| 不同级别城镇土壤重金属含量与潜在生态风险比较——以郑州市、中牟县和韩寺镇为例 |
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| 引用本文： | 楚纯洁,马建华,朱玉涛.不同级别城镇土壤重金属含量与潜在生态风险比较——以郑州市、中牟县和韩寺镇为例[J].土壤通报,2010(2). |
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| 作者姓名： | 楚纯洁 马建华 朱玉涛 |
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| 作者单位： | 平顶山学院环境与地理科学系;河南大学资源与环境研究所;江苏省镇江市海事局; |
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| 基金项目： | 河南省重点科技攻关项目(0721021500)资助 |
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| 摘 要： | 以郑州市、中牟县和韩寺镇为例,在野外调查取样、室内测定的基础上,比较分析了Pb、Cd、Zn、Cr、Cu、Ni6种重金属元素在不同级别城镇土壤中的分布特征与潜在生态风险。结果表明:(1)不同重金属在各级别城镇土壤中的分布特征不尽相同。土壤Pb、Cd的分布趋势基本一致,而且含量普遍超过一级环境标准值,具有工业化、城镇化水平越高土壤污染越重、人为扰动越大的特点;土壤Zn、Cr含量在各区域的分布差异显著,体现了人为活动方式与活动强度的复杂性;不同级别的城镇土壤基本上不存在Cu和Ni的富集,两者含量的变化主要受自然波动的影响。(2)各级别城镇土壤存在着不同程度的重金属潜在生态风险,其中Cd的潜在生态风险最大,构成了很强的潜在生态危害,而Pb、Zn、Cr和Cu等元素仅具有轻微生态危害。(3)多种重金属的潜在生态风险大小为:郑州市区韩寺镇区中牟县城对照区。
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| 关 键 词： | 城镇土壤 重金属 潜在生态风险 郑州市 中牟县 韩寺镇 |
Comparison between Heavy Metal Contents in Urban Soils and Their Potential Ecological Hazards in City and Town:a Case Study of Zhengzhou,Zhongmu and Hansi,Henan,China |
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| CHU Chun-jie ,MA Jian-hua ,ZHU Yu-tao.Comparison between Heavy Metal Contents in Urban Soils and Their Potential Ecological Hazards in City and Town:a Case Study of Zhengzhou,Zhongmu and Hansi,Henan,China[J].Chinese Journal of Soil Science,2010(2). |
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| Authors: | CHU Chun-jie MA Jian-hua ZHU Yu-tao |
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| Institution: | CHU Chun-jie 1,MA Jian-hua 2,ZHU Yu-tao 3(1.Department of Environment , Geography,Pingdingshan University,Pingdingshan 467000,China,2.Institute of Natural Resources , Environment science,Henan University,Kaifeng 475004,3.Maritime Bureau of Zhenjiang,Jiangsu Province,Zhenjiang 212000,China) |
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| Abstract: | With the example of Zhengzhou city,Zhongmu county and Hansi town,the concentration of Pb,Cd,Cu,Zn,Cr and Ni was analyzed through field investigation and indoor determination.Then the author compared the distribution properties and potential ecological hazards of those analyzed heavy metals in different ranking urban soils.The results show as follows.The distribution properties of different heavy metal elements are also different with each other in different ranking urban soils.In detail,the general distribu... |
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| Keywords: | Urban soils Heavy metals Potential Ecological Hazard Zhengzhou city Zhongmu county Hansi town |
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