Report on the proposed chibila irrigation sheme.

barrage bassin versant besoin en eau canal canales canals cartografia cartographie cartography conception cost analysis costo estimado dams design drainage systems eau de ruissellement estimated costs farm area fertilidad del suelo hidrologia hydraulic engineering hydrologie hydrology irrigation necesidades de agua precipitation red de drenaje represas riego runoff water soil soil fertility soil types sol suelo surface d'exploitation tipos de suelos type de sol water requirements watersheds