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dc.contributor.authorMigliavacca, Mirco
dc.contributor.authorReichstein, Markus
dc.contributor.authorRichardson, Andrew D.
dc.contributor.authorColombo, Roberto
dc.contributor.authorSutton, Mark A.
dc.contributor.authorLasslop, Gitta
dc.contributor.authorTomelleri, Enrico
dc.contributor.authorWohlfahrt, Georg
dc.contributor.authorCarvalhais, Nuno
dc.contributor.authorCesatti, Alessandro
dc.contributor.authorMahecha, Miguel D.
dc.contributor.authorMontagnani, Leonardo
dc.contributor.authorPapale, Dario
dc.contributor.authorZaehle, Sönke
dc.contributor.authorArain, Altaf
dc.contributor.authorArneth, Almut
dc.contributor.authorBlack, Andrew
dc.contributor.authorCarrara, Arnaud
dc.contributor.authorDore, Sabina
dc.contributor.authorGianelle, Damiano
dc.contributor.authorHelfter, Carole
dc.contributor.authorHollinger, David
dc.contributor.authorKutsch, Werner L.
dc.contributor.authorLafleur, Peter M.
dc.contributor.authorNouvellon, Yann
dc.contributor.authorRebmann, Corinna
dc.contributor.authorDa Rocha, Humberto R.
dc.contributor.authorRodeghiero, Mirco
dc.contributor.authorRoupsard, Olivier
dc.contributor.authorSebastià, Ma. T.
dc.contributor.authorSeufert, Guenther
dc.contributor.authorSoussana, Jean- Françoise
dc.date.accessioned2016-12-12T10:15:39Z
dc.date.issued2011
dc.identifier.issn1354-1013
dc.identifier.urihttp://hdl.handle.net/10459.1/58791
dc.description.abstractIn this study we examined ecosystem respiration (RECO) data from 104 sites belonging to FLUXNET, the global network of eddy covariance flux measurements. The goal was to identify the main factors involved in the variability of RECO: temporally and between sites as affected by climate, vegetation structure and plant functional type (PFT) (evergreen needleleaf, grasslands, etc.). We demonstrated that a model using only climate drivers as predictors of RECO failed to describe part of the temporal variability in the data and that the dependency on gross primary production (GPP) needed to be included as an additional driver of RECO. The maximum seasonal leaf area index (LAIMAX) had an additional effect that explained the spatial variability of reference respiration (the respiration at reference temperature Tref515 1C, without stimulation introduced by photosynthetic activity and without water limitations), with a statistically significant linear relationship (r250.52, Po0.001, n5104) even within each PFT. Besides LAIMAX, we found that reference respiration may be explained partially by total soil carbon content (SoilC). For undisturbed temperate and boreal forests a negative control of total nitrogen deposition (Ndepo) on reference respiration was also identified. We developed a new semiempirical model incorporating abiotic factors (climate), recent productivity (daily GPP), general site productivity and canopy structure (LAIMAX) which performed well in predicting the spatio-temporal variability of RECO, explaining 470% of the variance for most vegetation types. Exceptions include tropical and Mediterranean broadleaf forests and deciduous broadleaf forests. Part of the variability in respiration that could not be described by our model may be attributed to a series of factors, including phenology in deciduous broadleaf forests and management practices in grasslands and croplands.ca_ES
dc.description.sponsorshipThis work is the outcome of the La Thuile FLUXNET Workshop 2007, which would not have been possible without the financial support provided by CarboEuropeIP, FAO-GTOS-TCO, iLEAPS, Max Planck Institute for Biogeochemistry, National Science Foundation, University of Tuscia and the US Department of Energy.ca_ES
dc.language.isoengca_ES
dc.publisherBlackwell Publishing Ltdca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1111/j.1365-2486.2010.02243.xca_ES
dc.relation.ispartofGlobal Change Biology, 2011, vol. 17, núm. 1, p. 390-409ca_ES
dc.rights(c) Blackwell Publishing Ltd, 2010ca_ES
dc.subjectEcosystem respirationca_ES
dc.subjectEddy covarianceca_ES
dc.subjectFluxnetca_ES
dc.titleSemiempirical modeling of abiotic and biotic factors controlling ecosystem respiration across eddy covariance sitesca_ES
dc.typearticleca_ES
dc.identifier.idgrec014547
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1111/j.1365-2486.2010.02243.x
dc.date.embargoEndDate10000-01-01


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