Jordan: dryland farming: the planning and design of soil conservation works in the Baq'a Valley

aptitude des terres barrage barrage en terre besoin en eau canal canales canals conception conservation des sols construction materials dams data processing design digue diques diques de tierras drainage systems earth dams embankments engineering fluid flow instalaciones de almacenamiento installation de stockage irrigation land suitability measurement necesidades de agua pipes planification planning precipitation procesamiento de datos red de drenaje represas ressource en eau riego silty soils site factors soil conservation sol limoneux storage structures suelo limoso terraces terrasse terrazas tuyau volume volumen water requirements water resources