河西走廊地区狭义/广义水资源脆弱性对比研究  

A comparative study of narrow/general water resources vulnerability in Hexi Corridor region

作　　者：李智飞[1] 门宝辉[1] 张士锋[2] 孟秀敬[2] 孙波扬[1] 

机构地区：[1]华北电力大学可再生能源学院,北京102206 [2]中国科学院地理科学与资源研究所,北京100101

出　　处：《干旱区地理》2014年第5期939-947,共9页Arid Land Geography

基　　金：国家重点基础研究发展计划(2012CB955304);国家自然科学基金资助项目(41171032)

摘　　要：通过分析水资源脆弱性概念理念研究现状以及三种定量评价法的优缺点,提出了狭义水资源脆弱性(Narrow Water Resources Vulnerability,简称NWRV)和广义水资源脆弱性(General Water Resources Vulnerability,简称GWRV)概念,并采用压力—状态—响应(Pressure-State-Response,简称PSR)理论,构建具有一定物理机制的水资源脆弱性指标体系,分别用PS和PSR下各指标代表狭义和广义水资源脆弱性。建立水资源脆弱性综合指标评价模型,以存在生态环境问题非常严峻的河西走廊地区及其疏勒河、黑河、石羊河3个流域为评价区,进行实证研究。结果表明:(1)现状年2010年,河西走廊地区NWRV和GWRV分别为0.788 7和0.714 9,均为重度脆弱;三个流域,石羊河流域脆弱程度最为严重,疏勒河流域其次,黑河流域最小,但NWRV和GWRV均为重度脆弱;基于最严格水资源管理制度的情景年2020年,相应现状年2010年,河西走廊地区NWRV和GWRV下降率分别达到12.75%和14.04%,脆弱程度下降较大。(2)河西走廊地区,GWRV相对NWRV,其脆弱程度平均有9.57%的下降空间;NWRV代表潜在的脆弱程度,GWRV代表实际的脆弱程度;最严格水资源管理制度对NWRV和GWRV均有明显的适应作用;NWRV-GWRV线在时间序列上呈现平行下降趋势。Based on the status research of the concept of water resources vulnerability and three quantitative evalu- ations＇ merits and demerits, this paper proposes two concepts, namely the Narrow Water Resources Vulnerability （NWRV） which means potential vulnerability and the General Water Resources Vulnerability （GWRV） which means actual vulnerability. Besides, this paper builds a system of certain physical mechanism water resources vul- nerability indicator and utilizes the index of PS and PSR respectively to signify the NWRV and GWRV under the theory of Pressure--State--Response （PSR）. In accordance with the system, this paper empirically studies the Hexi Corridor region, Gansu Province, China which has acute ecological environmental problems including Shule River Basin, Heihe River basin and Shiyang River Basin. The results of this study are as follows： In the first place, the NWRV and the GWRV of Hexi Corridor belong to the level of serious vulnerability with the data of 0.788 7 and 0.714 9 respectively in status quo year of 2010. Regarding the three basins, Shiyang River Basin has the most seri- ous vulnerability, and then Shule River Basin and Black River Basin are followed. What＇ s more, in forecast year of 2020 with the most rigid water resource management, the vulnerability level of Hexi Corridor will be improved, espe- cially for the Heihe River Basin which will become moderate vulnerability with the GWRV data of 0.586 9. Howev- er, Shule River Basin and Shiyang River Basin will remain the level of serious vulnerability and Shiyang River Basin will have the most serious vulnerability in the Hexi Corridor region. In addition, the data of GWRV of Hexi Corridor will decline 9.57% compared to 2010 and the data of GWRV denotes a downward trend as well as the data of NWRV, which demonstrates that the most rigid water resource management improves vulnerability of this region. In the second place, water- producing coefficients and water-producing modulus of Hexi Corridor region are very vul- nerable

关 键 词：狭义水资源脆弱性 广义水资源脆弱性 PSR 河西走廊地区 最严格水资源管理 

分 类 号：TV213.4[水利工程—水文学及水资源]