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hal.structure.identifierDepartment of Organismic and Evolutionary Biology
hal.structure.identifierNicholas School of the Environment
hal.structure.identifierSchool of Informatics, Computing, and Cyber Systems [SICCS]
dc.contributor.authorSEYEDNASROLLAH, Bijan
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorSWENSON, Jennifer J.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierNicholas School of the Environment
dc.contributor.authorDOMEC, Jean-Christophe
hal.structure.identifierNicholas School of the Environment
hal.structure.identifierDuke University [Durham]
dc.contributor.authorCLARK, James S.
dc.date.accessioned2024-04-08T12:04:58Z
dc.date.available2024-04-08T12:04:58Z
dc.date.issued2018
dc.identifier.issn0034-4257
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196333
dc.description.abstractEnInteractions between climate and ecosystem properties that control phenological responses to climate warming and drought are poorly understood. To determine contributions from these interactions, we used space-borne remotely sensed vegetation indices to monitor leaf development across climate gradients and ecoregions in the southeastern United States. We quantified how air temperature, drought severity, and canopy thermal stress contribute to changes in leaf flushing from mountainous to coastal plain regions by developing a hierarchical state-space Bayesian model. We synthesized daily field climate data with daily vegetation indices and canopy surface temperature during spring green-up season at 59 sites in the southeastern United States between 2001 and 2012. Our results demonstrated strong interaction effects between ecosystem properties and climate variables across ecoregions. We found spring green-up is faster in the mountains, while coastal forests express a larger sensitivity to inter-annual temperature anomalies. Despite our detection of a decreasing trend in sensitivity to warming with temperature in all regions, we identified an ecosystem interaction: Deciduous dominated forests are less sensitive to warming than are those with fewer deciduous trees, likely due to the continuous presence of leaves in evergreen species throughout the season. Mountainous forest green-up is more susceptible to intensifying drought and moisture deficit, while coastal areas are relatively resilient. We found that with increasing canopy thermal stress, defined as canopy-air temperature difference, leaf development slows following dry years, and accelerates following wet years.
dc.language.isoen
dc.publisherElsevier
dc.subjectNDVI
dc.subjectphenology
dc.subject.enclimate change
dc.subject.enwarming
dc.subject.enland surface temperature
dc.subject.ensoutheastern US
dc.subject.enmultispectral
dc.subject.endaily vegetation index
dc.subject.enEVI
dc.subject.enMODIS
dc.subject.enforest
dc.subject.engreen-up
dc.subject.enbayesian
dc.subject.enhierarchical modeling
dc.subject.enspring
dc.title.enLeaf phenology paradox: Why warming matters most where it is already warm
dc.typeArticle de revue
dc.identifier.doi10.1016/j.rse.2018.02.059
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalRemote Sensing of Environment
bordeaux.page446-455
bordeaux.volume209
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02624621
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02624621v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Remote%20Sensing%20of%20Environment&rft.date=2018&rft.volume=209&rft.spage=446-455&rft.epage=446-455&rft.eissn=0034-4257&rft.issn=0034-4257&rft.au=SEYEDNASROLLAH,%20Bijan&SWENSON,%20Jennifer%20J.&DOMEC,%20Jean-Christophe&CLARK,%20James%20S.&rft.genre=article


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