基于熵权法的集对分析模型在蛤蟆通流域地下水水质评价中的应用
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摘要
地下水水质评价可为地下水资源开发利用与保护提供科学依据。针对传统水质评价法指标存在随机性、模糊性和不确定性等特点,根据蛤蟆通流域86个地下水监测数据,选取了NH4+,NO2-,Fe2+,Mn2+,Zn2+,CODMn6项能反映水质的指标体系,运用熵权法确定评价指标的权重,构建了基于熵权法的集对分析模型,并利用该模型对蛤蟆通流域地下水水质进行评价,并将评价结果与修正的内梅罗指数法的计算结果进行了对比分析。结果表明:蛤蟆通流域地下水水质中等偏下,Ⅳ,Ⅴ级水质的地下水分布占较大面积,而Ⅱ,Ⅲ级地下水分布所占面积较小。评价结果与修正的内梅罗指数评价法反映的水质特点具有一致性,与实际情况相符。可见基于熵权法的集对分析模型合理可靠。
The evaluation of groundwater quality serves as a scientific basis for the exploitation and protection of groundwater resources. The indicators of traditional water quality assessment models are random,fuzzy and uncertain. In view of this,a set pair analysis model based on entropy method is established and applied to the groundwater quality assessment for Hamatong drainage basin. According to data of 86 monitoring points,six indicators,including NH_4~+,NO_2~-,Fe~(2+),Mn~(2+),Zn~(2+),and CODMnare selected and given weight by using entropy weight method. The assessment result is compared with that of modified Nemerow index method. The results implies that the groundwater quality of Hamatong drainage basin is below average,with Ⅳ and Ⅴ levels accounting for a large water area,while Ⅱ and Ⅲ levels occupying a small area. The assessment result is consistent with that of the modified Nemerow index method,both comforting well with reality. The set pair analysis model based on entropy weight is proved rational and reliable.
The evaluation of groundwater quality serves as a scientific basis for the exploitation and protection of groundwater resources. The indicators of traditional water quality assessment models are random,fuzzy and uncertain. In view of this,a set pair analysis model based on entropy method is established and applied to the groundwater quality assessment for Hamatong drainage basin. According to data of 86 monitoring points,six indicators,including NH_4~+,NO_2~-,Fe~(2+),Mn~(2+),Zn~(2+),and CODMnare selected and given weight by using entropy weight method. The assessment result is compared with that of modified Nemerow index method. The results implies that the groundwater quality of Hamatong drainage basin is below average,with Ⅳ and Ⅴ levels accounting for a large water area,while Ⅱ and Ⅲ levels occupying a small area. The assessment result is consistent with that of the modified Nemerow index method,both comforting well with reality. The set pair analysis model based on entropy weight is proved rational and reliable.
引文
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[7]林青,由文辉,徐凤洁,等.滴水湖浮游动物群落结构及其与环境因子的关系[J].生态学报,2014,34(23):6918-6929.
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[13]周荣喜,单欣涛,杨杰,等.基于熵权的区间型多属性决策方法在湖泊水质评价中的应用[J].环境科学学报,2013,33(3):910-917.
[14]寇文杰,林健,陈忠荣,等.内梅罗指数法在水质评价中存在问题及修正[J].南水北调与水利科技,2012,10(4):39-41,47.
[2]付江波,李新,周静,等.聚类分析和标识指数法在苏州城区河道的应用[J].环境工程,2016,34(1):103-107.
[3]张颖,高倩倩.基于随机森林分类算法的巢湖水质评价[J].环境工程学报,2016,10(2):992-998.
[4]陈仁杰,钱海雷,袁东,等.改良综合指数法及其在上海市水源水质评价中的应用[J].环境科学学报,2010,30(2):431-437.
[5]徐健,吴玮,黄天寅,等.改进的模糊综合评价法在同里古镇水质评价中的应用[J].河海大学学报(自然科学版),2014,42(2):143-149.
[6]吴京,王启山,张旋,等.改进的灰色关联度方法在天津引滦输水沿线水质评价中的作用[J].水资源与水工程学报,2010,21(1):71-74.
[7]林青,由文辉,徐凤洁,等.滴水湖浮游动物群落结构及其与环境因子的关系[J].生态学报,2014,34(23):6918-6929.
[8]汪天祥,许士国,韩成伟.改进主成分分析法在南淝河水质评价中的应用[J].水电能源科学,2012,30(10):33-36.
[9]周宇哲,高茂庭.水质评价中模糊-集对分析法的改进[J].环境工程学报,2015,9(2):749-755.
[10]张俊华,杨耀红,陈南祥.模糊物元模型在地下水水质评价中的应用[J].长江科学院院报,2010,27(9):10-13.
[11]赵克勤.集对分析与熵的研究[J].浙江大学学报(人文社会科学版),1992,6(2):68-75.
[12]孟宪萌,胡和平.基于熵权的集对分析模型在水质综合评价中的应用[J].水利学报,2009,40(3):257-262.
[13]周荣喜,单欣涛,杨杰,等.基于熵权的区间型多属性决策方法在湖泊水质评价中的应用[J].环境科学学报,2013,33(3):910-917.
[14]寇文杰,林健,陈忠荣,等.内梅罗指数法在水质评价中存在问题及修正[J].南水北调与水利科技,2012,10(4):39-41,47.