Discussion on management countermeasures of agricultural water resource in vulnerable region of water resource in south China — A case study of Hengyang basin |
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DOI:10.7606/j.issn.1000-7601.2006.01.34 |
Key Words: Hengyang basin water resource crop structure vulnerability of water resource ecological model |
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Abstract: |
The primary representations of the vulnerabilities of water resource in Hengyang basin where is a typical hilly region with red and purple soils in south China are analyzed: the precipitation resource varies greatly in spatial and temporal distribution;the soils and rock property are not in favor of water and soil conserving;the structure of crops needs a high water consumption;and the farm irrigation works are timeworn and frangible.Some management countermeasures are proposed: constructing new water conservancy projects and improving old irrigation works,intensifying the utilization process of surface rainfall sources,and establishing water-saving cropping-forestry-herbage compound ecological system. |