熵权集对分析法在沁河水质评价中的应用

根据沁河河南段水质的实测资料,利用熵权集对分析法计算各断面加权平均联系度,对各断面水质进行了综合评价。结果表明:沁河上游武陟县S235沁河特大桥以上水质较好,大部分为Ⅲ类,部分河段可达Ⅱ类;沁河下游武陟县阳城乡南关村以下水质较差,为Ⅳ类。熵权集对分析法能够很好地用于地表水质定量分析与评价,具有使用方便、计算简单、信息利用率高、结果准确等优点。

Application of Entropy Weight Set Pair Analysis in Qinhe River Water Quality Evaluation

According to the measured data of the water quality of Qinhe River in Henan section,using entropy weight set pair analysis,the paper obtains the average weighted connection degree of each section and made the integrated evaluation of water quality in every section.The results show that the water above the S235 Qinhe River Bridge in Wuzhi which is the upper Qinhe River is of better quality,the majority of which is class Ⅲ,and part of which is class Ⅱ;the water following the Nanguan Country in Wuzhi in the lower Qinhe River is of poorer quality,which is class Ⅳ.The entropy weight set pair analysis can be of good usage in the quantitative analysis and evaluation of surface water quality,and it has the advantages of convenient use,simple computation,high rate of information utilization,the accurate and reliable result,and so on.