehmann MM, Meeran K, Misztal PK, Ng WR, Pfannerstill E, Pugliese G, Purser G, Roscioli J, Shi L, Tfaily M, Williams J. Ecosystem fluxes during drought and recovery in an experimental forest. Science 2021; 374:1514-1518. [PMID: 34914503 DOI: 10.1126/science.abj6789] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Christiane Werner
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Laura K Meredith
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA.,Biosphere 2, University of Arizona, Oracle, AZ, USA.,BIO5 Institute, The University of Arizona, Tucson, AZ, USA
| | - S Nemiah Ladd
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Johannes Ingrisch
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany.,Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Angelika Kübert
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Joost van Haren
- Biosphere 2, University of Arizona, Oracle, AZ, USA.,Honors College, University of Arizona, Tucson, AZ, USA
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Kinzie Bailey
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Ines Bamberger
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Matthias Beyer
- Institute of Geoecology - Environmental Geochemistry, Technical University Braunschweig, Braunschweig, Germany
| | - Daniel Blomdahl
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, TX, USA
| | - Joseph Byron
- Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
| | - Erik Daber
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | | | - Michaela A Dippold
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen, Germany.,Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany
| | - Jane Fudyma
- Department of Environmental Science, University of Arizona, Tucson, AZ, USA
| | - Juliana Gil-Loaiza
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | | | - Jia Hu
- School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA
| | - Jianbei Huang
- Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Thomas Klüpfel
- Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
| | | | - Jürgen Kreuzwieser
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany
| | - Kathrin Kühnhammer
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany.,Institute of Geoecology - Environmental Geochemistry, Technical University Braunschweig, Braunschweig, Germany
| | - Marco M Lehmann
- Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | | | - Pawel K Misztal
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, TX, USA
| | - Wei-Ren Ng
- Biosphere 2, University of Arizona, Oracle, AZ, USA
| | - Eva Pfannerstill
- Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
| | - Giovanni Pugliese
- Ecosystem Physiology, Faculty of Environment and Natural Resources, Albert-Ludwig-University of Freiburg, Freiburg, Germany.,Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany
| | - Gemma Purser
- Centre for Ecology and Hydrology, University of Edinburgh, Edinburgh, UK
| | | | - Lingling Shi
- Biogeochemistry of Agroecosystems, University of Göttingen, Göttingen, Germany.,Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany
| | - Malak Tfaily
- BIO5 Institute, The University of Arizona, Tucson, AZ, USA.,Geo-Biosphere Interactions, University of Tuebingen, Tuebingen, Germany.,Pacific Northwest National Laboratory, Richland, WA, USA
| | - Jonathan Williams
- Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, Germany.,Energy, Environment and Water Research Center, The Cyprus Institute, Nicosia, Cyprus
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11
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Wilfahrt PA, Schweiger AH, Abrantes N, Arfin‐Khan MAS, Bahn M, Berauer BJ, Bierbaumer M, Djukic I, Dusseldorp M, Eibes P, Estiarte M, Hessberg A, Holub P, Ingrisch J, Schmidt IK, Kesic L, Klem K, Kröel‐Dulay G, Larsen KS, Lõhmus K, Mänd P, Orbán I, Orlovic S, Peñuelas J, Reinthaler D, Radujković D, Schuchardt M, Schweiger JM, Stojnic S, Tietema A, Urban O, Vicca S, Jentsch A. Disentangling climate from soil nutrient effects on plant biomass production using a multispecies phytometer. Ecosphere 2021. [DOI: 10.1002/ecs2.3719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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12
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Meeran K, Ingrisch J, Reinthaler D, Canarini A, Müller L, Pötsch EM, Richter A, Wanek W, Bahn M. Warming and elevated CO 2 intensify drought and recovery responses of grassland carbon allocation to soil respiration. Glob Chang Biol 2021; 27:3230-3243. [PMID: 33811716 DOI: 10.1111/gcb.15628] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 03/07/2021] [Accepted: 03/15/2021] [Indexed: 05/26/2023]
