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Response to Editor to the comment by Schipper & Smith to our paper entitled "Continuous soil carbon storage of old permanent pastures in Amazonia"

Sébastien Fontaine 1 Clement Stahl 2 Katja Klumpp 1 Catherine Picon-Cochard 1 Marcia Mascarenha Grise 3 Camille Dezecache 1 Lise Ponchant 1, 4, 5 Vincent Freycon 6 Lilian Blanc 6 Damien Bonal 7 Benoît Burban 2 Jean-François Soussana 1 Vincent Blanfort 4 Gaël Alvarez 1
1 UREP - Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR
2 UMR ECOFOG - Ecologie des forêts de Guyane
3 Embrapa - Empresa Brasileira de Pesquisa Agropecuária
4 UMR SELMET - Systèmes d'élevage méditerranéens et tropicaux
5 ASTRO - Agrosystèmes tropicaux
6 Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement
7 EEF - Ecologie et Ecophysiologie Forestières [devient SILVA en 2018]
Abstract : First of all, we recall that the message conveyed in our paper is that Amazonian forest and old tropical pastures act as C sinks by accumulating recurrently (continuously) C in biomass and soil. We do not support the idea that deforestation increases soil C as suggested in the title of Schipper and Smith comment. In our study, pasture C sink was estimated by two independent methods: eddy covariance measurements (Eddy) and a 36-years chronosequence analyzing soil organic C stock to a depth of 100 cm (Chrono). Both methods provide evidence that pastures ≥24 years can restore all or part of C sink of Amazonian forest if sustainable management is applied. Realizing that old pastures accumulate C is crucial in the Amazonian context where pastures are currently replaced by intensive crops (e.g. soybean) inducing a possible loss of this C sink.
Mots-clés : continuous c accumulation
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https://hal.inrae.fr/hal-02622472
Déposant : Migration Prodinra <>
Soumis le : mardi 26 mai 2020 - 05:45:22
Dernière modification le : jeudi 4 mars 2021 - 09:18:03

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INRAE | UNIV-AG | INRA | ECOFOG | VETAGRO-ECOSYSTEME-PRAIRIAL | UNIV-LORRAINE | CIRAD | AGROPARISTECH | EEF-UL | GUYANE | CNRS | UDL | MONTPELLIER-SUPAGRO | SILVA

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Sébastien Fontaine, Clement Stahl, Katja Klumpp, Catherine Picon-Cochard, Marcia Mascarenha Grise, et al.. Response to Editor to the comment by Schipper & Smith to our paper entitled "Continuous soil carbon storage of old permanent pastures in Amazonia". Global Change Biology, Wiley, 2018, 24 (3), pp.e732-e733. ⟨10.1111/gcb.14028⟩. ⟨hal-02622472⟩

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