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	Heavy metal pollution of agricultural soils and sediments in Liaoning Province, China
	Yanai, J; Yabutani, M; Kang, YM; Huang, B; Luo, GB; Kosaki, T
刊名	SOIL SCIENCE AND PLANT NUTRITION
	1998-09-01
卷号	44期号:3页码:367-375
关键词	cadmium China heavy metal Liaoning Province soil pollution
ISSN号	0038-0768
通讯作者	Yanai, J()
英文摘要	Heavy metal pollution of soils and sediments in Liaoning Province, Northeast China, was investigated. Fifty seven samples of agricultural soils and 8 samples of sediments were collected in 1996 from paddy or upland fields and irrigation channels, respectively, in Shenyang, Fushun, Liaoyang, Anshan, and Tieling regions, and concentrations of total and 0.1 mol L-1 HCl-extractable Cd, Cu, Pb, and Zn mere analyzed using ICP spectrometry. Seventeen samples of unpolished rice were also collected from selected paddy fields and total concentrations of the four elements were determined. Both paddy and upland soils were polluted with Cd: average total concentration was 0.70, 0.57, and 0.53 mg kg(-1) in the western and southern parts of Shenyang, and Anshan, respectively, and significantly higher than the background level of 0.32 mg kg(-1). Cd concentrations of four samples exceeded even 1 mg kg(-1), which corresponds to the critical level of Cd contamination in China. About 65% of the total Cd was extracted with 0.1 mol L-1 HCl, suggesting that Cd was relatively mobile compared with other metals. The level of Cd pollution was, however, lower than that previously reported and serious pollution was not observed for Cu, Pb, and Zn. Accordingly, Cd concentration in upland rice was within the range of the unpolluted level in this study. Nevertheless, Cd concentration in a sediment of irrigation channels in the western part of Shenyang exceeded 16 mg kg(-1), indicating the possibility of further contamination of agricultural soils. In conclusion, soils and sediments were still polluted with Cd in the southern part of Shenyang, Anshan, and especially in the western part of Shenyang, and further countermeasures are urgently required to ensure safe food production in these regions.
收录类别	SCI
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
WOS类目	Plant Sciences ; Environmental Sciences ; Soil Science
语种	英语
出版者	JAPANESE SOC SOIL SCIENCE PLANT NUTRITION
WOS记录号	WOS:000076025100009
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559089
专题	南京土壤研究所
通讯作者	Yanai, J
作者单位	1.Kyoto Univ, Grad Sch Agr, Kyoto 6068502, Japan 2.Kochi Univ, Fac Agr, Nankoku, Kochi 7830093, Japan 3.Acad Sinica, Inst Soil Sci, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Yanai, J,Yabutani, M,Kang, YM,et al. Heavy metal pollution of agricultural soils and sediments in Liaoning Province, China[J]. SOIL SCIENCE AND PLANT NUTRITION,1998,44(3):367-375.
APA	Yanai, J,Yabutani, M,Kang, YM,Huang, B,Luo, GB,&Kosaki, T.(1998).Heavy metal pollution of agricultural soils and sediments in Liaoning Province, China.SOIL SCIENCE AND PLANT NUTRITION,44(3),367-375.
MLA	Yanai, J,et al."Heavy metal pollution of agricultural soils and sediments in Liaoning Province, China".SOIL SCIENCE AND PLANT NUTRITION 44.3(1998):367-375.

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