水质评价的灰色关联分析方法研究  

Study on grey relational analysis method for water quality assessment

作　　者：章新[1] 贺石磊[1] 张雍照[1] 陈思[1] 高军省[1] 

机构地区：[1]长江大学地球化学系,湖北荆州434023

出　　处：《水资源与水工程学报》2010年第5期117-119,共3页Journal of Water Resources and Water Engineering

基　　金：长江大学国家大学生创新性实验计划项目(0938);长江大学科研发展基金项目(CJ2009-06)

摘　　要：为了比较不同的原始数据处理方法、不同的点到区间距离的计算方式对水质灰色关联评价结果的影响情况,通过极差变换、均值化、标准化方法来进行原始数据处理,并分别采用点到区间下端点、点到区间中点及传统的点到区间距离的方式计算点到区间的距离,进而计算关联度。实例水质评价结果表明,不同的数据处理方法对水质评价的结果影响较小,而不同的距离计算方式对水质评价的结果影响较大。结合水质评价的目的,给出了灰色关联分析方法用于水质评价的建议。To compare different original data processing methods,different calculation formula of distance from the point to the interval influence on water quality assessment by grey relational analysis,transform of extreme difference,equalization and standardization were used respectively to deal with original data,and the methods of from point to lower extreme point,midpoint of the interval,and traditional from point to the interval were adopted to calculate the distance from the point to the interval.Then the grey relational degree was calculated.The evaluated results of application example show that data processing method to water quality assessment is less affected,and distance calculation method to water quality assessment is more affected.According to the water quality evaluation purposes,the paper put forward the suggestion using the grey relational analysis method to carry out water quality assessment.

关 键 词：水质评价 灰色关联分析 极差变换 均值化 标准化 

分 类 号：X824[环境科学与工程—环境工程]