南淝河水环境质量的改进密切值法综合评价

Comprehensive assessment of the water quality of the South Feihe River using the modified intimate data method

密切值法是多目标决策中的一种优选法,它适用于多测点、多指标的质量评价;水环境是一个多因素、多因子的复合体,因此可以用密切值法来进行评价。文章对合肥市南淝河水环境质量用密切值法进行了综合评价,评价项目取该河14个监测点的主要污染物CODcr、TP及NH3-N等3项监测指标作为评价因子,得出了评价结果并对污染程度进行了排序;与向量模评价法进行比较,结果表明该方法切实可行。

The intimate data method, which is an optimization method for the multi-objective decisionmaking, is suitable to the assessment of environmental quality which concerns multi-monitoring points and multi-items. In this paper, the intimate data method is used to assess the water quality of the South Feihe River. Fourteen monitoring points are taken,and the CODcr, TP, NH3-N are utilized as assessment items. The assessment results are compared with those obtained by the vector module method,which indicates that the presented method is practical. An order of the contamination degree of monitoring points is also given.