基于PSR模型的昆明市城市饮用水源区生态安全问题研究

发布时间：2018-03-22 05:00

本文选题：饮用水源区　切入点：松华坝水库　出处：《中国人口·资源与环境》2017年S1期 　论文类型：期刊论文

【摘要】：昆明是严重缺水的城市之一,城市饮用水生态安全问题事关昆明长远发展。本文从经济、社会和生态三方面,应用PSR(压力—状态—响应)模型构建了城市饮用水源区生态安全评价指标体系,并对昆明市两大水库—松华坝水库和云龙水库进行实证分析,得出整体上两者都处于比较安全状态。松华坝水库的生态安全指数为0.895,已基本接近安全水平,松华坝水库准则层,压力系统安全指数为0.816,状态系统安全指数为0.986,响应系统安全指数为0.881,状态系统属于安全状态,压力系统和响应系统均属于较安全状态;云龙水库生态安全指数是0.826,云龙水库准则层,压力系统安全指数为0.937,状态系统安全指数为0.897,响应系统安全指数为0.645,压力系统属于安全状态,状态系统均属于较安全状态,响应系统属于较不安全状态,说明云龙水库的生态压力较小,但保护措施力度较弱,生态环境保护程度需要进一步提升。
[Abstract]:Kunming is one of the cities with serious water shortage. The ecological safety of drinking water in the city is related to the long-term development of Kunming. Based on the PSR-model, the ecological safety evaluation index system of urban drinking water source area is constructed, and the empirical analysis of two major reservoirs in Kunming, Songhuaba Reservoir and Yunlong Reservoir, is carried out. It is concluded that both of them are in a relatively safe state. The ecological safety index of Songhuaba Reservoir is 0.895, which is close to the safety level. The safety index of the pressure system is 0.816, the safety index of the state system is 0.986, and the safety index of the response system is 0.881.The state system belongs to the safe state, and the pressure system and the response system belong to the safer state. The ecological safety index of Yunlong reservoir is 0.826, the criterion layer of Yunlong reservoir is 0.937, the safety index of state system is 0.897, the safety index of response system is 0.645, the pressure system belongs to safe state, and the state system belongs to safe state. The response system is unsafe, which indicates that the ecological pressure of Yunlong reservoir is low, but the protection measures are weak, and the degree of ecological environment protection needs to be further improved.
【作者单位】：西南林业大学;
【基金】：云南省哲学社会科学研究基地课题项目“昆明市城市饮用水源区生态保护问题研究”(批准号:JD2015YB25)
【分类号】：TU991.1;X826

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