Conservation agriculture reduces climate change impact of a popcorn and wheat crop rotation
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increased by 14% and, when compost was used, by 26%. The climate change impact of the system using compost of green waste depended strongly on how impacts of the composting process were allocated between its waste treatment and compost production functions. This finding illustrates the need to establish a consensus on the allocation of composting impacts. Conservation agriculture can sequester a large amount of C until the SOC stock reaches a new equilibrium after a few decades. Shifting towards more complex systems such as agrofor- estry could enhance C sequestration further. PLOS ONE Conservation agriculture reduces climate change impact of a crop rotation PLOS ONE | https://doi.org/10.1371/journal.pone.0285586 May 23, 2023 15 / 18
Supporting information S1 File. (XLSX) Acknowledgments We thank the Nataïs team for its support, in particular Anne-Marie Joliet, who answered our many questions during data collection. We thank Eric Ceschia of CESBIO/INRAE for his reac- tivity and help, as well as Sylvain Hypolite (Agro d’Oc) for his expert knowledge. We thank our colleagues of the Carbon Farming project, especially Ge´cica Yogo for her coordination role. Author Contributions Conceptualization: Hayo MG van der Werf. Data curation: Julie Auberger. Formal analysis: Maria Vittoria Guidoboni, Annie Duparque, Joachim Boissy, Jean-Chris- tophe Mouny. Methodology: Maria Vittoria Guidoboni, Annie Duparque, Joachim Boissy, Julie Auberger, Hayo MG van der Werf. Software: Jean-Christophe Mouny, Julie Auberger. Supervision: Hayo MG van der Werf. Writing – original draft: Maria Vittoria Guidoboni. Writing – review & editing: Annie Duparque, Julie Auberger, Hayo MG van der Werf. References 1. IPCC. Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte. V. et al., (eds.)]. Cambridge University Press, 2021. 2. IPCC. Climate Change 2014: Synthesis Report. Contribution of Working Groups I. II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Core Writing Team. R.K. Pachauri and L.A. Meyer (eds.)]. IPCC. Geneva, Switzerland, 2014. 151 pp. 3. Smith P, Bustamante M, Ahammad H, Clark H, Dong H, Elsiddig EA, et al. Agriculture Forestry and
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