Effects of Land Use and Parent Materials on Trace Elements Accumulation in Topsoil

	Effects of Land Use and Parent Materials on Trace Elements Accumulation in Topsoil
	Cheng-Long Tu; Teng-Bing He; Cong-Qiang Liu; Xiao-Hui Lu
	2013
发表期刊	Journal of Environmental Quality
卷号	42 期号:1 页码:103-110
摘要	To determine the effects of parent material and land use on the concentration of trace elements in the agricultural topsoil of Guizhou Province, China, a total of 584 agricultural topsoil samples were collected in a typical region. The results indicate that the contents of trace elements (As, Cd, Cr, Hg, and Pb) in agricultural soils were greater than in the uncultivated soils, and the paddy fields exhibited higher contents of trace elements than dry lands. The enrichments of most trace elements in agricultural topsoil derived from carbonate rock were more serious. In paddy fields, Cd, Cr, and As showed positive relationships with soil organic matter (p < 0.01) but were not affected by pH, carbon-to-nitrogen (C/N) ratio, and clay (p > 0.05). Lead and Hg formed the second component in principal component analysis (PCA) and were closely related to pH and clay content. In dry lands, the trace elements were well correlated with pH, C/N, and clay (p < 0.05). Analysis of PCA and correlation showed that Cd, Cr, and Hg were mainly derived from inorganic fertilizers, whereas Pb and As were primarily from organic manures. These results suggest that the effect of anthropogenic activities on paddy fields is more serious than on dry lands. Parent materials not only serve as sources of soil trace elements but also control the loss and accumulation of trace elements by affecting soil physicochemical properties, especially in dry lands.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5111
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Cheng-Long Tu,Teng-Bing He,Cong-Qiang Liu,et al. Effects of Land Use and Parent Materials on Trace Elements Accumulation in Topsoil[J]. Journal of Environmental Quality,2013,42(1):103-110.
APA	Cheng-Long Tu,Teng-Bing He,Cong-Qiang Liu,&Xiao-Hui Lu.(2013).Effects of Land Use and Parent Materials on Trace Elements Accumulation in Topsoil.Journal of Environmental Quality,42(1),103-110.
MLA	Cheng-Long Tu,et al."Effects of Land Use and Parent Materials on Trace Elements Accumulation in Topsoil".Journal of Environmental Quality 42.1(2013):103-110.

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