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现代地质 ›› 2008, Vol. 22 ›› Issue (6): 1034-1040.

• 方法研究与成果应用 • 上一篇    下一篇

磁化率对土壤重金属污染的指示性研究——以沈阳新城子区为例

余涛1,2，杨忠芳1，岑静3，杨志斌4，黄勇1，杨晓波5   

  1. 1中国地质大学 地球科学与资源学院，北京 100083；2中国地质大学 地质调查研究院，北京 100083；3浙江省地质调查院，浙江 杭州 311203；4中国地质科学院 物化探研究所，河北 廊坊 065000；5辽宁省地质矿产调查院，辽宁 沈阳 110032

  • 收稿日期:2008-05-10 修回日期:2008-09-10 出版日期:2008-12-26 发布日期:2008-12-26
  • 作者简介:余涛，男，研究实习员，博士研究生，1979年出生，环境地球化学专业，主要从事环境地球化学和土地质量地球化学评估等科研工作。Email：yutao@cugb.edu.cn。
  • 基金资助:

    中国地质调查局地质大调查项目(2004142000004）；全国土壤现状调查及污染防治专项(GZTR20060301)

The Study of Magnetic Susceptibility as the Indication of Contaminated Soil with Heavy Metals：the Case of Xinchengzi District in Shenyang

YU Tao 1,2,YANG Zhong-fang1,CEN Jing3, YANG Zhi-bing4，HUANG Yong1,YANG Xiao-bo5   

  1. 1School of Earth Sciences and Resources, China University of Geosciences, Beijing100083, China; 2Institute of Geological Survey,China University of Geosciences, Beijing100083, China; 3Zhejiang Institute of Geological Survey, Hangzhou，Zhejiang311203, China; 4Institute of Geophysical & Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang,Hebei065000, China; 5Liaoning Institute of Geological Survey, Shenyang,Liaoning110032, China
  • Received:2008-05-10 Revised:2008-09-10 Online:2008-12-26 Published:2008-12-26

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摘要：

      通过对399件表层土壤磁化率参数与化学组成的分析测试,较系统地总结了沈阳新城子区土壤磁化率特征，并初步进行了磁化率对土壤重金属污染的指示研究。结果表明:(1）不同土壤类型中磁化率差异较大，棕壤中由于人为作用较大，其均值最高。不同堆积类型中磁化率差别较大，洪积物和残坡积物中平均值最高，冲积物中最低。不同农作物对元素的需求不一样导致磁化率的含量变化范围存在着区别。(2）土壤的磁化率与土壤中Cd、Pb、Hg、Cu、Zn等重金属元素含量呈显著正相关，且与土壤pH值呈显著负相关关系，能反映出土壤酸化的状况，对土壤污染程度有较好的指示性。(3）利用磁化率可以快捷地划分污染区。

关键词: 磁化率, 土壤, 重金属元素, 沈阳

Abstract:

      Based on the analysis results of magnetic susceptibility and chemical analysis of 399 topsoil samples, the typical characteristics of the soil magnetic susceptibility of Xinchengzi District in Shenyang have been summarized systematically, and the indication of soil heavy metal pollution by magnetic susceptibility has been studied. The results show that :(1)Magnetic susceptibility is diverse among various soil types，and the mean of brown soil is high because of human influence. Magnetic susceptibility of different accumulation is various.disparate demands of crops for elements result in the difference of magnetic susceptibility.(2)Soil magnetic susceptibility has distinct positive correlation with such heavy metal elements as cadmium，lead，mercury，copper and zinc. It also has negative correlation with pH of soil that can reflect soil acidification situation. So magnetic susceptibility may be used as better indicators for soil pollution.(3)Polluted zone is plotted out conveniently and rapidly via magnetic susceptibility.

Key words: magnetic susceptibility, soil, heavy metal elements, Shenyang

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