基于模糊聚类分析的矿业城市地表水环境质量评价

Water Environmental Fuzzy Analysis on Domestic Rivers——A Typical Study Case

文章介绍了模糊聚类分析法,并运用此方法对位于阜新境内的辽河支流——柳河、绕阳河和养息牧河的地表水环境监测断面进行了聚类分析。在9个监测断面中,受污染最严重的断面位于养息牧河下游方向,此断面中,氨氮、高锰酸盐指数和化学需氧量的污染指数均严重超标。研究结果表明,辽河流域阜新段地表水水质己受到严重污染,不可以作为饮用水源地水源。聚类分析结果与实际污染情况相吻合,能客观地反映多因子共同作用下的地表水环境质量状况,这为制定辽河水环境治理方案和宏观决策提供了必要的科学依据。

The fuzzy cluster analytical method is introduced in this paper.By using this method the environmental monitoring sections of surface water of the three Liao River branches in the Fuxin territory——the Liu River,the Raoyang River and the Yangximu River,were analyzed.Among the nine monitoring sections,the most polluted one is located at the downstream area of the Yangximu River,all of the pollution indexes,such as ammonia and nitrogen,permanganate index and chemical oxygen demand,are far beyond the standards.The results show that the surface water quality of the Liao River Fuxin section is heavily polluted,the three branches will directly harm the water quality of the Liao River after affluxing into it,thus potential crises are under way to the water environmental system of estuary wetland of the Liao River.The result of fuzzy cluster analysis is matching with the practical pollution situation,can objectively reflect the quality condition of the surface water environment that is affected by multiple factors,and also can provide the necessary scientific basis for the treatment scheme and macroscopic decisions to the water environment of the Liao River.