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Asymmetric responses of ecosystem productivity to rainfall anomalies vary inversely with mean annual rainfall over the conterminous United States

hal.structure.identifierMilieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols [METIS]
dc.contributor.authorAL‐YAARI, Amen
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorJ.-P., Wigneron
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorCIAIS, Philippe
hal.structure.identifierMax Planck Institute for Biogeochemistry [MPI-BGC]
dc.contributor.authorREICHSTEIN, Markus
dc.contributor.authorBALLANTYNE, Ashley
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorOGÉE, Jerome
hal.structure.identifierMilieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols [METIS]
dc.contributor.authorDUCHARNE, Agnès
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorSWENSON, Jennifer
hal.structure.identifierLaboratoire d'études en Géophysique et océanographie spatiales [LEGOS]
dc.contributor.authorFRAPPART, Frédéric
hal.structure.identifierNanjing University of Information Science and Technology [NUIST]
dc.contributor.authorFAN, Lei
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWINGATE, Lisa
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorLI, Xiaojun
hal.structure.identifierUniversiteit Gent = Ghent University [UGENT]
dc.contributor.authorHUFKENS, Koen
hal.structure.identifierColorado State University [Fort Collins] [CSU]
dc.contributor.authorKNAPP, Alan
dc.date.accessioned2024-04-08T11:50:11Z
dc.date.available2024-04-08T11:50:11Z
dc.date.issued2020
dc.identifier.issn1354-1013
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195373
dc.description.abstractEnThe CONterminous United States (CONUS) presents a large range of climate conditions and biomes where terrestrial primary productivity and its inter-annual variability are controlled regionally by rainfall and/or temperature. Here, the response of ecosystem productivity to those climate variables was investigated across different biomes from 2010 to 2018 using three climate datasets of precipitation, air temperature or drought severity, combined with several proxies of ecosystem productivity: a remote sensing product of aboveground biomass, an net primary productivity (NPP) remote sensing product, an NPP model-based product and four gross primary productivity products. We used an asymmetry index (AI) where positive AI indicates a greater increase of ecosystem productivity in wet years compared to the decline in dry years, and negative AI indicates a greater decline of ecosystem productivity in dry years compared to the increase in wet years. We found consistent spatial patterns of AI across the CONUS for the different products, with negative asymmetries over the Great Plains and positive asymmetries over the southwestern CONUS. Shrubs and, to a lesser extent, evergreen forests show a persistent positive asymmetry, whilst (natural) grasslands appear to have transitioned from positive to negative anomalies during the last decade. The general tendency of dominant negative asymmetry response for ecosystem productivity across the CONUS appears to be influenced by the negative asymmetry of precipitation anomalies. AI was found to be a function of mean rainfall: more positive AIs were found in dry areas where plants are adapted to drought and take advantage of rainfall pulses, and more negative AIs were found in wet areas, with a threshold delineating the two regimes corresponding to a mean annual rainfall of 200–400 mm/year.
dc.language.isoen
dc.publisherWiley
dc.subject.enasymmetry
dc.subject.enNPP
dc.subject.enGPP
dc.subject.enecosystem productivity
dc.subject.enbiomass
dc.title.enAsymmetric responses of ecosystem productivity to rainfall anomalies vary inversely with mean annual rainfall over the conterminous United States
dc.typeArticle de revue
dc.identifier.doi10.1111/gcb.15345
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Ecosystèmes
bordeaux.journalGlobal Change Biology
bordeaux.page6959 - 6973
bordeaux.volume26
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue12
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03376713
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03376713v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Global%20Change%20Biology&rft.date=2020&rft.volume=26&rft.issue=12&rft.spage=6959%20-%206973&rft.epage=6959%20-%206973&rft.eissn=1354-1013&rft.issn=1354-1013&rft.au=AL%E2%80%90YAARI,%20Amen&J.-P.,%20Wigneron&CIAIS,%20Philippe&REICHSTEIN,%20Markus&BALLANTYNE,%20Ashley&rft.genre=article


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