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	Heavy metal concentrations and their possible sources in paddy soils of a modern agricultural zone, southeastern China
	Wu, Chunfa1,2; Zhang, Limin3
发表期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
	2010-03-01
卷号	60期号:1页码:45-56
关键词	Paddy Field Heavy Metals Spatial Distribution Source Analysis
产权排序	[Wu, Chunfa] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China; [Wu, Chunfa] Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China; [Zhang, Limin] Agr Extens Serv, Haining 314400, Peoples R China
通讯作者	Wu, CF, Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, 71 E Beijing Rd, Nanjing 210008, Peoples R China
作者部门	滨海湿地实验室
英文摘要	In a typical modern agricultural Zone of southeastern China, Haining City, 224 topsoil samples were collected from paddy fields to measure the total concentrations of copper (Cu), lead (Pb), zinc (Zn), cadmium (Cd), chromium (Cr), mercury (Hg), arsenic (As) and cobalt (Co). The total concentrations ranged from 15.30 to 78.40 mg kg(-1) for Cu, 20.10 to 41.40 mg kg(-1) for Pb, 54.98 to 224.4 mg kg(-1) for Zn, 0.04 to 0.24 mg kg(-1) for Cd, 54.90 to 197.1 mg kg(-1) for Cr, 0.03 to 0.61 mg kg(-1) for Hg, 3.44 to 15.28 mg kg(-1) for As, and 7.17 to 19.00 mg kg(-1) for Co. Chemometric techniques and geostatistics were utilized to quantify their spatial characteristics and define their possible sources. All eight metals had a moderate spatial dependency except that Pb had a strong spatial dependency. Both factor analysis and cluster analysis successfully classified the eight metals into three groups or subgroups, the first group included Cu, Zn and Cr, the second group included Cd, As and Co, and the last group included Pb and Hg. The Cu, Zn and Cr concentrations in majority samples were higher than their local background concentrations and they were highly correlated (r > 0.80), indicating that they had similar pollution source and anthropic factor controlled their spatial distribution; the Cd, As and Co concentrations in majority samples were lower than their local background concentrations, indicating that the source of these elements was mainly controlled by natural factors; the mean concentration of Pb exhibited generally low level, close to its local background concentration, the Hg concentration in about half of samples was higher than its local background concentration, and they were poor correlated with the other metals, indicating that the source of Pb and Hg was common controlled by natural factor and anthropic factor.; In a typical modern agricultural Zone of southeastern China, Haining City, 224 topsoil samples were collected from paddy fields to measure the total concentrations of copper (Cu), lead (Pb), zinc (Zn), cadmium (Cd), chromium (Cr), mercury (Hg), arsenic (As) and cobalt (Co). The total concentrations ranged from 15.30 to 78.40 mg kg(-1) for Cu, 20.10 to 41.40 mg kg(-1) for Pb, 54.98 to 224.4 mg kg(-1) for Zn, 0.04 to 0.24 mg kg(-1) for Cd, 54.90 to 197.1 mg kg(-1) for Cr, 0.03 to 0.61 mg kg(-1) for Hg, 3.44 to 15.28 mg kg(-1) for As, and 7.17 to 19.00 mg kg(-1) for Co. Chemometric techniques and geostatistics were utilized to quantify their spatial characteristics and define their possible sources. All eight metals had a moderate spatial dependency except that Pb had a strong spatial dependency. Both factor analysis and cluster analysis successfully classified the eight metals into three groups or subgroups, the first group included Cu, Zn and Cr, the second group included Cd, As and Co, and the last group included Pb and Hg. The Cu, Zn and Cr concentrations in majority samples were higher than their local background concentrations and they were highly correlated (r > 0.80), indicating that they had similar pollution source and anthropic factor controlled their spatial distribution; the Cd, As and Co concentrations in majority samples were lower than their local background concentrations, indicating that the source of these elements was mainly controlled by natural factors; the mean concentration of Pb exhibited generally low level, close to its local background concentration, the Hg concentration in about half of samples was higher than its local background concentration, and they were poor correlated with the other metals, indicating that the source of Pb and Hg was common controlled by natural factor and anthropic factor.
文章类型	Article
资助机构	National Basic Research Priorities Program (973 Program) [2002CB410810]
收录类别	SCI
语种	英语
关键词[WOS]	MULTIVARIATE STATISTICAL-METHODS ; TRACE-ELEMENT SOURCES ; GIS-BASED APPROACH ; URBAN SOILS ; WASTE-WATER ; POLLUTION ; AREA ; CONTAMINATION ; VARIABILITY ; MINE
研究领域[WOS]	Environmental Sciences & Ecology ; Geology ; Water Resources
WOS记录号	WOS:000274385200005
引用统计	被引频次：39[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/3691
专题	中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China 3.Agr Extens Serv, Haining 314400, Peoples R China
推荐引用方式 GB/T 7714	Wu, Chunfa,Zhang, Limin. Heavy metal concentrations and their possible sources in paddy soils of a modern agricultural zone, southeastern China[J]. ENVIRONMENTAL EARTH SCIENCES,2010,60(1):45-56.
APA	Wu, Chunfa,&Zhang, Limin.(2010).Heavy metal concentrations and their possible sources in paddy soils of a modern agricultural zone, southeastern China.ENVIRONMENTAL EARTH SCIENCES,60(1),45-56.
MLA	Wu, Chunfa,et al."Heavy metal concentrations and their possible sources in paddy soils of a modern agricultural zone, southeastern China".ENVIRONMENTAL EARTH SCIENCES 60.1(2010):45-56.

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