Reclamation and conservation methods for agriculture and reforestation in indurated and eroded volcanic soils are reported. Mechanized methods used specially in the realization of progressive development terraces has lower costs than flat terraces built simultaneously to the sub-soiling. Some reforestation methods used in Mexico have a cost similar to those of reforestation in non indurated soils of Ecuador. (Résumé d'auteur).
Plan de classement
Erosion et conservation des sols [068EROSOL]
;
Agriculture, système de production, machinisme agricole [098AGRIC]
Descripteurs
COUT DE PRODUCTION AGRICOLE ; AGRICULTURE ; EROSION ; LUTTE ANTIEROSIVE ; DEFRICHEMENT ; METHODE ; REFORESTATION ; SYSTEME DE CULTURE ; PROPRIETE CHIMIQUE ; TEPETATE ; CANGAHUA ; REHABILITATION DU SOL ; SOL VOLCANIQUE