土壤重金属污染现状调查与评价:以贵州惠水涟江高效农业园区为例  

Investigation and evaluation of soil heavy metal pollution: a case study of Lianjiang high-efficiency agricultural park in Huishui, Guizhou Province

作　　者：息朝庄 吴林锋 张鹏飞 杨茗钛 范云飞 黄丹艳 XI Chaozhuang;WU Linfeng;ZHANG Pengfei;YANG Mingtai;FAN Yunfei;HUANG Danyan(School of Civil Engineering,Hunan City University,Yiyang,Hunan 413000,China;Nuclear Resources Geological Survey,Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang,Guizhou 550005,China)

机构地区：[1]湖南城市学院土木工程学院,湖南益阳413000 [2]贵州省有色金属和核工业地质勘查局核资源地质调查院,贵阳550005

出　　处：《湖南城市学院学报（自然科学版）》2022年第4期51-56,共6页Journal of Hunan City University:Natural Science

基　　金：教育部产学合作协同育人项目(20210102202);湖南省教育厅科研项目(20C0381);贵州省耕地质量地球化学调查评价(黔耕调2017-03);益阳市哲学社会科学项目(2021YS133);湖南城市学院教学改革项目。

摘　　要：通过系统取样和分析测试对贵州惠水涟江高效农业园区土壤重金属污染现状进行了科学调查与研究,并采用单因子污染指数、内梅罗污染指数、富集因子法和潜在生态污染指数法对其土壤重金属污染现状、元素富集程度及潜在生态风险进行了综合评价。结果表明:222个样品的pH值<7.0,占比66%,这表明该园区以酸性土为主;从综合评价结果来看,园区土壤的重金属污染程度轻微,元素富集程度不高,对环境的生态污染程度轻微;园区内的重金属(Cd和Hg)污染,其来源可能受地质背景、工业三废、燃煤、长期施肥等综合影响。This paper conducted a scientific analysis and evaluation on current situation of soil heavy metal pollution with systematic sampling and analytical testing, and adopted single factor pollution index,Nemerow pollution index, enrichment factor method and potential ecological pollution index method to evaluate the status of soil heavy metal pollution, element enrichment degree and potential ecological risk in Lianjiang high-efficiency agricultural park. The results show that the pH value of the 222 samples is less than 7.0, accounting for 66%, which indicates that the park is dominated by acidic soil. The comprehensive evaluation results show that the heavy metal pollution degree is slight, and the element enrichment degree is not high, and the ecological pollution degree to the environment is slight. The pollution sources of heavy metal elements such as Cd and Hg in the park may be influenced by geological background, industrial waste,coal burning and long-term fertilization and so on.

关 键 词：土壤 重金属 污染 涟江 惠水 

分 类 号：X53[环境科学与工程—环境工程]