There are extensive agricultural drylands in Africa, almost three quarters of which are already degraded to some degree (United Nations Convention to Combat Desertification: Fact sheet 11, &quot; Combating desertification &quot; ).
L &apos; Afrique comporte de vastes zones arides agricoles, dont pratiquement trois quarts sont déjà dégradées à un certain point (Convention des Nations Unies sur la lutte contre la désertification, Combating Desertification, fiche d &apos; informations n° 11).