武汉钢铁公司周边地区土壤和蔬菜重金属含量分析
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家“863”项目(2012AA101402)


Contents of heavy metals in soils and vegetables around Wuhan Iron and Steel Corporation
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    以武汉钢铁公司周边地区为研究区,对采集的23个土壤样品和8个蔬菜样本中重金属(Cu、Zn、Pb、Cr、Cd、Ni)含量及土壤性质进行测定分析,结果表明:4个采样区(S1、S2、S3和S4)土壤受Cd污染严重,单项污染指数分别为4.66、2.75、6.60、3.20;4个采样区Pb、Cr、Ni的几何均值都低于湖北省土壤元素背景值;土壤Cu、Zn略有积累;4个采样区的综合污染指数分别为3.37、2.01、4.77、2.32,达到了中污染或重污染程度;研究区的Cu、Zn、Pb两两之间及Ni与Cd之间具有显著或极显著的相关性;土壤Cu、Zn、Pb、Cr、Cd、Ni与土壤有机质及粘粒含量也存在相关性;以有机质和粘粒为控制变量,S4的阳离子交换量(cation exchange capacity,CEC)与Cu、Zn偏相关性显著;对样本进行Q型聚类分析:聚类Ⅰ主要包括S1与S4的部分样本,污染程度最低;聚类Ⅳ由S2部分样本组成,污染程度最高;聚类Ⅱ和Ⅲ包括S3及部分S4的样本,污染程度中等。

    Abstract:

    Twenty three soils and 8 vegetables around Wuhan Iron and Steel Corporation were collected and the contents of heavy metals Cu, Zn, Pb, Cr, Cd, Ni in these samples were investigated. Results showed that Cd content in all soils was higher than the background index of Hubei Province soil (BIHBS), indicating that there was serious soil Cd pollution. The average contents of Pb, Cr, Ni for all soils were below the BIHBS. Cu and Zn for most soils were medium or severe pollution. There were correlations between Cu, Zn, Pb, Cr, Cd, Ni contents and soil organic matter, and soil physical clay contents. When organic matter and physical clay contents were controlled, the cation exchange capacity and Cu, Zn contents showed significant partial correlation. Through Q type cluster analysis, soils from four sites were divided into 4 types based on the pollution degrees. Cluster I had the lowest pollution, which was consisted mainly with some samples from site 1 and site 4; Cluster IV had the severest pollution, which was consisted mainly with soils from site 2.

    参考文献
    相似文献
    引证文献
引用本文

万田英,霍庆,祁志福,曹艳丽,胡红青.武汉钢铁公司周边地区土壤和蔬菜重金属含量分析[J].华中农业大学学报,2014,33(04):77-83

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期:
  • 出版日期: