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Substantial hysteresis in emergent temperature sensitivity of global wetland CH4 emissions.
Chang, Kuang-Yu; Riley, William J; Knox, Sara H; Jackson, Robert B; McNicol, Gavin; Poulter, Benjamin; Aurela, Mika; Baldocchi, Dennis; Bansal, Sheel; Bohrer, Gil; Campbell, David I; Cescatti, Alessandro; Chu, Housen; Delwiche, Kyle B; Desai, Ankur R; Euskirchen, Eugenie; Friborg, Thomas; Goeckede, Mathias; Helbig, Manuel; Hemes, Kyle S; Hirano, Takashi; Iwata, Hiroki; Kang, Minseok; Keenan, Trevor; Krauss, Ken W; Lohila, Annalea; Mammarella, Ivan; Mitra, Bhaskar; Miyata, Akira; Nilsson, Mats B; Noormets, Asko; Oechel, Walter C; Papale, Dario; Peichl, Matthias; Reba, Michele L; Rinne, Janne; Runkle, Benjamin R K; Ryu, Youngryel; Sachs, Torsten; Schäfer, Karina V R; Schmid, Hans Peter; Shurpali, Narasinha; Sonnentag, Oliver; Tang, Angela C I; Torn, Margaret S; Trotta, Carlo; Tuittila, Eeva-Stiina; Ueyama, Masahito; Vargas, Rodrigo; Vesala, Timo.
Afiliación
  • Chang KY; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. ckychang@lbl.gov.
  • Riley WJ; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. wjriley@lbl.gov.
  • Knox SH; Department of Geography, The University of British Columbia, Vancouver, BC, Canada.
  • Jackson RB; Department of Earth System Science, Stanford University, Stanford, CA, USA.
  • McNicol G; Woods Institute for the Environment and Precourt Institute for Energy, Stanford, CA, USA.
  • Poulter B; Department of Earth System Science, Stanford University, Stanford, CA, USA.
  • Aurela M; NASA Goddard Space Flight Center, Biospheric Sciences Laboratory, Greenbelt, MD, USA.
  • Baldocchi D; Finnish Meteorological Institute, Helsinki, Finland.
  • Bansal S; Department of Environmental Science, Policy & Management, UC Berkeley, Berkeley, CA, USA.
  • Bohrer G; U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND, USA.
  • Campbell DI; Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH, USA.
  • Cescatti A; School of Science, University of Waikato, Hamilton, New Zealand.
  • Chu H; European Commission, Joint Research Centre (JRC), Ispra, Italy.
  • Delwiche KB; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
  • Desai AR; Department of Earth System Science, Stanford University, Stanford, CA, USA.
  • Euskirchen E; Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, USA.
  • Friborg T; University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, USA.
  • Goeckede M; Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen K, Denmark.
  • Helbig M; Max Planck Institute for Biogeochemistry, Jena, Germany.
  • Hemes KS; School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada.
  • Hirano T; Département de Géographie & Centre d'Études Nordiques, Montréal, QC, Canada.
  • Iwata H; Woods Institute for the Environment, Stanford University, Stanford, CA, USA.
  • Kang M; Graduate School of Agriculture, Hokkaido University, Sapporo, Japan.
  • Keenan T; Department of Environmental Science, Faculty of Science, Shinshu University, Matsumoto, Japan.
  • Krauss KW; National Center for AgroMeteorology, Seoul, South Korea.
  • Lohila A; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
  • Mammarella I; Department of Environmental Science, Policy & Management, UC Berkeley, Berkeley, CA, USA.
  • Mitra B; U.S. Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA, USA.
  • Miyata A; Finnish Meteorological Institute, Helsinki, Finland.
  • Nilsson MB; Institute for Atmosphere and Earth System Research/Physics, Faculty of Science, University of Helsink, Helsinki, Finland.
  • Noormets A; Institute for Atmosphere and Earth System Research/Physics, Faculty of Science, University of Helsink, Helsinki, Finland.
  • Oechel WC; Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX, USA.
  • Papale D; Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan.
  • Peichl M; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden.
  • Reba ML; Department of Ecosystem Science and Management, Texas A&M University, College Station, TX, USA.
  • Rinne J; Department of Biology, San Diego State University, San Diego, CA, USA.
  • Runkle BRK; DIBAF, Università degli Studi della Tuscia, Largo dell'Università, Viterbo, Italy.
  • Ryu Y; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden.
  • Sachs T; United States Department of Agriculture, Agricultural Research Service, Delta Water Management Research Service, Jonesboro, AR, USA.
  • Schäfer KVR; Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden.
  • Schmid HP; Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR, USA.
  • Shurpali N; Department of Landscape Architecture and Rural Systems Engineering, Seoul National University, Seoul, South Korea.
  • Sonnentag O; GFZ German Research Centre for Geoscience, Potsdam, Germany.
  • Tang ACI; Department of Biological Sciences, Rutgers University Newark, Newark, NJ, USA.
  • Torn MS; Institute of Meteorology and Climatology - Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology (KIT), Garmisch-Partenkirchen, Germany.
  • Trotta C; Production Systems, Natural Resources Institute Finland, Maaninka, Finland.
  • Tuittila ES; Département de Géographie & Centre d'Études Nordiques, Montréal, QC, Canada.
  • Ueyama M; Sarawak Tropical Peat Research Institute, Sarawak, Malaysia.
  • Vargas R; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
  • Vesala T; DIBAF, Università degli Studi della Tuscia, Largo dell'Università, Viterbo, Italy.
Nat Commun ; 12(1): 2266, 2021 04 15.
Article en En | MEDLINE | ID: mdl-33859182
ABSTRACT
Wetland methane (CH4) emissions ([Formula see text]) are important in global carbon budgets and climate change assessments. Currently, [Formula see text] projections rely on prescribed static temperature sensitivity that varies among biogeochemical models. Meta-analyses have proposed a consistent [Formula see text] temperature dependence across spatial scales for use in models; however, site-level studies demonstrate that [Formula see text] are often controlled by factors beyond temperature. Here, we evaluate the relationship between [Formula see text] and temperature using observations from the FLUXNET-CH4 database. Measurements collected across the globe show substantial seasonal hysteresis between [Formula see text] and temperature, suggesting larger [Formula see text] sensitivity to temperature later in the frost-free season (about 77% of site-years). Results derived from a machine-learning model and several regression models highlight the importance of representing the large spatial and temporal variability within site-years and ecosystem types. Mechanistic advancements in biogeochemical model parameterization and detailed measurements in factors modulating CH4 production are thus needed to improve global CH4 budget assessments.

Texto completo: 1 Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Prognostic_studies Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos