| 内蒙古托克托地区土壤重金属含量分析及模糊综合评价 |
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| 引用本文： | 祝艳,王喜宽,毛晓长,刘艳丽.内蒙古托克托地区土壤重金属含量分析及模糊综合评价[J].现代地质,2009,23(2):365-371. |
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| 作者姓名： | 祝艳 王喜宽 毛晓长 刘艳丽 |
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| 作者单位： | 1中国地质大学 土地科学技术学院,北京 100083；2中国地质大学 地球科学与资源学院,北京 100083； 3内蒙古自治区地质调查院，内蒙古 呼和浩特010020; 4中国地质调查局,北京 100037 |
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| 基金项目： | 内蒙古自治区人民政府与中国地质调查局合作项目 |
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| 摘 要： | 选取内蒙古河套平原东部的托克托地区作为研究对象，以1 564个表层土壤样品的测试数据为基础数据，基于GeoExpl多元地学数据空间数据管理与分析系统,对土壤中重金属元素(Cd、Hg、As、Cu、Pb、Cr、Zn、Ni)含量进行系统描述统计及空间分布分析，区内这几种重金属元素中Hg变异系数最大，Pb变异系数最小；8种重金属元素的高含量区主要集中在研究区西北部的农田和居民用地区。在此分析基础上，采用模糊综合评价法对土壤重金属污染等级进行评价，其评价结果为一级，即研究区内的表层土壤大部分暂未受重金属污染；但区内大黑河流域重金属含量较高，容易受重金属污染，结合其地表覆盖情况，推断此处土壤重金属元素的高含量与人类农田灌溉、化肥及农药的使用有关。
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| 关 键 词： | 土壤重金属 模糊综合评价 内蒙古托克托地区 |
| 收稿时间： | 2008-10-09 |
| 修稿时间： | 2009-02-26 |
Analysis and Fuzzy Comprehensive Assessment of Heavy Metal Contamination of Soil in Tuoketuo Area,Inner Mongolia |
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| ZHU Yan,WANG Xi-kuan,MAO Xiao-chang,LIU Yan-li.Analysis and Fuzzy Comprehensive Assessment of Heavy Metal Contamination of Soil in Tuoketuo Area,Inner Mongolia[J].Geoscience——Journal of Graduate School,China University of Geosciences,2009,23(2):365-371. |
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| Authors: | ZHU Yan WANG Xi-kuan MAO Xiao-chang LIU Yan-li |
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| Institution: | 1School of Land Science and Technology, China University of Geosciences, Beijing100083, China; 2School of Earth Sciences and Resources, China University of Geosciences, Beijing100083, China; 3Institute of Inner Mongolia Autonomous Region Geological Survey,Hohhot,Inner Mongolia010020,China; 4China Geological Survey, Beijing100037, China |
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| Abstract: | Hetao Plain is a typical kind of irrigated agriculture area in Inner Mongolia.This study focused on the Tuoketuo area located in the eastern part of Hetao Plain.Totally 1,564 samples of the surface soil were analyzed based on the GeoExpl system,and eight heavy metal elements including Cd,Hg,As,Cu,Pb,Cr,Zn and Ni in the top soil were analyzed.Among these heavy metal elements,the maximum of variable index is Hg and the minimum of it is Pb.The high concentration of these heavy metal elements has been found in the northwestern part of the study area.Based on these data,a fuzzy comprehensive assessment is carried out.The results can reasonably reflect the region's soil quality.The paper concludes that the soil in the Tuoketuo area is not contaminated by heavy metals while it is high in some area,especially along the Heihe River area.Irrigation and the improper usage of pesticides and chemical fertilizers containing heavy metals are considered to be the cause of the heavy metal contamination in the soil. |
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| Keywords: | heavy metal contamination fuzzy comprehensive assessment Tuoketuo area in Inner Mongolia |
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