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, Jinfei2; Zhao, Jian2; Bian, Xinmin2; Zhang, Weijian1,2 | |
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. |
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