陕西省渭河流域各城区水资源社会可再生性评价

陕西省渭河流域位于干旱、半干旱区,流域内许多城市都面临着水资源短缺问题.水资源社会可再生性是水资源在利用过程中所表现出的特性,其值的增强对于实现水资源的高效利用具有重要意义.本文针对陕西省渭河流域提出了基于若干指标来综合表征缺水城市水资源社会可再生性的方法,并在此基础上对该漉域6个城区的水资源社会可再生性进行了评价.通过建立城市水资源社会可再生性评价指标体系、分级评价标准.引入灰色关联理论,构建了灰色关联分析等级评价模型,并运用该模型分析了研究区域内各城区的水资源可再生程度.研究结果表明,宝鸡的水资源社会可再生性最强,西安、咸阳较强,杨凌区中等.渭南、铜川较弱.本文最后提出了增强这些城市水资源社会可再生性的途径.

Social Renewability of Water Resources of the Cities and District in the Weihe River Basin,Shanxi

The Weihe River basin mainly lies in arid and semi-arid regions of Shaanxi province, and many cities in this area faced the problem of water scarcity. Social renewability of water resources is purely about the characteristics of water resources in its utilization.The improvement of it is significant for utilizing water resource in high-efficiency. In this article, the methods, which used several indexes to show social renewability of water resources in water scarcity cities of the Weihe River basin, were put forward. By establishing the evaluation index system of social renewability of city water resources, grade evaluation standard,and introducing gray correlation theory, this gray correlation theory has been used to evaluate the degree of social renewability in cities. The results show that Baoji' s social renewability of water resources in the cities of the Wei River Basin is at the highest level, xi' an and Xianyang are at the stronger level of, Yangling district is at the middle level of,Weinan and Tongchuan are at the weaker level of. And the measures to improve it were also put forward finally.