Abstract
Photosynthesis and soil respiration represent the two largest fluxes of CO2 in terrestrial ecosystems and are tightly linked through belowground carbon (C) allocation. Drought has been suggested to impact the allocation of recently assimilated C to soil respiration; however, it is largely unknown how drought effects are altered by a future warmer climate under elevated atmospheric CO2 (eT_eCO2 ). In a multifactor experiment on managed C3 grassland, we studied the individual and interactive effects of drought and eT_eCO2 (drought, eT_eCO2 , drought × eT_eCO2 ) on ecosystem C dynamics. We performed two in situ 13 CO2 pulse-labeling campaigns to trace the fate of recent C during peak drought and recovery. eT_eCO2 increased soil respiration and the fraction of recently assimilated C in soil respiration. During drought, plant C uptake was reduced by c. 50% in both ambient and eT_eCO2 conditions. Soil respiration and the amount and proportion of 13 C respired from soil were reduced (by 32%, 70% and 30%, respectively), the effect being more pronounced under eT_eCO2 (50%, 84%, 70%). Under drought, the diel coupling of photosynthesis and SR persisted only in the eT_eCO2 scenario, likely caused by dynamic shifts in the use of freshly assimilated C between storage and respiration. Drought did not affect the fraction of recent C remaining in plant biomass under ambient and eT_eCO2 , but reduced the small fraction remaining in soil under eT_eCO2 . After rewetting, C uptake and the proportion of recent C in soil respiration recovered more rapidly under eT_eCO2 compared to ambient conditions. Overall, our findings suggest that in a warmer climate under elevated CO2 drought effects on the fate of recent C will be amplified and the coupling of photosynthesis and soil respiration will be sustained. To predict the future dynamics of terrestrial C cycling, such interactive effects of multiple global change factors should be considered.
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Affiliation(s)
| | | | - David Reinthaler
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Alberto Canarini
- Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Lena Müller
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Erich M Pötsch
- Institute of Plant Production and Cultural Landscape, Agricultural Research and Education Centre, Raumberg-Gumpenstein, Austria
| | - Andreas Richter
- Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Wolfgang Wanek
- Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Michael Bahn
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
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13
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Harris E, Diaz-Pines E, Stoll E, Schloter M, Schulz S, Duffner C, Li K, Moore KL, Ingrisch J, Reinthaler D, Zechmeister-Boltenstern S, Glatzel S, Brüggemann N, Bahn M. Denitrifying pathways dominate nitrous oxide emissions from managed grassland during drought and rewetting. Sci Adv 2021; 7:eabb7118. [PMID: 33547069 PMCID: PMC7864578 DOI: 10.1126/sciadv.abb7118] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 12/07/2020] [Indexed: 05/19/2023]
Abstract
Nitrous oxide is a powerful greenhouse gas whose atmospheric growth rate has accelerated over the past decade. Most anthropogenic N2O emissions result from soil N fertilization, which is converted to N2O via oxic nitrification and anoxic denitrification pathways. Drought-affected soils are expected to be well oxygenated; however, using high-resolution isotopic measurements, we found that denitrifying pathways dominated N2O emissions during a severe drought applied to managed grassland. This was due to a reversible, drought-induced enrichment in nitrogen-bearing organic matter on soil microaggregates and suggested a strong role for chemo- or codenitrification. Throughout rewetting, denitrification dominated emissions, despite high variability in fluxes. Total N2O flux and denitrification contribution were significantly higher during rewetting than for control plots at the same soil moisture range. The observed feedbacks between precipitation changes induced by climate change and N2O emission pathways are sufficient to account for the accelerating N2O growth rate observed over the past decade.
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Affiliation(s)
- E Harris
- Plant, Soil and Ecosystem Processes Research Group, Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria.
