基于WEI+的流域水资源短缺分析  

Water Scarcity Analysis of River Basins in China Based on Water Exploitation Index Plus

作　　者：范琳琳[1] 王红瑞[2] 刘凤丽[1] 来文立[2] 洪思扬[2] 

机构地区：[1]长江科学院农业水利研究所,武汉430010 [2]北京师范大学水科学研究院,北京100875

出　　处：《长江科学院院报》2017年第4期9-14,共6页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金项目(51279006;51479003)

摘　　要：为了分析我国各流域的水资源短缺现状,引入欧盟开发改进的水资源开发利用系数(Water Exploitation Index Plus,简称WEI+),以全国10个水资源一级区作为研究对象,计算2003—2012年各水资源一级区的水资源短缺情况。结果表明:(1)WEI+指数最小的是西南诸河区,其均值为1.9%;WEI+指数最大的是海河区,其均值为130%;且南方4区的WEI+指数均小于北方6区,说明我国北方比南方面临更为严重的水资源短缺问题。(2)南方4区的WEI+指数在2003—2012年间波动不大,而北方6区的WEI+指数波动剧烈;大部分地区的WEI+指数均呈现出下降趋势,这说明区域的水资源短缺情况有所缓解。(3)WEI+指数与流域水利水电开发利用程度在空间上的分布规律基本类似,这说明WEI+指数能够有效反映区域的水资源短缺情况。In the aim of assessing the water scarcity situation of river basins in China,Water Exploitation Index Plus（WEI＋） developed by European Union was introduced to compute the water scarcity situations from 2003 to 2012in ten first-grade districts of water resources in China. Results show that the WEI＋ na is the smallest, with the average value of 1.9%, and that of Haihe River Basin is the largest, with the averagevalue of 130%. The WEI＋ values of six basins in the North are larger than those of four basins in the South , indica-ting a severe water scarcity situation in North China. The WEI＋ values of four basins in the South changed little during 2003-2012,while those of six basins in the North fluctuated greatly. Moreover,the WEI＋ values of most riv-er basins displayed a dow^nward trend,showing the alleviation of water scarcity situation. In addition,the spatial distribution pattern of WEI＋ is generally similar with that of water conservancy development and utilization degree, which indicates that WEI＋ could effectively reflect the regional water scarcity situation in China.

关 键 词：水资源短缺 改进的水资源开发利用系数(WEI+) 水资源一级区 南方4区 北方6区 

分 类 号：TV213.4[水利工程—水文学及水资源]