人类活动影响下的陕西省水资源脆弱性评价

随着人口的增长,水资源供需矛盾成为制约陕西省社会经济可持续发展的重要因素之一,人类活动对陕西省水资源脆弱现状的影响越来越大。通过收集陕西省水资源、人口以及社会经济相关数据,采用函数评价方法,对陕西省10个省辖市及杨凌示范区进行水资源脆弱性评价并简要分析影响因素。结果表明:陕西省水资源脆弱性的空间差异较大,关中地区面临更严重的水资源供需问题;渭南、咸阳、杨凌3市(区)属于极脆弱区,商洛水资源脆弱性属于弱脆弱区;陕西省水资源开发利用率水资源脆弱性与水资源开发利用率存在较好的正相关关系。缩小水资源空间差异,提高水资源开发利用率对于陕西省水资源管理工作势在必行。

Evaluation of water resources vulnerability under the influence of human activities in Shaanxi Province

With the increase of population, the contradiction between supply and demand of water resources has become one of the important factors restricting the sustainable development in Shaanxi Province, and the impact of human activities on the fragile status of water resources in Shaanxi Province is becoming more and more serious. Based on the collected data on water resources, population and social economy in Shaanxi Province, the function evaluation method was used to conduct water resources vulnerability assessment and to briefly analyze the influencing factors for 10 provincial cities and Yangling demonstration zone in Shaanxi Province. The results showed that, the spatial difference of water resources vulnerability was large in Shaanxi Province, and Guanzhong region was facing more serious problem between the supply and demand of water resources. The three cities of Weinan, Xianyang and Yangling belonged to the extremely fragile areas , Shangluo belonged to fragile area of water resources. Water resources vulnerability and water resources utilization ratio in Shaanxi Province had a good positive correlation. To narrow the gap of spatial difference of water resources and to improve water resources utilization efficiency are imperative in the water resources management in Shaanxi Province.