灰色聚类与水质污染综合评价

Grey Cluster and Comprehensive Evaluation of Groundwater Quality

目前在水质污染综合评价中广泛采用的是模糊数学中的综合评判方法。与“综合污染指数法”相比,该方法避免了划分间隔过大而不能反映水质污染实际情况的问题,因此引起广大环保工作者的兴趣。但模糊综合评判法采用“取小”(∧)、“取大”(∨)法时则误差较大,甚至出现反常情况,抑或出现“失真”或“失效”而无法判别。为此,本文提出用灰色聚类进行水质污染综合评价的方法。由于其具有分辨率高和分析直观等特点,因此不会出现反常情况。

Grey cluster is a method which converts the cluster sample to a white to judge the kind of the given cluster sample. Comprehensive evaluation of groundwater quality is a problem with determinate extension but inderminate intension, it does fall in the scope of grey system. In this paper, we deal with such a problem by means of grey cluster depending upon the grey-white function of groundwater quality standard. The results obtained by this method in practice, as compared with those derived from fuzzy mathematics, were satisfactory.