灰色关联和层次分析法在地下水质评价中的应用——以吉林市为例  

Application of Method Combining Grey Relation with Analytic Hierarchy Process for Groundwater Quality Evaluation in Jilin City

作　　者：刘博[1] 肖长来[1] 田浩然[1] 邱淑伟[1] 

机构地区：[1]吉林大学环境与资源学院,吉林长春130022

出　　处：《节水灌溉》2013年第1期26-29,共4页Water Saving Irrigation

基　　金：国家"十一五"科技支撑项目(2007BAB28B04-03;2006BAB04A09-02;2006BAJ08B09);吉林省科技攻关项目(20080543;20100452);高等学校博士点基金项目(200801830044);教育部潜在油气资源项目(20100331-OSR01-7);水利部公益性项目(200901037)

摘　　要：地下水质评价是一个涉及多因素、多层次结构的非线性系统,可运用层次分析和灰色关联分析法对其水质状况进行分析。首先采用层次分析法得出评价指标权重,再运用灰色关联分析得出参评数据序列与标准数据序列之间的关联度,其中关联度最大值所对应的水质等级,即为该地区地下水水质的等级。通过对吉林市G022水井2002-2004年的地下水水质进行分析,结合层次分析法、灰色关联法和MATLAB编程,对吉林市地下水的硝酸盐、亚硝酸盐、总硬度、铁、锰等7个指标进行了评价,评价结果表明:在2002-2004年,该处地下水质由Ⅱ类水逐渐变为Ⅳ类水。水质呈现了恶化趋势。Groundwater quality evaluation is a nonlinear system with multiple factors and multi-layer structure,for which the hierarchical analysis and gray correlation analysis method can be used.At first,the evaluation index weight can be achieved by the analytic hierarchy process;then the correlation between the eligible data sequence and standard data sequence can be gained from the grey correlation analysis,and the water quality degree with the largest correlation degree is exactly the groundwater quality level of this region.Through the analysis of groundwater quality of G022 Well in Jilin City in 2002-2004 and combining with the analytic hierarchy process（ahp）,grey correlation method and MATLAB,the nitrate,nitrite,total hardness,iron,manganese,sulfate radical and fluorin of groundwater are evaluated.The results show that from 2002 to 2004,the grade of groundwater from G022 has gradually been going bad and fell from Ⅱ to Ⅳ.

关 键 词：灰色关联法 层次分析法 地下水质 吉林市 

分 类 号：P641.72[天文地球—地质矿产勘探]