| | - E Diaz-Pines
- Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Straße 82, 1190 Vienna, Austria
| | - E Stoll
- Plant, Soil and Ecosystem Processes Research Group, Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
| | - M Schloter
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Chair of Soil Science, Technical University of Munich, 85354 Freising, Germany
| | - S Schulz
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - C Duffner
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
- Chair of Soil Science, Technical University of Munich, 85354 Freising, Germany
| | - K Li
- Department of Materials, Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - K L Moore
- Department of Materials, Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - J Ingrisch
- Plant, Soil and Ecosystem Processes Research Group, Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
| | - D Reinthaler
- Plant, Soil and Ecosystem Processes Research Group, Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
| | - S Zechmeister-Boltenstern
- Institute of Soil Research, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Straße 82, 1190 Vienna, Austria
| | - S Glatzel
- Geoecology, Department of Geography and Regional Research, Faculty of Geosciences, Geography, and Astronomy, University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - N Brüggemann
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Agrosphere (IBG-3), Wilhelm-Johnen-Straße, 52425 Jülich, Germany
| | - M Bahn
- Plant, Soil and Ecosystem Processes Research Group, Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
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14
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Ingrisch J, Karlowsky S, Hasibeder R, Gleixner G, Bahn M. Drought and recovery effects on belowground respiration dynamics and the partitioning of recent carbon in managed and abandoned grassland. Glob Chang Biol 2020; 26:4366-4378. [PMID: 32343042 PMCID: PMC7384171 DOI: 10.1111/gcb.15131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 04/09/2020] [Indexed: 05/23/2023]
Abstract
The supply of soil respiration with recent photoassimilates is an important and fast pathway for respiratory loss of carbon (C). To date it is unknown how drought and land-use change interactively influence the dynamics of recent C in soil-respired CO2 . In an in situ common-garden experiment, we exposed soil-vegetation monoliths from a managed and a nearby abandoned mountain grassland to an experimental drought. Based on two 13 CO2 pulse-labelling campaigns, we traced recently assimilated C in soil respiration during drought, rewetting and early recovery. Independent of grassland management, drought reduced the absolute allocation of recent C to soil respiration. Rewetting triggered a respiration pulse, which was strongly fuelled by C assimilated during drought. In comparison to the managed grassland, the abandoned grassland partitioned more recent C to belowground respiration than to root C storage under ample water supply. Interestingly, this pattern was reversed under drought. We suggest that these different response patterns reflect strategies of the managed and the abandoned grassland to enhance their respective resilience to drought, by fostering their resistance and recovery respectively. We conclude that while severe drought can override the effects of abandonment of grassland management on the respiratory dynamics of recent C, abandonment alters strategies of belowground assimilate investment, with consequences for soil-CO2 fluxes during drought and drought-recovery.
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Affiliation(s)
| | - Stefan Karlowsky
- Max Planck Institute for BiogeochemistryJenaGermany
- Leibniz‐Institute of Vegetable and Ornamental CropsGroßbeerenGermany
| | | | | | - Michael Bahn
- Department of EcologyUniversity of InnsbruckInnsbruckAustria
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15
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Miehe G, Schleuss PM, Seeber E, Babel W, Biermann T, Braendle M, Chen F, Coners H, Foken T, Gerken T, Graf HF, Guggenberger G, Hafner S, Holzapfel M, Ingrisch J, Kuzyakov Y, Lai Z, Lehnert L, Leuschner C, Li X, Liu J, Liu S, Ma Y, Miehe S, Mosbrugger V, Noltie HJ, Schmidt J, Spielvogel S, Unteregelsbacher S, Wang Y, Willinghöfer S, Xu X, Yang Y, Zhang S, Opgenoorth L, Wesche K. The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem: Kobresia pastures of Tibet. Sci Total Environ 2019; 648:754-771. [PMID: 30134213 DOI: 10.1016/j.scitotenv.2018.08.164] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 08/10/2018] [Accepted: 08/12/2018] [Indexed: 05/28/2023]
Abstract
With 450,000 km2Kobresia (syn. Carex) pygmaea dominated pastures in the eastern Tibetan highlands are the world's largest pastoral alpine ecosystem forming a durable turf cover at 3000-6000 m a.s.l. Kobresia's resilience and competitiveness is based on dwarf habit, predominantly below-ground allocation of photo assimilates, mixture of seed production and clonal growth, and high genetic diversity. Kobresia growth is co-limited by livestock-mediated nutrient withdrawal and, in the drier parts of the plateau, low rainfall during the short and cold growing season. Overstocking has caused pasture degradation and soil deterioration over most parts of the Tibetan highlands and is the basis for this man-made ecosystem. Natural autocyclic processes of turf destruction and soil erosion are initiated through polygonal turf cover cracking, and accelerated by soil-dwelling endemic small mammals in the absence of predators. The major consequences of vegetation cover deterioration include the release of large amounts of C, earlier diurnal formation of clouds, and decreased surface temperatures. These effects decrease the recovery potential of Kobresia pastures and make them more vulnerable to anthropogenic pressure and climate change. Traditional migratory rangeland management was sustainable over millennia, and possibly still offers the best strategy to conserve and possibly increase C stocks in the Kobresia turf.
