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dc.contributor.authorEpron, Daniel
dc.contributor.authorNouvellon, Yann
dc.contributor.authorMareschal, Louis
dc.contributor.authorMoreira, Rildo Moreira e
dc.contributor.authorKoutika, Lydie-Stella
dc.contributor.authorGeneste, Blandine
dc.contributor.authorDelgado-Rojas, Juan Sinforiano
dc.contributor.authorLaclau, Jean-Paul [UNESP]
dc.contributor.authorSola, Gael
dc.contributor.authorGonçalves, José Leonardo de Moraes
dc.contributor.authorBouillet, Jean-Pierre
dc.identifier.citationForest Ecology and Management, v. 301, p. 102-111.
dc.description.abstractThe introduction of nitrogen fixing species (NFS) in fast-growing tree plantations is an alternative option to reduce fertilizer inputs. However, the success of mixed-species plantations depends on the balance between positive interactions among species (resulting from facilitation and/or complementarity) and the negative effects of interspecific competition.Using a carbon budget approach and coupling measurements of standing biomass, aboveground litterfall and soil CO2 efflux, we assessed the influence of replacing half of eucalypt trees by Acacia mangium on total belowground carbon flux (TBCF), net primary production (NPP) and its partitioning between above- and belowground growth at two tropical sites in Brazil (Itatinga) and in Congo (Kissoko) exhibiting contrasting climates, edaphic conditions and wood productions.Annual soil CO2 efflux (FS) was significantly lower in the acacia monocultures than in eucalypt monocultures and mixed-species stands at both sites. Annual FS was significantly lower at Itatinga compared to Kissoko for all stands while TBCF was significantly lower in the eucalypt stands only. In the eucalypt monocultures we found a significantly lower aboveground NPP (ANPP) and wood production (wood NPP) at Kissoko compared to Itatinga that was almost fully balanced by a significantly higher belowground NPP (BNPP), leading to similar NPP. Similarly, acacia monocultures exhibited significantly higher ANPP and wood NPP at Itatinga than at Kissoko. The mixed-species stands exhibited a significantly lower wood NPP and ANPP than the eucalypt monocultures at the Brazilian site while NPP of the mixture was not significantly different than the average NPP of the two monocultures. At the Congolese site, NPP of the mixture was significantly higher than the average NPP of the two monocultures. NPP was similar in the mixed-species stand and the eucalypt monoculture with a significantly lower partitioning of NPP to belowground production, leading to a one third higher wood biomass at harvest in the mixed-species stand.A positive effect of growing eucalypts with the nitrogen fixing acacia trees on stand wood production occurred at Kissoko but not at Itatinga. Mixed-species plantations with NFS can be advocated at sites where the productive gains resulting from nitrogen fixation are not compromised by other resource limitations. © 2012 Elsevier B.V.en
dc.relation.ispartofForest Ecology and Management
dc.subjectMixed-species plantation
dc.subjectNet primary production
dc.subjectNitrogen fixing species
dc.subjectMixed species
dc.subjectCarbon dioxide
dc.subjectNitrogen fixation
dc.subjectWood products
dc.subjectcarbon budget
dc.subjectcarbon flux
dc.subjectevergreen tree
dc.subjectgrowth rate
dc.subjectinterspecific competition
dc.subjectnet primary production
dc.subjectnitrogen fixation
dc.subjectstand structure
dc.subjecttropical environment
dc.subjectAcacia mangium
dc.subjectEucalyptus globulus
dc.titlePartitioning of net primary production in Eucalyptus and Acacia stands and in mixed-species plantations: Two case-studies in contrasting tropical environmentsen
dc.contributor.institutionFaculté des Sciences
dc.contributor.institutionCentre de Nancy
dc.contributor.institutionEcologie Fonctionnelle and Biogéochimie des Sols and Agro-écosystèmes
dc.contributor.institutionCentre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationUniversité de Lorraine, UMR 1137 Ecologie et Ecophysiologie Forestières Faculté des Sciences, F-54500 Vandoeuvre-les-Nancy
dc.description.affiliationINRA, UMR 1137 Ecologie et Ecophysiologie Forestières Centre de Nancy, F-54280 Champenoux
dc.description.affiliationCIRAD UMR 111 Ecologie Fonctionnelle and Biogéochimie des Sols and Agro-écosystèmes, F-34060 Montpellier
dc.description.affiliationCentre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles, BP 1291 Pointe-Noire
dc.description.affiliationUSP, Universidade de São Paulo Departamento de Ciências Atmosféricas IAG, CEP 05508-900 Sao Paulo, SP
dc.description.affiliationUSP, Universidade de São Paulo ESALQ Ciências Florestais, CEP 13418-900 Piracicaba, SP
dc.description.affiliationUNESP Universidade Estadual Paulista Ciência Florestal, CEP 18610-307 Botucatu, SP
dc.description.affiliationUnespUNESP Universidade Estadual Paulista Ciência Florestal, CEP 18610-307 Botucatu, SP
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt[1][2][8][10]
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