[The deterioration of the cover vegetation and its socio-economic consequences in the Toussiana region: Houet province]

almacenamiento arenosol arenosoles arenosols bois de chauffage burkina faso canopy cereales cereals commercialisation couvert cropping systems cubierta de copas desertification deterioro del suelo fuelwood marketing mercadeo migration production reforestation sistemas de cultivo soil deterioration stockage storage