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Impacts des systèmes de travail du sol et de semis sur couvert végétal sur la dynamique du C organique du sol et les émissions de gaz à effet de serre pour un système de culture à base de manioc au Cambodge

par Vira Vira Leng (Leng)

Projet de thèse en EFSA-Sciences Agronomiques

Sous la direction de Laurent Thuriès.

Thèses en préparation à Montpellier, SupAgro , dans le cadre de Biodiversité, Agriculture, Alimentation, Environnement, Terre, Eau , en partenariat avec Recyclage et Risque - GAIA (laboratoire) depuis le 01-10-2021 .

  • Titre traduit

    Impacts of tillage systems on soil organic C dynamics and GHGs emissions under a cassava-based cropping system in Cambodia


  • Résumé

    Restoring soils, by increasing their organic carbon contents, appears to be one of the most promising options for improving the sustainability of agricultural systems, as well as contributing to climate change mitigation and adaptation. Since more than a decade, the General Directorate of Agriculture (GDA), through the Department of Agricultural Land Resources Management (DALRM) in partnership with CIRAD and the Royal University of Agriculture (RUA, CE SAIN), have designed and tested a range of no-till (NT) cropping systems for the uplands of Cambodia. The main objectives of this research are to assess changes in: (1) Diachronic assessment of SOC and N stocks under conventional and different NT cropping systems; (2) Soil organic C fractions; and (3) GHGs under conventional and NT cropping systems for different cassava-based cropping patterns.