河北省农业面源重(类)金属来源及防控对策  

Sources,Prevention and Control Measures of Heavy Metal(loid)s in Agricultural Nonpoint Source in Hebei Province,China

作　　者：宋泽峰 蔡奎 樊超 王丰翔 栾卓然 SONG Ze-feng;CAI-Kui;FAN-Chao;WANG Feng-xiang;LUAN Zhuo-ran(Hebei GEO University,Shijiazhuang 050031,China;Party School of CPC Hebei Provincial Committee(Hebei College of Administration),Shijiazhuang 050064,China)

机构地区：[1]河北地质大学,河北石家庄050031 [2]河北省委党校(河北行政学院),河北石家庄050031

出　　处：《河北地质大学学报》2020年第3期38-44,共7页Journal of Hebei Geo University

基　　金：河北社会科学发展研究课题(201803020211)。

摘　　要：论文通过采集河北平原农业表层土壤样品,分析了重金属Cu、Zn、Cr、Cd、Ni、Pb、Hg及类金属As的含量。首先运用ArcGis预测了重(类)金属的空间分布图,然后通过地累积指数法(Igeo)对研究区农业土壤进行了污染程度评价,最后利用相关性分析和主成分分析法对重金属污染物来源进行了解析。研究结果表明,除Ni、Cr、As外,Cu、Zn、Cd、Pb、Hg重金属大于当地土壤背景值,尤其是Cd、Hg的大部分样品地累积指数大于1,受到了不同程度的污染。空间分布图显示,Cu、Zn、Cd、Pb和Hg重金属分布范围广,尤其是Hg元素。相关性分析和主成分分析表明,重(类)金属主要来自于施肥、燃煤、汽车尾气等多方面污染。通过上述结论,论文提出了防止重(类)金属污染的相关的管控措施。In this study,Surface soil samples collected from 287 sites in Hebei plain area were analyzed for heavy metal(loid)s Cu,Zn,Cr,Cd,Ni,Pb,Hg and As to evaluate their pollution level and source.Firstly,the spatial distribution of heavy metal(loid)s were carried out by ArcGIS,then the pollution level of agricultural soil in the study area was evaluated by geo-accumulation index(Igeo),and finally,the sources of heavy metal pollutants were determined by correlation analysis and principal component analysis(PCA).The results showed that Cu,Zn,Cd,Pb,Hg heavy metal(loid)s were greater than the local soil background value,except for Ni,Cr,As.especially the Igeo of most samples of Cd and Hg were greater than 1,indicated that moderate-strong pollution level.The spatial distribution showed that Cu,Zn,Cd,Pb,and Hg have a wide distribution range of heavy metal(loid)s,especially Hg.Correlation analysis and PCA showed that heavy metal(loid)s mainly come from fertilization,coal burning,automobile exhaust.Based on the above conclusions,the article suggested relevant control measures to prevent heavy metal contamination.

关 键 词：农业土壤 重金属 地积累指数 主成分分析 管理措施 

分 类 号：X53[环境科学与工程—环境工程]