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Environmental control of land-atmosphere CO 2 fluxes from temperate ecosystems: a statistical approach based on homogenized time series from five land-use types

hal.structure.identifierEcole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine [Bordeaux Sciences Agro]
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorMOREAUX, Virginie
hal.structure.identifierGembloux Agro-Bio Tech [Gembloux]
dc.contributor.authorLONGDOZ, Bernard
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorBERVEILLER, Daniel
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorDELPIERRE, Nicolas
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorDUFRÊNE, Eric
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBONNEFOND, Jean-Marc
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCHIPEAUX, Christophe
hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorJOFFRE, Richard
hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorLIMOUSIN, Jean-Marc
hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorOURCIVAL, Jean-Marc
hal.structure.identifierUnité Mixte de Recherche sur l'Ecosystème Prairial - UMR [UREP]
dc.contributor.authorKLUMPP, Katja
hal.structure.identifierUnité Mixte de Recherche sur l'Ecosystème Prairial - UMR [UREP]
dc.contributor.authorDARSONVILLE, Olivier
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorBRUT, Aurore
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorTALLEC, Tiphaine
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorCESCHIA, Eric
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorPANTHOU, Gérémy
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierEcole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine [Bordeaux Sciences Agro]
dc.contributor.authorLOUSTAU, Denis
dc.date.accessioned2024-04-08T11:53:37Z
dc.date.available2024-04-08T11:53:37Z
dc.date.issued2020-01-01
dc.identifier.issn0280-6509
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195545
dc.description.abstractEn(2020) Environmental control of land-atmosphere CO 2 fluxes from temperate ecosystems: a statistical approach based on homogenized time series from five land-use types, ABSTRACT We assembled homogenized long-term time series, up to 19 years, of measurements of net ecosystem exchange of CO 2 (NEE) and its partitioning between gross primary production (GPP) and respiration (R eco) for five different ecosystems representing the main plant functional types (PFTs) in France. Part of these data was analyzed to determine the influence of the main environmental variables on carbon fluxes between temperate ecosystems and the atmosphere, and to investigate the temporal patterns of their variations. A multi-temporal statistical analysis of the time series was conducted using random forest (RF) and wavelet coherence approaches. The RF analysis showed that, in all ecosystems, the incident solar radiation was highly correlated with GPP and that GPP was better correlated with the temporal variations of NEE than R eco. The air temperature was the second most important driver in ecosystems with seasonal foliage, i.e., deciduous forest, cropland and grassland; whereas variables related to air or soil drought were prominent in evergreen forest sites. The environmental control on CO 2 fluxes was tighter at high frequency suggesting an increased resilience to environmental variations at longer time spans. The spectral analysis performed on three of the five sites selected revealed contrasting temporal patterns of the cross-coherence between CO 2 fluxes and climate variables among ecosystems; these were related to the respective PFT, management and soil conditions. In all PFTs, the power spectrum of GPP was well correlated with NEE and clearly different from R eco. The spectral correlation analysis showed that the canopy phenology and disturbance regime condition the spectral correlation patterns of GPP and R eco with the soil moisture and atmospheric vapour deficit.
dc.description.sponsorshipManaging and Reporting of Greenhouse Gas Emissions and Carbon Sequestration in Different Landscape Mosaics
dc.language.isoen
dc.publisherTaylor & Francis
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.enNet CO2 ecosystem exchange
dc.subject.enEcosystem respiration
dc.subject.enGross primary production
dc.subject.enspectral analysis
dc.subject.enrandom forest analysis
dc.title.enEnvironmental control of land-atmosphere CO 2 fluxes from temperate ecosystems: a statistical approach based on homogenized time series from five land-use types
dc.typeArticle de revue
dc.identifier.doi10.1080/16000889.2020.1784689
dc.subject.halSciences du Vivant [q-bio]
dc.description.sponsorshipEuropeReadiness of ICOS for necessities of integrated global observations
bordeaux.journalTellus B - Chemical and Physical Meteorology
bordeaux.page1-25
bordeaux.volume72
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue1
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02900349
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02900349v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Tellus%20B%20-%20Chemical%20and%20Physical%20Meteorology&rft.date=2020-01-01&rft.volume=72&rft.issue=1&rft.spage=1-25&rft.epage=1-25&rft.eissn=0280-6509&rft.issn=0280-6509&rft.au=MOREAUX,%20Virginie&LONGDOZ,%20Bernard&BERVEILLER,%20Daniel&DELPIERRE,%20Nicolas&DUFR%C3%8ANE,%20Eric&rft.genre=article


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