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Interannual and spatial variability of net ecosystem production in forests explained by an integrated physiological indicator in summer

hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
hal.structure.identifierUniversity of Chinese Academy of Sciences [Beijing] [UCAS]
dc.contributor.authorLIU, Ying
hal.structure.identifierUniversity of Chinese Academy of Sciences [Beijing] [UCAS]
hal.structure.identifierChinese Academy of Sciences [Beijing] [CAS]
dc.contributor.authorWU, Chaoyang
hal.structure.identifierHebei GEO University, Shijiazhuang 050031, China
dc.contributor.authorLIU, Lin
dc.contributor.authorGU, Chengyan
hal.structure.identifierUniversity of British Columbia [UBC]
dc.contributor.authorANDREW BLACK, T.
hal.structure.identifierUniversity of British Columbia [UBC]
dc.contributor.authorJASSAL, Rachhpal
hal.structure.identifierEidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
dc.contributor.authorHÖRTNAGL, Lukas
hal.structure.identifierFree University of Bozen-Bolzano
dc.contributor.authorMONTAGNANI, Leonardo
hal.structure.identifierGöttingen State and University Library [SUB Göttingen]
dc.contributor.authorMOYANO, Fernando
hal.structure.identifierthe Russian Academy of Sciences [Moscow, Russia] [RAS]
dc.contributor.authorVARLAGIN, Andrej
hal.structure.identifierMcMaster University [Hamilton, Ontario]
dc.contributor.authorALTAF ARAIN, M.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorGOVIND, Ajit
dc.date.accessioned2024-04-08T11:50:17Z
dc.date.available2024-04-08T11:50:17Z
dc.date.issued2021-07-15
dc.identifier.issn1470-160X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195379
dc.description.abstractEnUnderstanding the feedback of ecosystem carbon uptake on climate change at temporal and spatial scales is crucial for developing ecosystem models. Previous studies have focused on the role of spring and autumn phenology in regulating carbon sequestration in forest stands, but few on the impact of physiological status in summer. However, plant accumulated the most carbon in summer compared with spring and autumn, therefore, it is of great significance to explore the role of summer phenological metrics on the variability of carbon sequestration. Using 514 site-years of flux data obtained at 40 FLUXNET sites including three forest ecosystems (i.e. evergreen needleleaf forest (ENF), deciduous broadleaf forest (DBF) and mixed forest (MF)) in Europe and North America, we compared the potential of physiological and phenological metrics of Gross Primary Production (GPP) and Ecosystem Respiration (RECO) in explaining the interannual and spatial variability (IAV and SV) of forest net ecosystem production (NEP). In view of the better performance of physiological metrics, we developed the maximum carbon uptake index (MCUI), which integrated the physiology metrics of photosynthesis and respiration in summer, and further explored its ability in explaining the IAV and SV of NEP. The results suggest that the MCUI had a better ability than respiration-growth length ratio (RGR) in predicting NEP for all three forest types. The interpretation of MCUI based on meteorological variables illustrated that the controlling meteorological factors of MCUI differed substantially among ecosystems. The summer shortwave radiation had the greatest influence on MCUI at DBF sites, while the soil water content played an important but opposite role at ENF and DBF sites, and no significant meteorological driver was found at MF sites. The higher potential of MCUI in explaining IAV and SV of NEP highlights the importance of summer physiology in controlling the forest carbon sequestration, and further confirms the significant role of peak plant growth in regulating carbon cycle of forest ecosystems. Understanding the drivers of peak plant growth is therefore of a great significance for further improving the precious of ecosystem model in the future.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/
dc.subject.enPhysiology
dc.subject.enPhenology
dc.subject.enForest
dc.subject.enFlux
dc.subject.enNet ecosystem production
dc.title.enInterannual and spatial variability of net ecosystem production in forests explained by an integrated physiological indicator in summer
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ecolind.2021.107982
dc.subject.halSciences de l'environnement
bordeaux.journalEcological Indicators
bordeaux.page1-11
bordeaux.volume129
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03357856
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03357856v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ecological%20Indicators&rft.date=2021-07-15&rft.volume=129&rft.spage=1-11&rft.epage=1-11&rft.eissn=1470-160X&rft.issn=1470-160X&rft.au=LIU,%20Ying&WU,%20Chaoyang&LIU,%20Lin&GU,%20Chengyan&ANDREW%20BLACK,%20T.&rft.genre=article


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