平顶山市白鹭洲城市湿地公园土壤重金属元素特征及评价  

Characteristics and evaluation of heavy metal elements in soil of Bailuzhou Urban Wetland Park,Pingdingshan City

作　　者：张恒博 史冲 徐川川 豆靖林 朱文杰 宋赟 刘冬 王永 ZHANG Hengbo;Shi Chong;XU Chuanchuan;DOU Jinglin;ZHU Wenjie;SONG Yun;LIU Dong;WANG Yong(The first geological Group of Henan Bureau of Nonferrous Metal Geology and Mineral Resources,Zhengzhou 450000,Henan,China)

机构地区：[1]河南省有色金属地质矿产局第一地质大队,河南郑州450000

出　　处：《矿产勘查》2021年第12期2431-2439,共9页Mineral Exploration

基　　金：河南省自然资源厅“河南省废弃矿山与矿山废弃物调查评价及综合利用技术研究”(豫自然资函[2019]373-5号)项目资助。

摘　　要：以平顶山市白鹭洲城市湿地公园表层土壤中重金属元素为研究对象,通过统计分析、空间插值分析、指数评价和聚类分析等手段,研究并评价了研究区土壤重金属元素特征。结果显示,研究区土壤中Cr、Co、Ni、Cu、Hg、Cd、Pb、As等元素含量均低于《土壤环境质量建设用地土壤污染风险管控标准(试行)》中第一类用地筛选值,但区域分布差异性较大。综合研究认为,局部地区个别重金属元素表现为中度污染,这些元素主要为Cd和Hg等,且毒性强度大。Hg和Cd元素同为亲硫元素,二者呈正相关,且含量和空间分布均具有相似性,可能属于同一物源。本研究结果为研究区及类似矿山生态重建和废弃地治理提供依据和参考。Taking the heavy metal elements in the surface soil of Bailuzhou Urban Wetland Park in Pingdingshan City as the research object,the characteristics of heavy metal elements in the soil of the study area were studied and evaluated by means of statistical analysis,spatial interpolation distribution analysis,index evaluation and cluster analysis.The results showed that the contents of Cr,Co,Ni,Cu,Hg,Cd,Pb,as and other elements in the soil of the study area were lower than the screening value of the first type of land in “soil environmental quality construction land soil pollution risk control standard(Trial)”,but the regional distribution difference was large.The index evaluation method showed that some heavy metal elements in some areas were moderately polluted,and these elements were mainly Cd and Hg,with high toxicity.Hg and Cd are both chalcophilic elements,and they are positively correlated,and their contents and spatial distribution are similar,so they may belong to the same source.It can provide a reference for the study and ecological reconstruction of similar mine wasteland.

关 键 词：土壤污染 重金属元素 煤矿塌陷地 空间插值 指数分析法 

分 类 号：X53[环境科学与工程—环境工程]