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Increasing and widespread vulnerability of intact tropical rainforests to repeated droughts

hal.structure.identifierEvolution et Diversité Biologique [EDB]
hal.structure.identifierPeking University [Beijing]
dc.contributor.authorTAO, Shengli
hal.structure.identifierEvolution et Diversité Biologique [EDB]
dc.contributor.authorCHAVE, Jérôme
hal.structure.identifierLaboratoire sciences et technologies de l'information géographique [LaSTIG]
dc.contributor.authorFRISON, Pierre-Louis
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorLE TOAN, Thuy
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorCIAIS, Philippe
hal.structure.identifierPeking University [Beijing]
dc.contributor.authorFANG, Jingyun
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorJ.-P., Wigneron
hal.structure.identifierGamma Remote Sensing Research and Consulting AG
dc.contributor.authorSANTORO, Maurizio
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorYANG, Hui
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorLI, Xiaojun
hal.structure.identifierEvolution et Diversité Biologique [EDB]
dc.contributor.authorLABRIÈRE, Nicolas
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorSAATCHI, Sassan
dc.date.accessioned2024-04-08T11:43:45Z
dc.date.available2024-04-08T11:43:45Z
dc.date.issued2022-07-22
dc.identifier.issn0027-8424
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195121
dc.description.abstractEnIntact tropical rainforests have been exposed to severe droughts in recent decades, which may threaten their integrity, their ability to sequester carbon, and their capacity to provide shelter for biodiversity. However, their response to droughts remains uncertain due to limited high-quality, long-term observations covering extensive areas. Here, we examined how the upper canopy of intact tropical rainforests has responded to drought events globally and during the past 3 decades. By developing a long pantropical time series (1992 to 2018) of monthly radar satellite observations, we show that repeated droughts caused a sustained decline in radar signal in 93%, 84%, and 88% of intact tropical rainforests in the Americas, Africa, and Asia, respectively. Sudden decreases in radar signal were detected around the 1997–1998, 2005, 2010, and 2015 droughts in tropical Americas; 1999–2000, 2004–2005, 2010–2011, and 2015 droughts in tropical Africa; and 1997–1998, 2006, and 2015 droughts in tropical Asia. Rainforests showed similar low resistance (the ability to maintain predrought condition when drought occurs) to severe droughts across continents, but American rainforests consistently showed the lowest resilience (the ability to return to predrought condition after the drought event). Moreover, while the resistance of intact tropical rainforests to drought is decreasing, albeit weakly in tropical Africa and Asia, forest resilience has not increased significantly. Our results therefore suggest the capacity of intact rainforests to withstand future droughts is limited. This has negative implications for climate change mitigation through forest-based climate solutions and the associated pledges made by countries under the Paris Agreement.
dc.description.sponsorshipCEnter of the study of Biodiversity in Amazonia - ANR-10-LABX-0025
dc.description.sponsorshipTowards a Unified theory of biotic Interactions: the roLe of environmental
dc.description.sponsorshipANAEE-Services - ANR-11-INBS-0001
dc.language.isoen
dc.publisherNational Academy of Sciences
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/
dc.subject.enrainforests
dc.subject.endrought
dc.subject.enremote sensing
dc.subject.enradar
dc.title.enIncreasing and widespread vulnerability of intact tropical rainforests to repeated droughts
dc.typeArticle de revue
dc.identifier.doi10.1073/pnas.2116626119
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles/Sylviculture, foresterie
bordeaux.journalProceedings of the National Academy of Sciences of the United States of America
bordeaux.page2116626119
bordeaux.volume119
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue37
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03787959
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03787959v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Proceedings%20of%20the%20National%20Academy%20of%20Sciences%20of%20the%20United%20States%20of%20America&rft.date=2022-07-22&rft.volume=119&rft.issue=37&rft.spage=2116626119&rft.epage=2116626119&rft.eissn=0027-8424&rft.issn=0027-8424&rft.au=TAO,%20Shengli&CHAVE,%20J%C3%A9r%C3%B4me&FRISON,%20Pierre-Louis&LE%20TOAN,%20Thuy&CIAIS,%20Philippe&rft.genre=article


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