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题名: Magnetic properties of urban soils from typical oasis cities and their environmental implications
其他题名: 典型沙漠绿洲城市表土磁性特征及环境指示意义
作者: Wang, B(王博); Xia, DS(夏敦胜); Yu, Y; Jia Jia(贾佳); Xu, SJ
收录类别: SCIE ; EI ; CSCD
出版日期: 2014-03
刊名: CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
卷号: 57, 期号:3, 页码:891-905
期刊主办单位: 中国地球物理学会 ; 中国科学院地质与地球物理研究所
出版者: SCIENCE CHINA PRESS
出版地: BEIJING
中文摘要: 选取典型沙漠绿洲城市(乌海、石嘴山、银川)表土为研究对象,对其环境磁学性质、土壤质地与重金属含量分布进行系统研究.结果表明,乌海市和石嘴山市表土为典型砂土,银川市为砂壤土.三个城市表土样品均以较粗的MD-PSD颗粒的亚铁磁性矿物(磁铁矿)为主导,磁化率均值分别为152×10-8、104×10-8和117×10-8 m3·kg-1.乌海市表土磁性矿物含量和磁性颗粒大小都显著高于石嘴山和银川市.重金属(Cr、Cu、Pb、Zn、Fe)的污染负荷指数(PLI)均显示,三个城市表土均存在轻度污染特征.同时磁化率和污染负荷指数在非工业区表现出点状高值分布,在工业区表现为面状高值分布特征.乌海市表土磁参数与...
英文摘要: This study is a systematic analysis on the environmental magnetic properties, soil texture and distribution of heavy metals content in topsoil sampled from typical oasis cities in desert like Wuhai, Shizuishan and Yinchuan. The results indicated that the topsoil in Wuhai and Shizuishan is typical sandy soil, while that in Yinchuan is sandy loam. Magnetic properties of topsoil samples are all predominated by ferrimagnetic magnetic mineral (magnetite) of coarse pseudo single domain (PSD)-multi domain (MD) particles with magnetic susceptibility of 152 X 10(-8), 104X10(-8), and 117x10(-8)m(3).kg(-1) respectively for the three cities. The magnetic mineral content and magnetic particles size in topsoil samples of Wuhai are significantly higher than that of Shizuishan and Yinchuan. Pollution Load Index (PLI) of heavy metals (Cr, Cu, Pb, Zn, Fe) showed that there is slight pollution in the three cities. Dotted distribution of high values of magnetic susceptibility and Pollution Load Index is shown in nonindustrial area, whilst planar distribution with high value is shown in industrial area. The correlation coefficient between magnetic parameters and heavy metals of topsoil in Wuhai is significantly higher than that in Shizuishan and Yinchuan, which suggests that magnetic parameters are more advantageous for evaluation on pollution degree in regions with single pollution source. There is an increase by the same degree in magnetic susceptibility in parallel with the increase of Pollution Load Index, despite of the significant difference of magnetic properties among three cities. Therefore, magnetic susceptibility can be used as the unified and effective substitute indicator to evaluate the pollution degree of heavy metals in topsoil of Ningxia plain.
关键词: Environmental magnetism ; Heavy metal ; Oasis town ; Pollution Load Index ; Magnetic susceptibility ; 环境磁学 ; 重金属 ; 绿洲城市 ; 污染负荷指数 ; 磁化率
作者部门: [Wang Bo ; Xia Dun-Sheng ; Jia Jia ; Xu Shu-Jing] Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Collaborat Innovat Ctr Arid Environm & Climat Cha, Lanzhou 730000, Peoples R China ; [Wang Bo ; Xia Dun-Sheng ; Yu Ye] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
通讯作者: Wang, B (reprint author), Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Collaborat Innovat Ctr Arid Environm & Climat Cha, Lanzhou 730000, Peoples R China.
学科分类: Geochemistry & Geophysics
文章类型: Article
所属项目编号: 国家自然科学基金(41071125和40871090) ; 中国科学院百人计划(O827631002,29O827631)资助
所属项目名称: 国家自然科学基金项目
项目资助者: NSFC
语种: 中文
DOI: 10.6038/cjg20140319
ISSN号: 0001-5733
WOS记录号: WOS:000333660800019
CSCD记录号: CSCD:5109915
EI记录号: 20141717623466
IR记录号: CNKI:0003859
第一机构:
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/120410
Appears in Collections:资源环境学院_期刊论文

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Recommended Citation:
Wang, B,Xia, DS,Yu, Y,et al. Magnetic properties of urban soils from typical oasis cities and their environmental implications[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(3):891-905.
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