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Variations of carbon allocation and turnover time across tropical forests

hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorYANG, Hui
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierICOS-ATC [ICOS-ATC]
dc.contributor.authorCIAIS, Philippe
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorWANG, Yilong
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorHUANG, Yuanyuan
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorJ.-P., Wigneron
hal.structure.identifierMax Planck Institute for Biogeochemistry [MPI-BGC]
dc.contributor.authorBASTOS, Ana
hal.structure.identifierUniversité Toulouse III - Paul Sabatier [UT3]
dc.contributor.authorCHAVE, Jérôme
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorCHANG, Jinfeng
hal.structure.identifierNorthern Arizona University [Flagstaff]
dc.contributor.authorDOUGHTY, Christopher
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorFAN, Lei
hal.structure.identifierUniversität Augsburg [Deutschland] = University of Augsburg [Germany] = Université d'Augsburg [Allemagne] [UNIA]
dc.contributor.authorGOLL, Daniel
hal.structure.identifierMétéo-France Direction Interrégionale Sud-Est [DIRSE]
dc.contributor.authorJOETZJER, Emilie
hal.structure.identifierTsinghua University [Beijing] [THU]
dc.contributor.authorLI, Wei
hal.structure.identifierAberystwyth University
dc.contributor.authorLUCAS, Richard
hal.structure.identifierUniversity of Sheffield [Sheffield]
dc.contributor.authorQUEGAN, Shaun
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.authorYU, Kailiang
dc.date.accessioned2024-04-08T11:51:35Z
dc.date.available2024-04-08T11:51:35Z
dc.date.issued2021-04-20
dc.identifier.issn1466-822X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195439
dc.description.abstractEnAim : The carbon sink in tropical forests is a highly uncertain component of the global carbon budget. An understanding of the processes controlling this sink requires better quantification of carbon allocation, stocks and turnover times.Location : Tropical forests.Time period : 2010–2017.Major taxa studied : Tropical forest ecosystem.Methods : We develop a novel data assimilation system using satellite-based annual above-ground biomass derived from L-band vegetation optical depth with 25 km × 25 km grid spacing, together with leaf area, to constrain the 25 km × 25 km carbon allocation patterns of net primary productivity (NPP) into the wood, leaf and root pools, and their turnover times. Our average data-driven estimates of these variables are broadly consistent with independent ground-based estimates of NPP allocation and wood turnover from forest inventory plots.Results : In tropical forest, on average, the NPP allocation into wood (0.30 ± 0.04) is significantly higher than that into leaves (0.24 ± 0.07). From the wet to dry tropics, forest NPP allocation into both wood and leaves declines slightly. The turnover times of forest leaf pools exhibit little spatial variation, whereas the turnover times of wood pools in Africa (median and interquartile range: urn:x-wiley:1466822X:media:geb13302:geb13302-math-0001 years) are slightly longer than those in South America (urn:x-wiley:1466822X:media:geb13302:geb13302-math-0002 years) and Southeast Asia (urn:x-wiley:1466822X:media:geb13302:geb13302-math-0003 years). Our datasets reveal emergent trade-offs across climatic and vegetation gradients between growth and life span/turnover for both wood and leaves. The spatial gradients of NPP allocation to wood/leaves are associated with canopy height, adjusted by climate condition and nutrient acquisition. The spatial gradients of wood and leaf turnover times are influenced mainly by climate and leaf characteristics.Main conclusions : Our data-driven estimates of carbon allocation and turnover times provide a basis for more detailed exploration of these mechanisms in field studies. This highlights that improved model representation of carbon allocation and turnover is necessary for more accurate prediction of future carbon dynamics.
dc.description.sponsorshipCEnter of the study of Biodiversity in Amazonia
dc.description.sponsorshipTowards a Unified theory of biotic Interactions: the roLe of environmental
dc.language.isoen
dc.publisherWiley
dc.subject.encarbon cycle modelling
dc.subject.encarbon turnover time
dc.subject.endynamic systems
dc.subject.enplant traits
dc.subject.enproductivity allocation
dc.subject.entropical ecosystem
dc.title.enVariations of carbon allocation and turnover time across tropical forests
dc.typeArticle de revue
dc.identifier.doi10.1111/geb.13302
dc.subject.halPlanète et Univers [physics]/Océan, Atmosphère
dc.subject.halPlanète et Univers [physics]/Interfaces continentales, environnement
bordeaux.journalGlobal Ecology and Biogeography
bordeaux.page1271-1285
bordeaux.volume30
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue6
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03214405
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03214405v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Global%20Ecology%20and%20Biogeography&rft.date=2021-04-20&rft.volume=30&rft.issue=6&rft.spage=1271-1285&rft.epage=1271-1285&rft.eissn=1466-822X&rft.issn=1466-822X&rft.au=YANG,%20Hui&CIAIS,%20Philippe&WANG,%20Yilong&HUANG,%20Yuanyuan&J.-P.,%20Wigneron&rft.genre=article


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