物元分析法在黄河水质评价中的应用

为尝试将物元分析法应用于黄河水质评价,采用物元分析法对黄河某河段的水质进行了综合评价,并将评价结果与常规的单因子指数法的评价结果进行对比分析。结果表明:物元分析法与单因子指数法的评价结果存在很大差异,物元分析法评价的水质要优于单因子指数法,原因是两种方法评价的出发点不同。单因子指数法是为了体现单因子的否决权,而物元分析法是为了体现不同评价因子对水质的综合影响,评价结果更加全面、系统、真实。

Application of matter element analysis method to water quality evaluation in Yellow River

In order to try the use of matter element analysis method in water quality assessment of the Yellow River, the paper used matter element analysis method to evaluate water quality of the Yellow River, and compared the results with that of conventional single factor index method. The results showed that the assessment results of two methods were very different, the water quality evaluated by matter element analysis method was better than that by the single factor index method, the difference are caused by the different view point of two evaluation methods. Single factor index method is to reflect the veto right of single factor, and the matter element analysis method is to reflect the comprehensive effects of different evaluation factors on water quality. The result of matter element analysis method is more comprehensive, system, reality.