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Affiliation(s)
- Georg Miehe
- Philipps-University of Marburg, Faculty of Geography, Marburg, Germany
| | | | - Elke Seeber
- University of Greifswald, Institute of Botany and Landscape Ecology, Greifswald, Germany
| | - Wolfgang Babel
- University of Bayreuth, Micrometeorology Group, Bayreuth, Germany; University of Bayreuth, Bayreuth Center of Ecology and Environmental Research, Bayreuth, Germany
| | - Tobias Biermann
- Lund University, Centre for Environmental and Climate Research, Lund, Sweden
| | - Martin Braendle
- Philipps-University of Marburg, Department of Ecology, Marburg, Germany
| | - Fahu Chen
- Lanzhou University, MOE Key Laboratory of West China's Environmental System, School of Earth and Environment Sciences, Lanzhou, China
| | - Heinz Coners
- University of Göttingen, Department of Plant Ecology and Ecosystem Research, Göttingen, Germany
| | - Thomas Foken
- University of Bayreuth, Bayreuth Center of Ecology and Environmental Research, Bayreuth, Germany
| | - Tobias Gerken
- Montana State University, Department of Land Resources and Environmental Sciences, Bozeman, MT, USA
| | - Hans-F Graf
- University of Cambridge, Department of Geography, Centre for Atmospheric Science, Cambridge, United Kingdom
| | - Georg Guggenberger
- Leibniz Universität Hannover, Institute for Soil Science, Hannover, Germany
| | - Silke Hafner
- University of Göttingen, Department of Soil Sciences of Temperate Ecosystems, Göttingen, Germany
| | - Maika Holzapfel
- Senckenberg Museum Görlitz, Department of Botany, Görlitz, Germany
| | - Johannes Ingrisch
- University of Innsbruck, Institute of Ecology Research, Innsbruck, Austria
| | - Yakov Kuzyakov
- University of Göttingen, Department of Soil Sciences of Temperate Ecosystems, Göttingen, Germany; Senckenberg Museum Görlitz, Department of Botany, Görlitz, Germany; University of Göttingen, Department of Agricultural Soil Science, Göttingen, Germany; Institute of Environmental Sciences, Kazan Federal University, Kazan, Russia
| | - Zhongping Lai
- China University of Geosciences, State Key Lab of Biogeology and Environmental Geology, School of Earth Sciences, Wuhan, China
| | - Lukas Lehnert
- Philipps-University of Marburg, Faculty of Geography, Marburg, Germany
| | - Christoph Leuschner
- University of Göttingen, Department of Plant Ecology and Ecosystem Research, Göttingen, Germany
| | - Xiaogang Li
- Lanzhou University, State Key Laboratory of Grassland Agro-ecosystem, College of Life Science, Lanzhou, China
| | - Jianquan Liu
- Lanzhou University, State Key Laboratory of Grassland Agro-ecosystem, College of Life Science, Lanzhou, China
| | - Shibin Liu
- University of Göttingen, Department of Soil Sciences of Temperate Ecosystems, Göttingen, Germany
| | - Yaoming Ma
- Chinese Academy of Sciences, Institute of Tibetan Plateau Research, Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Beijing, China
| | - Sabine Miehe
- Philipps-University of Marburg, Faculty of Geography, Marburg, Germany
| | - Volker Mosbrugger
- Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | - Henry J Noltie
- Royal Botanic Garden Edinburgh, Edinburgh, Scotland, United Kingdom
| | - Joachim Schmidt
- University of Rostock, Institute of Biosciences, General and Systematic Zoology, Rostock, Germany
| | | | - Sebastian Unteregelsbacher
- Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, Germany
| | - Yun Wang
- Senckenberg Museum Görlitz, Department of Botany, Görlitz, Germany
| | - Sandra Willinghöfer
- University of Göttingen, Department of Plant Ecology and Ecosystem Research, Göttingen, Germany
| | - Xingliang Xu
- University of Göttingen, Department of Soil Sciences of Temperate Ecosystems, Göttingen, Germany; Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Yongping Yang
- Chinese Academy of Sciences, Institute of Tibetan Plateau Research, Laboratory of Alpine Ecology and Biodiversity, Beijing, China
| | - Shuren Zhang
- Chinese Academy of Sciences, Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Beijing, China
| | - Lars Opgenoorth
- Philipps-University of Marburg, Department of Ecology, Marburg, Germany.
