西安市二环内表层土壤重金属空间分布特征

doi:10.11821/xb201109013

地理学报 ›› 2011, Vol. 66 ›› Issue (9): 1281-1288.doi: 10.11821/xb201109013

西安市二环内表层土壤重金属空间分布特征

陈秀端^1,2, 卢新卫¹, 赵彩凤¹, 罗大成¹

1. 陕西师范大学旅游与环境学院,西安 710062;
2. 陕西教育学院环境与资源管理系,西安 710061

收稿日期:2011-05-20 修回日期:2011-06-20 出版日期:2011-09-20 发布日期:2011-09-20
通讯作者: 卢新卫(1968-), 男, 博士, 教授, 博士生导师, 中国地理学会会员(S110000885M), 现从事环境污染修复、环境评价与治理研究。E-mail: luxinwei@snnu.edu.cn
作者简介:陈秀端(1980-), 女, 博士研究生, 主要从事区域环境安全研究。E-mail: x_mary60@126.com
基金资助:
中央高校基本科研业务费专项资助(2010ZYGX014; GK200901008); 教育部新世纪优秀人才支持计划项目(NCET-05-0861)

The Spatial Distribution of Heavy Metals in the Urban Topsoil Collected from the Interior Area of the Second Ring Road, Xi'an

CHEN Xiuduan^1,2, LU Xinwei¹, ZHAO Caifeng¹, LUO Dacheng¹

1. School of Tourism and Environment, Shaanxi Normal University, Xi'an 710062, China;
2. Department of Environment and Resource Management, Shaanxi Institute of Education, Xi'an 710061, China

Received:2011-05-20 Revised:2011-06-20 Online:2011-09-20 Published:2011-09-20
Supported by:
Fundamental Research Funds for the Central Universities, No.2010ZYGX014; No. GK200901008; New Century Excellent Talents in University, No.NCET-05-0861

摘要/Abstract

摘要： 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。

关键词: 表层土壤, 重金属, 空间分布, 来源, 西安市

Abstract: 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.

Key words: topsoil, heavy metal, spatial distribution, source, Xi'an

陈秀端, 卢新卫, 赵彩凤, 罗大成. 西安市二环内表层土壤重金属空间分布特征[J]. 地理学报, 2011, 66(9): 1281-1288.

CHEN Xiuduan, LU Xinwei, ZHAO Caifeng, LUO Dacheng. The Spatial Distribution of Heavy Metals in the Urban Topsoil Collected from the Interior Area of the Second Ring Road, Xi'an[J]. Acta Geographica Sinica, 2011, 66(9): 1281-1288.

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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

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