Influence of man on the hydrological cycle - Guide to policies for the safe development of land and water resources.

agricultural policies arable soils bassin versant bilan hydrique carreteras deslizamiento de tierras drainage drenaje eau souterraine erosion forest land gestion des ressources glissement de terrain grasslands groundwater herbage hidrologia hydrologie hydrology irrigation land use landslides pantano politique agricole pollution de l'eau praderas public works resource management ressource en eau riego roads route salinidad salinity sol arable suelos cultivables swamps terrain forestier tierras forestales travaux publics urbanisation urbanization utilisation des terres water balance water pollution water resources watersheds