基于PSR模型的四川省升钟水库生态安全评价  

Ecological Security Evaluation Based on PSR Model for Shengzhong Reservoir in Sichuan Province

作　　者：王文敬[1] 任德有[1] 李铁松[1] 黄波[1] 李成柱 

机构地区：[1]西华师范大学国土资源学院,四川南充637009 [2]四川省环境工程评价中心南充分中心,四川南充637000

出　　处：《水土保持通报》2010年第4期198-200,共3页Bulletin of Soil and Water Conservation

基　　金：四川省科技厅软科学规划项目"嘉陵江中游城市供水水质安全对策研究"(2008ZR0049);西华师范大学大学生科技创新基金"基于PSR(压力-状态-响应)模型的升钟水库生态安全研究"

摘　　要：通过PSR(Pressure—State—Response)模型建立水库生态安全评价的指标体系,用熵权法确定17个指标的权重,运用Excel软件对数据进行处理,评价了四川省升钟水库的生态安全情况。结果表明,2004—2007年升钟水库生态安全状况呈逐年好转趋势。讨论了水库生态环境保护的多项措施,包括取缔网箱肥水养殖,加强库区居民点生活垃圾与污水处理,治理库区水土流失,减少面源与点源污染物氮、磷入库量,严防水葫芦泛滥,注重治理水体富营养,使水库的蓄水量保持在合理水平等。同时,应注意水库垂钓等新因素对升钟水库生态平衡的影响。The evaluation index of ecological security system was built using the PSR（pressure—state—response） model,entropy method was applied to define the weights of seventeen assessment indexes,and the Excel software for data processing was used to evaluate the ecological security of Shengzhong Reservoir. Results showed that the ecological security situation from 2004 to 2007 was improved. At last,several environmental protection measures for reservoir ecosystem were discussed,such as banning cage farming fertilizer,strengthening the solid waste and wastewater treatments of reservoir residents,controlling soil erosion,reducing point source and non-point source pollution by nitrogen and phosphorus,preventing the spread of water hyacinth,focusing on the management of water eutrophication,and maintaining the reservoir storage capacity in a reasonable level. At the same time,it should be noted that the new factors such as reservoir fishing or other factors affected the ecological balance of Shengzhong Reservoir.

关 键 词：PSR模型 熵权法 生态安全评价 升钟水库 

分 类 号：X171.4[环境科学与工程—环境科学] TV697[水利工程—水利水电工程]