| | - Karsten Wesche
- Senckenberg Museum Görlitz, Department of Botany, Görlitz, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Germany; International Institute Zittau, Technische Universität Dresden, Markt 23, 02763 Zittau, Germany
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Karlowsky S, Augusti A, Ingrisch J, Akanda MKU, Bahn M, Gleixner G. Drought-Induced Accumulation of Root Exudates Supports Post-drought Recovery of Microbes in Mountain Grassland. Front Plant Sci 2018; 9:1593. [PMID: 30464767 PMCID: PMC6234839 DOI: 10.3389/fpls.2018.01593] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/15/2018] [Indexed: 05/28/2023]
Abstract
Droughts strongly affect carbon and nitrogen cycling in grasslands, with consequences for ecosystem productivity. Therefore, we investigated how experimental grassland communities interact with groups of soil microorganisms. In particular, we explored the mechanisms of the drought-induced decoupling of plant photosynthesis and microbial carbon cycling and its recovery after rewetting. Our aim was to better understand how root exudation during drought is linked to pulses of soil microbial activity and changes in plant nitrogen uptake after rewetting. We set up a mesocosm experiment on a meadow site and used shelters to simulate drought. We performed two 13C-CO2 pulse labelings, the first at peak drought and the second in the recovery phase, and traced the flow of assimilates into the carbohydrates of plants and the water extractable organic carbon and microorganisms from the soil. Total microbial tracer uptake in the main metabolism was estimated by chloroform fumigation extraction, whereas the lipid biomarkers were used to assess differences between the microbial groups. Drought led to a reduction of aboveground versus belowground plant growth and to an increase of 13C tracer contents in the carbohydrates, particularly in the roots. Newly assimilated 13C tracer unexpectedly accumulated in the water-extractable soil organic carbon, indicating that root exudation continued during the drought. In contrast, drought strongly reduced the amount of 13C tracer assimilated into the soil microorganisms. This reduction was more severe in the growth-related lipid biomarkers than in the metabolic compounds, suggesting a slowdown of microbial processes at peak drought. Shortly after rewetting, the tracer accumulation in the belowground plant carbohydrates and in the water-extractable soil organic carbon disappeared. Interestingly, this disappearance was paralleled by a quick recovery of the carbon uptake into metabolic and growth-related compounds from the rhizospheric microorganisms, which was probably related to the higher nitrogen supply to the plant shoots. We conclude that the decoupling of plant photosynthesis and soil microbial carbon cycling during drought is due to reduced carbon uptake and metabolic turnover of rhizospheric soil microorganisms. Moreover, our study suggests that the maintenance of root exudation during drought is connected to a fast reinitiation of soil microbial activity after rewetting, supporting plant recovery through increased nitrogen availability.
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Affiliation(s)
| | - Angela Augusti
- Research Institute on Terrestrial Ecosystems, Consiglio Nazionale delle Ricerche, Rome, Italy
| | | | | | - Michael Bahn
- Institute of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Gerd Gleixner
- Max Planck Institute for Biogeochemistry, Jena, Germany
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Bahn M, Ingrisch J. Accounting for Complexity in Resilience Comparisons: A Reply to Yeung and Richardson, and Further Considerations. Trends Ecol Evol 2018; 33:649-651. [PMID: 30017247 DOI: 10.1016/j.tree.2018.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 06/14/2018] [Accepted: 06/26/2018] [Indexed: 11/19/2022]
Affiliation(s)
- Michael Bahn
- Institute of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria.
