Estudio de la cuenca del río grande de Carazo, para su rescate ecológico

agricultural structure ayuda al desarrollo bassin versant classification des sols comunidades rurales conservation des ressources cover plants crops cultivos deforestation development aid education escorrentia geographical distribution land use life tables mode de faire-valoir nicaragua plantas de cobertura plante de couverture plante de culture population active population rurale population urbaine production proyectos de desarrollo resource conservation rural communities rural population service social servicios sociales social services soil classification sostenibilidad structure agricole tablas de mortalidad table de survie taxonomia tenencia tenure urban population utilisation des terres watersheds working population