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    Impacts on greenhouse gas balance and rural economy after agroecology development in Itasy Madagascar

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    Journal Article (1.644Mb)
    Date
    2020
    Author
    Rakotovao, N.H.
    Chevallier, T.
    Chapuis-Lardy, L.
    Deffontaines, S.
    Mathé, S.
    Ramarofidy, M.A.
    Rakotoniamonjy, T.H.
    Lepage, A.
    Masso, C.
    Albrecht, A.
    Razafimbelo, T. M.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Rural development projects to develop sustainable agriculture need to be assessed before engaging smallholder farmers at large scale. Data on agricultural systems to produce food, provide income for smallholders 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, and System of Rice Intensification. The economic and GHG mitigation benefits were projected over a period of 20 years on three scenarios. Two scenarios, differing by two expected levels of AP adoption, were compared to a reference one, in which there was no NGO intervention. Socio-economic, yield and soil data were gathered on 192 farms during five growing seasons (2013–2018). The GHG balance was estimated with TropiC Farm Tool and EX-ACT. The GHG emissions were reduced in both scenarios compared to the reference one: 5.2 to −13.6 tCO2eq farm−1 yr−1 for scenario 1 and 2 respectively. At the regional scale, the projected amount of C saved per euro invested was estimated at −0.25 tCO2eq euro−1 and -0.41 tCO2eq Euro−1 (or € 4 to 2.5 tCO2eq−1) under scenario 1 and scenario 2. The annual cash flow of farmers increased over the 20 years. Our study highlighted the potential of AP for increasing productivity and profitability of smallholder agricultural systems for the Malagasy farmers, while simultaneously contributing to climate change mitigation.
    https://dx.doi.org/10.1016/j.jclepro.2020.125220
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7054
    IITA Authors ORCID
    Cargele Massohttps://orcid.org/0000-0002-3980-6832
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1016/j.jclepro.2020.125220
    Research Themes
    Natural Resource Management
    IITA Subjects
    Agribusiness; Agronomy; Climate Change; Farming Systems; Food Security; Livelihoods; Smallholder Farmers; Socioeconomy
    Agrovoc Terms
    Farming Systems; Agroforestry; Agroecology; Greenhouse Gases; Rural Development; Smallholders; Farmers
    Regions
    Africa; Southern Africa
    Countries
    Madagascar
    Hubs
    Central Africa Hub
    Journals
    Journal of Cleaner Production
    Collections
    • Journal and Journal Articles4835
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