| Water using and transforming efficiency of rainwater harvesting： concept and ways of enhancing |
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| DOI：10.7606/j.issn.1000-7601.2008.03.40 |
| Key Words: rainwater harvesting water using and transfor ming efficiency enhancing way |
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| Abstract: |
| Rainwater harvesting for agriculture is the agricultural activity which collects stores runoff and uses it for drinking sanitation and supplemental irrigation. It includes several interrelated processes ：rainwater collecting rainwater storing rainwater transporting and rainwater utilizing. Prevenient researches of rainwater harvesting focused more on each individual process or technique and did not concern the processes or techniques as a whole. This resulted in a loose relationship of above processes and low water transfor ming efficiency from one process to another. In this paper the concept of Water Using and Transfor ming Efficiency of rainwater harvesting is put for ward systematically. The sub-processes of rainwater harvesting-rainwater collecting rainwater reserving rainwater transporting and rainwater using are studied and analyzed as a whole. Then combining some experi mental data several ways to enhance rainwater using and transfor ming efficiency are provided. |