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Water Harvesting for Plant Production

出版	World Bank, 1988
主題	Nature / Natural ResourcesNature / Water SupplyScience / Life Sciences / EcologyTechnology & Engineering / Agriculture / IrrigationTechnology & Engineering / Environmental / Water Supply
ISBN	08213114259780821311424
URL	http://books.google.com.hk/books?id=5-LzVhQfioYC&hl=&source=gbs_api

註釋This report examines specific water harvesting systems in sub-Saharan Africa. Case studies of thirteen systems from six different countries are presented, and conclusions are drawn under the headings of techniques and engineering, production, socio-economic and project management aspects. A number of projects throughout the region, set up in the 1980's, have included water harvesting components. However, there is a wide range of techniques, approaches and costs - and the impact of these projects varies considerably. The majority of systems introduced are for crop production, but there are examples of water harvesting to establish trees in dry areas and for rehabilitation of grazing land also. The need for voluntary participation in all stages of project development is highlighted. It is evident that without this participation there is little or no chance of widespread adoption. The importance of indigenous systems of water harvesting, and their potential role as a base for planning, is stressed in the conclusions.