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<title lang=en>Root exclusion through trenching does not affect the isotopic composition of soil CO2 efflux</title>
<creator>Chemidlin Prévost-Bouré, Nicolas</creator>
<creator>Ngao, Jérome</creator>
<creator>Berveiller, Daniel</creator>
<creator>Bonal, D.</creator>
<creator>Damesin, Claire</creator>
<creator>Dufrene, Eric</creator>
<creator>Lata, Jean-Christophe</creator>
<creator>Le Dantec, Valérie</creator>
<creator>Longdoz, B.</creator>
<creator>Ponton, Stéphane</creator>
<creator>Soudani, Kamel</creator>
<creator>Epron, Daniel</creator>
<contributor>Ecologie Systématique et Evolution (ESE) ; Université Paris-Sud - Paris 11 (UP11) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Biogéochimie et écologie des milieux continentaux (Bioemco) ; École normale supérieure - Paris (ENS Paris) - Institut National de la Recherche Agronomique (INRA) - Université Pierre et Marie Curie - Paris 6 (UPMC) - AgroParisTech - Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Centre d'études spatiales de la biosphère (CESBIO) ; Université Paul Sabatier - Toulouse 3 (UPS) - Institut national des sciences de l'Univers (INSU - CNRS) - Observatoire Midi-Pyrénées (OMP) - Centre National d'Etudes Spatiales (CNES) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Ecologie et Ecophysiologie Forestières (EEF) ; Institut National de la Recherche Agronomique (INRA) - Université de Lorraine (UL)</contributor>
<contributor>Laboratoire de Biologie et Ecophysiologie ; Université de Franche-Comté (UFC)</contributor>
<contributor>Supported by the French National programme ‘ACI/FNS ECCO, PNBC' and by the ‘Observatoire de Recherche en Environnement “fonctionnement des écosystèmes forestiers' (F-ORE-T)</contributor>
<description>International audience</description>
<source>ISSN: 0032-079X</source>
<source>EISSN: 1573-5036</source>
<source>Plant and Soil</source>
<publisher>Springer Verlag</publisher>
<identifier>bioemco-00353850</identifier>
<identifier>https://hal-bioemco.ccsd.cnrs.fr/bioemco-00353850</identifier>
<source>https://hal-bioemco.ccsd.cnrs.fr/bioemco-00353850</source>
<source>Plant and Soil, Springer Verlag, 2009, 319 (1-2), pp.1-13. 〈10.1007/s11104-008-9844-5〉</source>
<identifier>DOI : 10.1007/s11104-008-9844-5</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s11104-008-9844-5</relation>
<language>en</language>
<subject lang=en>Stable carbon isotopes</subject>
<subject lang=en>Natural abundance</subject>
<subject lang=en>Soil respiration</subject>
<subject lang=en>Trenched plot</subject>
<subject lang=en>Rainforest</subject>
<subject lang=en>Temperate forest</subject>
<subject>[SDE.BE] Environmental Sciences/Biodiversity and Ecology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Disentangling the autotrophic and heterotrophic components of soil CO2 efflux is critical to understanding the role of soil system in terrestrial carbon (C) cycling. In this study, we combined a stable C-isotope natural abundance approach with the trenched plot method to determine if root exclusion significantly affected the isotopic composition (δ13C) of soil CO2 efflux (RS). This study was performed in different forest ecosystems: a tropical rainforest and two temperate broadleaved forests, where trenched plots had previously been installed. At each site, RS and its δ13C (δ13CRs) tended to be lower in trenched plots than in control plots. Contrary to RS, δ13CRs differences were not significant. This observation is consistent with the small differences in δ13C measured on organic matter from root, litter and soil. The lack of an effect on δ13CRs by root exclusion could be from the small difference in δ13C between autotrophic and heterotrophic soil respirations, but further investigations are needed because of potential artefacts associated with the root exclusion technique.</description>
<date>2009-06-01</date>
</dc>
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