基于改进的TOPSIS模型在地下水水质评价中的应用

Cause Analysis and Solution of Impact of Occlusion on Photovoltaic Energy Output

地下水已成为人们生产生活的重要供水水源,特别是在北方地区。但据调查结果我国地下水污染十分严重,因此地下水水质综合评价也成为一项非常重要的工作。但由于水质评价因子与等级之间复杂非线性关系和地下水体污染的模糊性,目前地下水水质综合评价至今仍没有一个被广泛接受的评价模型。运用改进的熵权来取代一般的主观权值法,用改进的TOPSIS模型对肥城市6个水井的地下水水质监测数据进行水质综合评价分析。应用结果合理,计算简单。

The underground water has already become the important water supply sources for the peopled life and production, especially in the northern part of the country. However the investigation reveals that the underground water is seriously polluted in the country, therefore the comprehensive quality assessment of the underground water has also become a very important assignment. Because of the complicate non-linear relationship between the factor and the grade of water quality assessment as well as the fuzziness of the underground water body pollution, so far no assessment model that has widely been accepted is available for the comprehensive assessment of the underground water quality. In this paper the improved entropy was applied instead of the subjective weight method and the improved TOPSIS model was used to make comprehensive water quality assessment and analysis according to the quality monitoring data of the underground water collected from 6 water wells in the city. The assessment results proved rational and the calculation is simple.