土壤重金属污染灰色聚类法评价  

Pollution Assessment of Heavy Metals with G ray Cluster Method

作　　者：袁媛[1] 马建华[1] 

机构地区：[1]河南大学资源与环境研究所,河南开封475004

出　　处：《洛阳理工学院学报（自然科学版）》2009年第2期9-12,共4页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：河南省重点科技攻关项目(72102150029)。

摘　　要：根据灰色系统基本原理和聚类分析法,用灰色聚类分析对陇海铁路郑州-圃田段断面土壤重金属进行综合评价。此法先确定灰类白化函数,引入修正系数修正,避免分级标准值的误判。同时对污染物实测值进行合理权重处理。灰色聚类结果表明:得出重金属污染综合评价结果与实际污染状况基本一致,说明运用灰色聚类法是一种适用于土壤污染综合评价的科学方法。Based on the basic principles of grey system and cluster mathematical analysis model, the method of fuzzy cluster analysis is proposed to make the comprehensive evaluation of heavy metal pollution in the soil of Zhengzhou--Putian Section of Lonhai Railway. Whitened function is defined and correction coefficient is introduced in order to avoid misjudging the criterion data, and the proper weight is made on the actually measured data of pollution at the same time. The result of this method shows that the comprehensive assessment of the heavy metal pollution is in accordance with the practical situation, which proves the method feasible.

关 键 词：铁路旁土壤 陇海铁路 重金属污染 灰色系统 模糊聚类 

分 类 号：X825[环境科学与工程—环境工程]