河流水环境综合评价方法改进及研究

利用幂函数法、向量模法和加权平均法3种综合指数评价法与模糊评价法相结合的综合集成法--模糊综合指数法和综合加权法对常州市区几条主要河流水环境现状进行了评价,同时应用实例分别对这两种方法的综合指数进行了计算,通过对计算结果进行比较评价分析.最后,对比了模糊综合指数法与综合加权法两种指数法的优劣及适用条件.

Improvement and research on comprehensive assessment method to river water environment

Fuzzy synthetic index assessment method which combining three comprehensive index methods such as exponential function,vector module and weighing average.Fuzzy judgement was a kind of comprehensive compositive method.This paper assessed the river water environment in Changzhou by using both fuzzy synthetic index assessment method and comprehensive weighing method.Meanwhile,the authors applies instantiation to calculate comprehensive index by the above two methods and analyzed the assessment according to calculation results.At last,it also gived a comparison to the advantages and disadvantages as well as adaptive condition of the two methods.