巢湖西半湖主要入湖河流水质的模糊评价及结果分析

摘要

This paper applied the fuzzy comprehensive evaluation method tO the major rivers feeding the western Chaohu Lake. A corresponding fuzzy coefficient matrix was established and the weights to evaluate the water quality were identified in the study of the major rivers feeding the western Chaobu Lake. The final result was compared with the one ohtained by using the single factor assessment method. The results show that the water quality of most sections of the major rivers feeding the western Chaohu Lake belong to class V and bad class V. These research results by different methods are in conformity to the facts, but small differences still exist in some sections. Compared with the fuzzy comprehensive evaluation and single factor evaluation for water quality evaluation system, water quality with multiple factors can be reflected objectively and comprehensively. It provides basis for the formulation of environmental protection policies, plans for preventing and controlling water pollution as well as referential value for further research.%文章对巢湖西半湖主要入湖河流采用模糊综合评价法进行评价。通过建立相应的模糊系数矩阵及确定权重并综合评价模糊运算，最终将所得结果与单因子评价指数所得结果相比较。结果表明：巢湖西半湖入湖河流大多数断面属于V和劣V类水，两种方法的评价结果基本吻合，个别断面存在微小分歧。通过将模糊综合评价法和单因子评价法进行比较分析，客观全面地反映出了多种因子复合影响下的水质状况，为制定环保政策和水污染防治规划起到借鉴作用。