长江江苏段饮用水水源地生态风险评价  

Ecological risk assessment of drinking water source in Jiangsu section of Yangtze River

作　　者：方国华[1] 袁婷 林榕杰[1] FANG Guohua;YUAN Ting;LIN Rongjie(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《水资源保护》2018年第6期12-16,共5页Water Resources Protection

基　　金：江苏省水利科技项目(2015056)

摘　　要：运用压力-状态-响应模型,通过主成分分析法构建包括农药化肥施用强度、植被覆盖率、环保投资占GDP比例、水土流失率、水环境自净能力和土壤侵蚀强度等6个指标的饮用水水源地生态风险评价指标体系。采用层次分析法和专家咨询相结合确定指标权重,构建长江江苏段生态风险评价模型。以长江江浦-浦口水源地为例,利用遥感软件及地理信息系统(RS/GIS)量化生态风险评价的指标,计算得到江浦-浦口水源地生态风险值为0.3657,处于较低风险度范围。Based on the pressure-state-response （PSR） model and principal component analysis, the ecological risk assessment index system of drinking water source area was constructed, which included 6 indexes, such as pesticide fertilizer application intensity, vegetation coverage, environmental protection investment proportion to CDP, soil erosion rate, water environment self-purification capacity and soil erosion intensity. In order to construct the ecological risk assessment model of Jiangsu section of the Yangtze River, analytic hierarchy process （AHP） and expert consultation were used to determine the index weight. Taking Jiangpu-Pukou water source area of the Yangtze River as an example, using remote sensing software and geographic information system （ RS/CIS ） to quantify the indexes of ecological risk assessment, the ecological risk value of Jiangpu-Pukou water source area was calculated to be 0. 365 7, which was a lower risk degree.

关 键 词：RS/GIS 饮用水水源地 生态风险评价 长江江苏段 

分 类 号：TV213.4[水利工程—水文学及水资源]