基于改进物元分析和对应分析的水质评价研究

Study on Modified Water Quality Assessment based on Matter Element and Correspondence Analysis

水质评价是控制水体污染,提高水资源管理水平的关键环节.引入粗糙集理论,实现对水质监测指标的权重确定,采用物元分析模型,以天津地区主要河流的水质数据为研究对象进行评价,同时,运用对应分析方法,将样本点与指标有机结合,分析样本点的水质状况和污染因子,从而在客观评价水质的基础上,给出了科学合理的评价结果.

Water quality evaluation is the key link of controlling water pollution and improving water management level. Rough set was introduced to determine weights. Matter element model was applied to evaluate primary rivers in Tianjin. Correspondence analysis was used to analyze water quality and pollution factors by discussing the relationship between sampling points and evaluation index. Thereby, based on evaluating water quality objectively, scientific and rational evaluation results were presented.