Rakotovao N.H. auteur aut IRD Chevallier Tiphaine auteur aut IRD Chapuis Lardy Lydie auteur aut IRD Deffontaines S. auteur aut IRD Mathé S. auteur aut IRD Ramarofidy M.A. auteur aut IRD Rakotoniamonjy T.H. auteur aut IRD Lepage A. auteur aut IRD Masso C. auteur aut IRD Albrecht Alain auteur aut IRD Razafimbelo T.M. auteur aut IRD text journalArticle eng text/pdf born digital access Rural development projects to develop sustainable agriculture need to be assessed before engaging small holder farmers at large scale. Data on agricultural systems to produce food, provide income for small holders and reduce greenhouse-gas (GHG) emissions are scarce in Sub-Saharan Africa countries. Here, we assessed the potential of agroecological practices (AP) on economic benefits to farmers, GHG balance derived from agricultural activities, and efficiency of economic investments to mitigate GHG. The study was based on a NGO rural development project, which promoted AP: agroforestry, compost, andSystem of Rice Intensification. The economic and GHG mitigation benefits were projected over a periodof 20 years on three scenarios. Two scenarios, differing by two expected levels of AP adoption, werecompared to a reference one, in which there was no NGO intervention. Socio-economic, yield and soildata were gathered on 192 farms duringfive growing seasons (2013-2018). The GHG balance wasestimated with TropiC Farm Tool and EX-ACT. The GHG emissions were reduced in both scenarioscompared to the reference one:-5.2 to-13.6 tCO2eq farm-1yr-1for scenario 1 and 2 respectively. Atthe regional scale, the projected amount of C saved per euro invested was estimated at-0.25 tCO2eqeuro-1and -0.41 tCO2eq Euro-1(orV4 to 2.5 tCO2eq-1) under scenario 1 and scenario 2. The annualcashflow of farmers increased over the 20 years. Our study highlighted the potential of AP for increasing productivity and profitability of small holder agricultural systems for the Malagasy farmers, while simultaneously contributing to climate change mitigation specialized MADAGASCAR 098 068 021 291 125220 [13 ] 2021 0959-6526 https://www.documentation.ird.fr/hor/fdi:010081577 10.1016/j.jclepro.2020.125220 0959-6526 [F B010081577] https://www.documentation.ird.fr/hor/fdi:010081577 https://www.documentation.ird.fr/intranet/publi/depot/2021-04-09/010081577.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2021-02-26 2025-02-24 fdi:010081577 fre