西安市二环内表层土壤重金属空间分布特征
The Spatial Distribution of Heavy Metals in the Urban Topsoil Collected from the Interior Area of the Second Ring Road,Xi'an
查看参考文献27篇
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文摘
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采集西安市二环内78处表层土壤样品，研究西安二环内城市表层土壤中Co、Cr、Cu、Mn、 Ni、Pb、Zn、V的空间分布特征，并采用相关分析、因子分析和聚类分析等多元统计方法探究西安市二环内城市表层土壤中8种重金属元素的来源。结果表明，西安市二环内表层土壤中Co、Cr、 Cu、Pb、Zn具有明显的高值带和高值区，而Mn、Ni、V在西安市二环内表层土壤中均匀分布，空间差异不大。多元统计分析表明，西安市二环内表层土壤中Co、Cr、Cu、Pb、Zn的累积主要受交通、工业生产，以及废弃物堆放等人类活动影响；Mn、Ni、V的累积则主要受成土母质影响。 |
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其他语种文摘
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The concentrations of Co,Cr,Cu,Mn,Ni,Pb,Zn and V in 78 urban topsoil samples collected from inside the Second Ring Road in Xi'an were measured by X-ray fluorescence spectroscopy.The spatial variability of eight heavy metals was identified by geostatistical analysis with the aid of GIS tools.And correlation coefficient analysis,factor analysis and cluster analysis were used to analyze the data and to identify the possible sources of these heavy metals.The multivariate analytical results show that the spatial variability of Co,Cr,Cu,Pb and Zn was obvious.The higher concentrations of five heavy metals were found in some high-value bands and high-value areas,while Mn,Ni and V were evenly distributed in space.The source analytical results show that the accumulations of Co,Cr,Cu,Pb and Zn were mainly related with transport activities,industrial activities and consumption residues,while Mn,Ni and V originated mainly from soil parent material. |
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来源
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地理学报
,2011,66(9):1281-1288 【核心库】
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关键词
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表层土壤
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重金属
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空间分布
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来源
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西安市
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地址
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陕西师范大学旅游与环境学院, 西安, 710062
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0375-5444 |
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学科
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自然研究、自然历史 |
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基金
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中央高校基本科研业务费专项资金
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国家教育部新世纪优秀人才支持计划
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文献收藏号
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CSCD:4304632
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