Carbon isotopic signature of CO 2 emitted by plant compartments and soil in two temperate deciduous forests
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ORIGINAL PAPER
Carbon isotopic signature of CO2 emitted by plant compartments and soil in two temperate deciduous forests Florence Maunoury-Danger & Nicolas Chemidlin Prevost Boure & Jérôme Ngao & Daniel Berveiller & Claude Brechet & Eric Dufrene & Daniel Epron & Jean-Christophe Lata & Bernard Longdoz & Caroline Lelarge-Trouverie & Jean-Yves Pontailler & Kamel Soudani & Claire Damesin
Received: 28 July 2012 / Accepted: 29 October 2012 / Published online: 15 November 2012 # INRA and Springer-Verlag France 2012
Abstract & Context The carbon isotope composition of the CO2 efflux (δ13CE) from ecosystem components is widely used to investigate carbon cycles and budgets at different ecosystem scales. δ13CE, was considered constant but is now known to
vary along seasons. The seasonal variations have rarely been compared among different ecosystem components. & Aims We aimed to characterise simultaneously the seasonal dynamics of δ13CE in different compartments of two temperate broadleaved forest ecosystems.
Handling Editor: Erwin Dreyer Contribution of the co-authors Florence Maunoury-Danger Nicolas Chemidlin Prevost Boure, Jérôme Ngao, Daniel Berveiller, Claude Brechet, Eric Dufrene, Daniel Epron, Jean-Christophe Lata, Bernard Longdoz, Caroline Lelarge Trouverie, Jean-Yves Pontailler, Kamel Soudani, Claire Damesin: performing practical work, field sampling, phenological and climatic measurements and isotopic analysis from Barbeau and Hesse sites. Florence Maunoury-Danger Nicolas Chemidlin Prevost Boure, Jérôme Ngao, Bernard Longdoz, Daniel Epron, Claire Damesin: data analyses Claire Damesin: designing the experiment and coordinating the research projects ‘Ministère délégué à la recherche-ACI Jeunes Chercheurs’ (no. JC10009) and ‘Programme National ACI/FNS ECCO PNBC’ (convention no. 0429 FNS) Florence Maunoury-Danger: writing the paper F. Maunoury-Danger (*) : N. Chemidlin Prevost Boure : K. Soudani : C. Damesin AgroPariTech, Ecologie Systématique et Evolution, UMR 8079, CNRS, Univ. Paris-Sud, Orsay 91405, France e-mail: [email protected] D. Berveiller : E. Dufrene : J.-Y. Pontailler CNRS, UMR 8079, Ecologie Systématique et Evolution, Orsay 91405, France
J.-C. Lata UMR 7618, Ecole Normale Supérieure, UPMC-Bioemco, 46 Rue d’Ulm, 75230 Paris Cedex 05, France C. Lelarge-Trouverie UMR 8618, Institut de Biotechnologie des Plantes, Univ. Paris-Sud, Orsay 91405, France
J. Ngao : C. Brechet : B. Longdoz INRA, Écologie et Écophysiologie Forestières, UMR 1137, Champenoux 54280, France
Present Address: F. Maunoury-Danger Université de Lorraine, LIEBE, CNRS, UMR 7146, Metz 57070, France
D. Epron Écologie et Écophysiologie Forestières, UMR 1137, Université de Lorraine, Vandoeuvre 54506, France
Present Address: J. Ngao INRA, Clermont Université Blaise Pascal, UMR 547 PIAF, 63100 Clermont-Ferrand, France
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Methods Using manual chambers and isotope ratio mass spectrometry, we recorded simultaneously δ13CE and δ13C of organic matter in sun leaves, current-year twigs, trunk bases and soil in an oak and
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