基于海明贴近度的地下水水质熵权模糊物元评价模型

Assessment Model of Entropy Weight and Fuzzy Matter- element on Groundwater Quality Assessment Based on Haiming Approach Degree

保持良好的地下水水质是保护地下水环境、实现地下水资源可持续利用的前提,因此客观准确的地下水水质评价具有非常重要的意义。针对地下水水质评价中的不确定性,采用熵权理论确定了水质评价指标的权重系数,将海明贴近度和模糊物元分析理论相结合,并结合海河流域地下水水质情况,建立了基于海明贴近度的模糊物元评价模型。结果表明,所用模型评价结果与客观实际相符,能为地下水水质评价提供一种有效的新方法。

Maintenance of good groundwater quality is the precondition of groundwater environment protection and implementation of sustainable utilization of groundwater resources, thus the objective and accurate assessment of groundwater quality has great important significance. This study used the entropy weight theory to determine the weight coefficient of assessment indices on account of the uncertainty of groundwater quality assessment. Combined the concept of hamming approach degree with fuzzy matter-element theory and according to the groundwater quality circumstances of Haihe River basin, this study established the fuzzy matter-element assessment model based on hanuning approach degree. The results showed that the assessment result of this model was consistent with the objective reality and can provide an effective method for the assessment of groundwater quality.