The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China

doi:10.1007/s11356-015-5303-z

	The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China
	Wu, Jiansheng 1,2; Song, Jing 3; Li, Weifeng 3; Zheng, Maokun4 ; Song, J (reprint author), Univ Hong Kong, Fac Architecture, Dept Urban Planning & Design, Hong Kong, Hong Kong, Peoples R China. songjing@hku.hk
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
	2016
卷号	23 期号:2 页码:1428-1440
关键词	Soil Heavy Metals Agricultural Topsoil Potential Ecological Risk Principal Component Analysis Pollution Sources Shenzhen China
DOI	10.1007/s11356-015-5303-z
产权排序	[Wu, Jiansheng] Peking Univ, Key Lab Urban Habitat Environm Sci & Technol, Sch Urban Planning & Design, Shenzhen Grad Sch, Shenzhen 518055, Guangdong, Peoples R China; [Wu, Jiansheng] Peking Univ, Lab Earth Surface Proc, Minist Educ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; [Song, Jing; Li, Weifeng] Univ Hong Kong, Fac Architecture, Dept Urban Planning & Design, Hong Kong, Hong Kong, Peoples R China; [Zheng, Maokun] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
作者部门	中科院烟台海岸带研究所知识产出
英文摘要	Accumulation of heavy metals in agricultural land and their ecological risks are key issues in soil security studies. This study investigated the concentrations of six heavy metals-copper (Cu), zinc (Zn), lead (Pb), nickel (Ni), and chromium (Cr) in Shenzhen's agricultural lands and examined the potential hazards and possible sources of these metals. Eighty-two samples from agricultural topsoil were collected. Potential ecological risk index was used to calculate the potential risk of heavy metals. Principal component analysis (PCA) was applied to explore pollution sources of the metals. Finally, Kriging was used to predict the spatial distribution of the metals' potential ecological risks. The concentrations of the heavy metals were higher than their background values. Most of them presented little potential ecological risk, except for the heavy metal cadmium (Cd). Four districts (Longgang, Longhua, Pingshan, and Dapeng) exhibited some degree of potential risk, which tended to have more industries and road networks. Three major sources of heavy metals included geochemical processes, industrial pollutants, and traffic pollution. The heavy metal Cd was the main contributor to the pollution in agricultural land during the study period. It also poses the potential hazard for the future. High potential risk is closely related to industrial pollution and transportation. Since the 1980s, the sources of heavy metals have evolved from parent rock weathering, erosion, degradation of organics, and mineralization to human disturbances resulting in chemical changes in the soil.
文章类型	Article
资助机构	National Natural Science Foundation of China(41271101)
收录类别	SCI
语种	英语
关键词[WOS]	SPATIAL-DISTRIBUTION ; SOILS ; POLLUTION ; SEDIMENTS ; URBAN ; INDEX ; GEOSTATISTICS ; TOPSOILS ; SAMPLES ; CROPS
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000368200200048
引用统计	被引频次：32[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/133337/9293
专题	中国科学院烟台海岸带研究所知识产出
通讯作者	Song, J (reprint author), Univ Hong Kong, Fac Architecture, Dept Urban Planning & Design, Hong Kong, Hong Kong, Peoples R China. songjing@hku.hk
作者单位	1.Peking Univ, Key Lab Urban Habitat Environm Sci & Technol, Sch Urban Planning & Design, Shenzhen Grad Sch, Shenzhen 518055, Guangdong, Peoples R China 2.Peking Univ, Lab Earth Surface Proc, Minist Educ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 3.Univ Hong Kong, Fac Architecture, Dept Urban Planning & Design, Hong Kong, Hong Kong, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jiansheng,Song, Jing,Li, Weifeng,et al. The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(2):1428-1440.
APA	Wu, Jiansheng,Song, Jing,Li, Weifeng,Zheng, Maokun,&Song, J .(2016).The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(2),1428-1440.
MLA	Wu, Jiansheng,et al."The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.2(2016):1428-1440.

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