| | - Johannes Ingrisch
- Institute of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
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18
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Karlowsky S, Augusti A, Ingrisch J, Hasibeder R, Lange M, Lavorel S, Bahn M, Gleixner G, Wurzburger N. Land use in mountain grasslands alters drought response and recovery of carbon allocation and plant-microbial interactions. J Ecol 2018; 106:1230-1243. [PMID: 29780173 PMCID: PMC5947120 DOI: 10.1111/1365-2745.12910] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 10/19/2017] [Indexed: 05/07/2023]
Abstract
Mountain grasslands have recently been exposed to substantial changes in land use and climate and in the near future will likely face an increased frequency of extreme droughts. To date, how the drought responses of carbon (C) allocation, a key process in the C cycle, are affected by land-use changes in mountain grassland is not known.We performed an experimental summer drought on an abandoned grassland and a traditionally managed hay meadow and traced the fate of recent assimilates through the plant-soil continuum. We applied two 13 CO 2 pulses, at peak drought and in the recovery phase shortly after rewetting.Drought decreased total C uptake in both grassland types and led to a loss of above-ground carbohydrate storage pools. The below-ground C allocation to root sucrose was enhanced by drought, especially in the meadow, which also held larger root carbohydrate storage pools.The microbial community of the abandoned grassland comprised more saprotrophic fungal and Gram(+) bacterial markers compared to the meadow. Drought increased the newly introduced AM and saprotrophic (A+S) fungi:bacteria ratio in both grassland types. At peak drought, the 13C transfer into AM and saprotrophic fungi, and Gram(-) bacteria was more strongly reduced in the meadow than in the abandoned grassland, which contrasted the patterns of the root carbohydrate pools.In both grassland types, the C allocation largely recovered after rewetting. Slowest recovery was found for AM fungi and their 13C uptake. In contrast, all bacterial markers quickly recovered C uptake. In the meadow, where plant nitrate uptake was enhanced after drought, C uptake was even higher than in control plots. Synthesis. Our results suggest that resistance and resilience (i.e. recovery) of plant C dynamics and plant-microbial interactions are negatively related, that is, high resistance is followed by slow recovery and vice versa. The abandoned grassland was more resistant to drought than the meadow and possibly had a stronger link to AM fungi that could have provided better access to water through the hyphal network. In contrast, meadow communities strongly reduced C allocation to storage and C transfer to the microbial community in the drought phase, but in the recovery phase invested C resources in the bacterial communities to gain more nutrients for regrowth. We conclude that the management of mountain grasslands increases their resilience to drought.
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Affiliation(s)
| | - Angela Augusti
- Institute of Agro‐Environmental and Forest BiologyCNR ItalyPorano (TR)Italy
| | | | | | - Markus Lange
- Max Planck Institute for BiogeochemistryJenaGermany
| | - Sandra Lavorel
- Laboratoire d'Ecologie AlpineUMR 5553 CNRSUniversité Joseph FourierGrenoble Cedex 9France
| | - Michael Bahn
- Institute of EcologyUniversity of InnsbruckInnsbruckAustria
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Gavazov K, Ingrisch J, Hasibeder R, Mills RTE, Buttler A, Gleixner G, Pumpanen J, Bahn M. Winter ecology of a subalpine grassland: Effects of snow removal on soil respiration, microbial structure and function. Sci Total Environ 2017; 590-591:316-324. [PMID: 28279534 DOI: 10.1016/j.scitotenv.2017.03.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/08/2017] [Accepted: 03/02/2017] [Indexed: 06/06/2023]
Abstract
Seasonal snow cover provides essential insulation for mountain ecosystems, but expected changes in precipitation patterns and snow cover duration due to global warming can influence the activity of soil microbial communities. In turn, these changes have the potential to create new dynamics of soil organic matter cycling. To assess the effects of experimental snow removal and advanced spring conditions on soil carbon (C) and nitrogen (N) dynamics, and on the biomass and structure of soil microbial communities, we performed an in situ study in a subalpine grassland in the Austrian Alps, in conjunction with soil incubations under controlled conditions. We found substantial winter C-mineralisation and high accumulation of inorganic and organic N in the topsoil, peaking at snowmelt. Soil microbial biomass doubled under the snow, paralleled by a fivefold increase in its C:N ratio, but no apparent change in its bacteria-dominated community structure. Snow removal led to a series of mild freeze-thaw cycles, which had minor effects on in situ soil CO2 production and N mineralisation. Incubated soil under advanced spring conditions, however, revealed an impaired microbial metabolism shortly after snow removal, characterised by a limited capacity for C-mineralisation of both fresh plant-derived substrates and existing soil organic matter (SOM), leading to reduced priming effects. This effect was transient and the observed recovery in microbial respiration and SOM priming towards the end of the winter season indicated microbial resilience to short-lived freeze-thaw disturbance under field conditions. Bacteria showed a higher potential for uptake of plant-derived C substrates during this recovery phase. The observed temporary loss in microbial C-mineralisation capacity and the promotion of bacteria over fungi can likely impede winter SOM cycling in mountain grasslands under recurrent winter climate change events, with plausible implications for soil nutrient availability and plant-soil interactions.
