Spatial distribution and controlling factors of heavy metals contents in paddy soil and crop grains of rice-wheat cropping system along highway in East China

doi:10.1007/s10653-012-9454-2

	Spatial distribution and controlling factors of heavy metals contents in paddy soil and crop grains of rice-wheat cropping system along highway in East China
	Feng, Jinfei 2; Zhao, Jian 2; Bian, Xinmin 2; Zhang, Weijian 1,2
刊名	ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
	2012
卷号	34 期号:5 页码:605-614
关键词	Spatial distribution Traffic Heavy metal Rice-wheat rotation Classification and regression trees (CART)
ISSN号	0269-4042
DOI	10.1007/s10653-012-9454-2
通讯作者	Feng, Jinfei
英文摘要	There is consensus concerning the heavy metal pollution from traffic emission on roadside agricultural land. However, few efforts have been paid on examining the contamination characteristics of heavy metals in roadside paddy-upland rotation field, and especially in combination with detailed quantitative analysis. In this study, we investigated the concentrations of heavy metals (Pb, Cd, Cr and Zn) in soil and crop grains of the rice-wheat cropping system along a major highway in East China in 2008 and analyzed the spatial distribution characteristics of heavy metals and their influencing factors with GIS and Classification and Regression Trees (CART). Significantly elevated levels of heavy metals in soil, rice and wheat grains indicated the heavy metals contamination of traffic emission in roadside rice-wheat rotation field. The contamination levels of Cd, Cr and Zn in wheat grain were higher than rice grain, while that of Pb showed an opposite trend. Obvious dissimilarities in the spatial distributions of heavy metals contents were found between in the soil, rice and wheat grains, indicating that the heavy metals contents in the roadside crop grains were not only determined by the concentrations of heavy metals in the paddy soil. Results of CART analysis showed that the spatial variation of the heavy metals contents in crop grains was mainly affected by the soil organic matter or soil pH, followed by the distance from highway and wind direction. Our findings have important implications for the environmental assessment and crop planning for food security along the highway.
学科主题	Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources ; ENGINEERING, ENVIRONMENTAL ; ENVIRONMENTAL SCIENCES ; PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH, SCI ; WATER RESOURCES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000307711000006
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5129]
专题	作物科学研究所_栽培生理学系
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Key Lab Crop Ecol Physiol & Prod, Minist Agr, Beijing 100081, Peoples R China 2.Nanjing Agr Univ, Inst Appl Ecol, Nanjing 210095, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Feng, Jinfei,Zhao, Jian,Bian, Xinmin,et al. Spatial distribution and controlling factors of heavy metals contents in paddy soil and crop grains of rice-wheat cropping system along highway in East China[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2012,34(5):605-614.
APA	Feng, Jinfei,Zhao, Jian,Bian, Xinmin,&Zhang, Weijian.(2012).Spatial distribution and controlling factors of heavy metals contents in paddy soil and crop grains of rice-wheat cropping system along highway in East China.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,34(5),605-614.
MLA	Feng, Jinfei,et al."Spatial distribution and controlling factors of heavy metals contents in paddy soil and crop grains of rice-wheat cropping system along highway in East China".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 34.5(2012):605-614.