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Tropical tall forests are more sensitive and vulnerable to drought than short forests

hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorLIU, Liyang
hal.structure.identifierSun Yat-sen University [Guangzhou] [SYSU]
dc.contributor.authorCHEN, Xiuzhi
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorCIAIS, Philippe
hal.structure.identifierSun Yat-sen University [Guangzhou] [SYSU]
dc.contributor.authorYUAN, Wenping
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorMAIGNAN, Fabienne
hal.structure.identifierThe University of Hong Kong [HKU]
dc.contributor.authorWU, Jin
hal.structure.identifierPeking University [Beijing]
dc.contributor.authorPIAO, Shilong
hal.structure.identifierCommonwealth Scientific and Industrial Research Organisation [Canberra] [CSIRO]
dc.contributor.authorWANG, Ying‐ping
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorJ.-P., Wigneron
hal.structure.identifierSouthwest University [Chongqing]
dc.contributor.authorFAN, Lei
hal.structure.identifierColumbia University [New York]
dc.contributor.authorGENTINE, Pierre
hal.structure.identifierSun Yat-sen University [Guangzhou] [SYSU]
dc.contributor.authorYANG, Xueqin
hal.structure.identifierSun Yat-sen University [Guangzhou] [SYSU]
dc.contributor.authorGONG, Fanxi
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorLIU, Hui
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorWANG, Chen
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorTANG, Xuli
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorYANG, Hui
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorYE, Qing
hal.structure.identifierBeijing Normal University [BNU]
dc.contributor.authorHE, Bin
hal.structure.identifierCanada Ottawa Research and Development Centre
dc.contributor.authorSHANG, Jiali
hal.structure.identifierGuangdong Academy of Agricultural Sciences [GDAAS]
dc.contributor.authorSU, Yongxian
dc.date.accessioned2024-04-08T11:49:39Z
dc.date.available2024-04-08T11:49:39Z
dc.date.issued2022
dc.identifier.issn1354-1013
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195349
dc.description.abstractEnOur limited understanding of the impacts of drought on tropical forests significantly impedes our ability in accurately predicting the impacts of climate change on this biome. Here, we investigated the impact of drought on the dynamics of forest canopies with different heights using time-series records of remotely sensed Ku-band vegetation optical depth (Ku-VOD), a proxy of top-canopy foliar mass and water content, and separated the signal of Ku-VOD changes into drought-induced reductions and subsequent non-drought gains. Both drought-induced reductions and non-drought increases in Ku-VOD varied significantly with canopy height. Taller tropical forests experienced greater relative Ku-VOD reductions during drought and larger non-drought increases than shorter forests, but the net effect of drought was more negative in the taller forests. Meta-analysis of in situ hydraulic traits supports the hypothesis that taller tropical forests are more vulnerable to drought stress due to smaller xylem-transport safety margins. Additionally, Ku-VOD of taller forests showed larger reductions due to increased atmospheric dryness, as assessed by vapor pressure deficit, and showed larger gains in response to enhanced water supply than shorter forests. Including the height-dependent variation of hydraulic transport in ecosystem models will improve the simulated response of tropical forests to drought.
dc.language.isoen
dc.publisherWiley
dc.subject.encanopy dynamics
dc.subject.encanopy height
dc.subject.endrought
dc.subject.enmicrowave remote sensing
dc.subject.entropical forests
dc.subject.envegetation optical depth
dc.title.enTropical tall forests are more sensitive and vulnerable to drought than short forests
dc.typeArticle de revue
dc.identifier.doi10.1111/gcb.16017
dc.subject.halSciences de l'environnement
bordeaux.journalGlobal Change Biology
bordeaux.page1583-1595
bordeaux.volume28
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue4
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03481003
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03481003v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Global%20Change%20Biology&rft.date=2022&rft.volume=28&rft.issue=4&rft.spage=1583-1595&rft.epage=1583-1595&rft.eissn=1354-1013&rft.issn=1354-1013&rft.au=LIU,%20Liyang&CHEN,%20Xiuzhi&CIAIS,%20Philippe&YUAN,%20Wenping&MAIGNAN,%20Fabienne&rft.genre=article


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