Report on the proposed nangoma irrigation scheme.

abastecimiento de agua approvisionnement en eau barrage bassin versant besoin en eau conception cost analysis costo estimado dams design drainage systems eau de ruissellement embalses estimated costs farm area fertilidad del suelo flooding hidrologia hydraulic engineering hydrologie hydrology inondation necesidades de agua precipitation red de drenaje represas runoff water soil soil fertility soil types sol suelo surface d'exploitation tipos de suelos type de sol water requirements water reservoirs water supply watersheds