南京市水环境生态安全评价

基于“压力-状态-响应”概念模型，构建3层次的水环境生态安全评价体系，用标准化和熵权法确定评价体系中各指标的标准化值和权重，采用综合指数评价法计算得到水环境生态安全综合指数评价值。划分等级，建立综合指数评价值与生态安全评价之间的等级关系，并对南京市水环境生态安全进行评价，结果表明：2005-2012年南京市水环境生态安全综合评价指数值处于上升状态，水环境生态安全由中警状态（水环境较差）进入预警状态（水环境一般）。

Ecological Security Assessment of the water Environment in Nanjing City

On the basis of the “Pressure-State-Response” Model, a 3 layer indicator system of water environment ecological security is put forward. The standardized value and weight of indicators were determined by using standardization and entropy method. The integrated index ratio of water environment ecological security evaluation was obtained by using integrated index method. Based on this, a hierarchy classification method was used to establish the hierarchy relationships of comprehensive index value and ecological security evaluation. Evaluate of water environment ecological security of Nanjing city, the results show that the integrated index value of water environment ecological security of Nanjing data from 2005 to 2012 was in the rising state, water environment state from the police state (poor) enter the warning state (general).