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Overview of the biochar sector in Viet Nam and the AI4Biochar tool

Technical report












Flammini, A., Conchedda, G., Do, X.L., Colangeli, M., Testa, L., Tubiello, F.N. &Morese, M.M. 2025. Overview of the biochar sector in Viet Nam andthe AI4Biochar tool – Technical report. Rome, FAO. 



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    AI4Biochar: applying AI-driven field boundary recognition to the biochar sector 2025
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    Agricultural residues in Viet Nam, a major agricultural producer, are abundant yet underutilized. Converting these residues into biochar offers a sustainable alternative to the widespread burning practices, which release greenhouse gases and air pollutants. The use of biochar as soil amendment could enhance soil structure while being a powerful carbon sequestrator. However, the sector’s development is hindered by a lack of detailed data, including geospatial, for cost–benefit analyses and for optimal placement of biochar production unit networks. To address these gaps, this paper introduces AI4Biochar, an AI-driven tool that automatically delineates crop field boundaries, integrates production data and sustainability indicators, and streamlines biochar production, resource management, environmental impact assessment, and market development within a geospatial framework. This paper presents the methodological approach used in the development of AI4Biochar and the results from a use-case application of the tool in a rice-producing district of Viet Nam.
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    FAO 50th Anniversary 1995
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    This issue of Unasylva commemorates 50 years of FAO's experience in and commitment to international forestry development. Notwithstanding this focus, the issue is essentially forward-looking. Articles written by senior officers of the Forestry Department consider key issues facing world forestry today, and challenges for the future. Lessons are also drawn from past experience. In this respect, the interview with Ren Fontaine, one of the original FAO foresters, is of particular interest, as are t he short "reflections" of past members of the Forestry Department that are liberally sprinkled through the issue.

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