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Affiliation(s)
- Konstantin Gavazov
- Climate Impacts Research Centre, Department of Ecology and Environmental Science, Umeå University, 98107 Abisko, Sweden.
| | - Johannes Ingrisch
- Institute of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
| | - Roland Hasibeder
- Institute of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
| | - Robert T E Mills
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Alexandre Buttler
- Ecole Polytechnique Fédérale de Lausanne EPFL, School of Architecture, Civil and Environmental Engineering ENAC, Laboratory of Ecological Systems ECOS, Station 2, 1015 Lausanne, Switzerland; Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Site Lausanne, Station 2, 1015 Lausanne, Switzerland; Laboratoire de Chrono-Environnement, UMR CNRS 6249, UFR des Sciences et Techniques, 16 route de Gray, Université de Franche-Comté, 25030 Besançon, France
| | - Gerd Gleixner
- Max Planck Institute for Biogeochemistry, P.O. Box 100164, 07701 Jena, Germany
| | - Jukka Pumpanen
- Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Michael Bahn
- Institute of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria
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Ingrisch J, Biermann T, Seeber E, Leipold T, Li M, Ma Y, Xu X, Miehe G, Guggenberger G, Foken T, Kuzyakov Y. Carbon pools and fluxes in a Tibetan alpine Kobresia pygmaea pasture partitioned by coupled eddy-covariance measurements and ¹³CO₂ pulse labeling. Sci Total Environ 2015; 505:1213-1224. [PMID: 25461119 DOI: 10.1016/j.scitotenv.2014.10.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/21/2014] [Accepted: 10/22/2014] [Indexed: 06/04/2023]
Abstract
The Tibetan highlands host the largest alpine grassland ecosystems worldwide, bearing soils that store substantial stocks of carbon (C) that are very sensitive to land use changes. This study focuses on the cycling of photoassimilated C within a Kobresia pygmaea pasture, the dominating ecosystems on the Tibetan highlands. We investigated short-term effects of grazing cessation and the role of the characteristic Kobresia root turf on C fluxes and belowground C turnover. By combining eddy-covariance measurements with (13)CO₂ pulse labeling we applied a powerful new approach to measure absolute fluxes of assimilates within and between various pools of the plant-soil-atmosphere system. The roots and soil each store roughly 50% of the overall C in the system (76 Mg C ha(-1)), with only a minor contribution from shoots, which is also expressed in the root:shoot ratio of 90. During June and July the pasture acted as a weak C sink with a strong uptake of approximately 2 g C m(-2) d(-1) in the first half of July. The root turf was the main compartment for the turnover of photoassimilates, with a subset of highly dynamic roots (mean residence time 20 days), and plays a key role for the C cycling and C storage in this ecosystem. The short-term grazing cessation only affected aboveground biomass but not ecosystem scale C exchange or assimilate allocation into roots and soil.
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Affiliation(s)
- Johannes Ingrisch
- Department of Agroecosystem Research, University of Bayreuth, Bayreuth, Germany.
| | - Tobias Biermann
- Dept. of Micrometeorology, University of Bayreuth, Bayreuth, Germany
| | - Elke Seeber
- Senckenberg Museum of Natural History, Görlitz, Germany
| | - Thomas Leipold
- Dept. of Micrometeorology, University of Bayreuth, Bayreuth, Germany
| | - Maoshan Li
- Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China
| | - Yaoming Ma
- Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
| | - Xingliang Xu
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Georg Miehe
- Faculty of Geography, Philipps University Marburg, Marburg, Germany
| | - Georg Guggenberger
- Institute of Soil Science, Leibniz University Hannover, Hannover, Germany
| | - Thomas Foken
- Dept. of Micrometeorology, University of Bayreuth, Bayreuth, Germany; Member of Bayreuth Center of Ecology and Ecosystem Research (BayCEER), Germany
| | - Yakov Kuzyakov
- Dept. of Soil Science of Temperate Ecosystems, Georg-August University Göttingen, Göttingen, Germany; Dept. of Agricultural Soil Science, Georg-August University of Göttingen, Göttingen, Germany; Institute of Environmental Sciences, Kazan Federal University, Kazan, Russia
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