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修正的模糊综合评判法在地下水水质评价中的应用 被引量:33

Application of Modified Fuzzy Comprehensive Evaluation Method in the Evaluation of Groundwater Quality
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摘要 模糊综合评判法在水质评价中越来越为更多的环境水文地质工作者所采用,但在地下水质量评价中存在确定隶属度问题和模糊数学综合评判法的复合运算问题。通过对存在的问题进行简单的处理,对评价方法加以修正,并将修正前后的方法应用同一案例,进行评价效果对比。结果显示,由于所采用的案例区域地下水水质较差,因此导致评价结果与改进前的"相乘取大"和"取小取大"算子相似性较强,但评价结果仍显示,改进后的方法更为真实的反映了地下水水质状况,方法可行,评价结果可信,有一定的借鉴意义。 The fuzzy comprehensive evaluation method is widely used in the evaluation of water quality by the environmental hydrogeologists. However, the application of fuzzy comprehensive evaluation method in water quality assessment started rela- tively late and the research is not very thorough, therefore some problems exist in the evaluation of groundwater quality using the fuzzy comprehensive evaluation method. In this paper, the membership function and complex computing problems in the fuzzy mathematical evaluation method are introduced, the simple processing is conducted for the existing problems, and the eval- uation method is modified. At the same time, the modified method and original method are applied to the same case. The ground- water water quality in this case study area is relative poor, which leads to that the evaluation results are similar with those origi- nal operators such as "multiplication take big" and "small and big" . Moreover, the evaluation results shows that the modified method reflects the real conditions of groundwater water, which suggest that the method and evaluation results are reliable and can provide reference significance for future groundwater quality assessment projects.
作者 寇文杰
出处 《南水北调与水利科技》 CAS CSCD 北大核心 2013年第2期71-75,共5页 South-to-North Water Transfers and Water Science & Technology
基金 北京市平原区地下水环境监测与初步整治方案(K/Z-20120007)
关键词 模糊数学 水质评价 评价因子 权重 隶属度 复合运算 fuzzy mathematics water quality evaluation evaluation factors weight membership compound operation
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