基于物元可拓法对郑州市地表水水质评价

研究运用物元可拓法对郑州市6条河流进行水质评价,以事物、特征及其数值为物元,建立水质评价物元模型,对评价标准和实测数据进行归一化,运用归一化数据,建立所评水质矩阵,计算出各评价因子与各水质级别的关联度。通过层次分析法确定各评价因子权重,最后,计算出综合关联度确定水质等级。评价结果显示:如意湖水质等级Ⅲ;熊耳河水质等级Ⅳ;东风渠和十八里河水质等级均为Ⅴ,但十八里河水质要优于东风渠;金水河和贾鲁河都为超过Ⅴ类水,但金水河优于贾鲁河。更多还原

Quality Evaluation for Surface Water in Zhengzhou Based on Matter-element Extension Method

Here,the matter-element extension method is used for the water quality evaluation of six rivers in Zhengzhou.Firstly,the matter-element model of water quality evaluation is established with things,characteristic and value as matter-element,the evaluation standard and measured data are normalized,the water quality evaluation matrix is built up according to the definition of classical field,joint field and matter-element by using the normalized data,and the correlation degree of evaluation factors and water quality level is calculated.Then,the evaluation factor weight is determined through the analytic hierarchy process.Finally,the comprehensive correlation is calculated to determine the water quality level.The results show that the water quality grade of Ruyi Lake is Ⅲ;Xionger River is Ⅳ;Dongfeng Channel and Shibali River are Ⅴ,but the water quality of Shibali River is superior to that of Dongfeng Channel;Jinshui River and Jialu River have surpassed Ⅴ,but the water quality of Jinshui River is better than that of Jialu River.