西北林学院学报2024，Vol.39Issue(4)：209-214,6.DOI:10.3969/j.issn.1001-7461.2024.04.25
秦岭柞水县下梁镇金属矿区土壤重金属富集污染研究
A Study on Heavy Metal Accumulation and Pollution in Soils of Xialiangzhen Metal Mining Area
摘要
Abstract
In order to explore the impact of mineral resources development on the accumulation of heavy metals in soils,the Daxigou iron mine area and surrounding areas in Zhashui County were taken as the re-search objects.The contents of heavy metals,including Cr,Ni,Cu,Zn,Pb,As,Hg and Cd in the soils of the study areas were measured by using the relevant national standards and methods.The environmental quali-ty of the soils and pollution status in core area,buffer area,transition area and control area were evaluated by single factor index method and Nemerow comprehensive pollution index method.The results showed that in the core area,except for Cr,Cu and As,the other heavy metals did not exceed the standard values.The order of single factor pollution index was PCu＞PAs＞PCr＞PCd＞PZn＞PPb＞PHg.In buffer area,except for As and Cu that exceeded relative standard,the other heavy metals did not exceed the standard,and the order of single factor pollution index was PCu＞PAs＞PCr＞PCd＞PZn＞PHg＞PPb.In the transition area,except for Cu,the other heavy metals did not exceed the standard values,the order of single factor pollution index was PCu＞PAs＞PCr＞PCd＞PHg＞PZn＞PPb.In the control area,all the heavy metals did not exceed the standard,the order of single factor pollution index was PCr＞PCu＞PAs＞PPb＞PZn＞PCd＞PHg.The potential ecological risk assessment showed that the potential ecological risk of heavy metal pol-lution in the soils of Zhashui mining area was slight,monitoring should be strengthened in the future to guard against further soil contamination resulting in potential ecological risks of medium to high levels.关键词
重金属污染/土壤污染/生态风险Key words
heavy metal pollution/soil pollution/ecological risk分类
农业科技引用本文复制引用
窦延光,张鸿超,张晓元,杨欢欢,张小龙..秦岭柞水县下梁镇金属矿区土壤重金属富集污染研究[J].西北林学院学报,2024,39(4):209-214,6.基金项目
国家林业和草原局项目"矿产资源开发对食用林产品及其产地环境影响的研究"(LC-6-09). （LC-6-09）
