Source identification of soil elements and risk assessment of trace elements under different land uses on the Loess Plateau, China

doi:10.1007/s10653-020-00624-0

	Source identification of soil elements and risk assessment of trace elements under different land uses on the Loess Plateau, China
	Zhang, Xiang 2,3; She, Dongli 1,3; Wang, Guangbo 1; Huang, Xuan 1
刊名	ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
	2020-06-23
页码	16
关键词	Trace elements Source apportionment Enrichment factor (EF) Soil pollution Loess Plateau
ISSN号	0269-4042
DOI	10.1007/s10653-020-00624-0
通讯作者	She, Dongli(shedongli@hhu.edu.cn)
英文摘要	To investigate the source identification of soil elements and risk assessment of trace elements under different land-use types, 32 pairs of topsoil samples (0-20 cm) were collected from two subcatchments in the Liudaogou watershed. The areas of the two subcatchments were 0.343 and 0.045 km(2), respectively, and the two subcatchments were divided into four land-use types, including bare land, forestland (FL), grassland (GL) and check-dam land (CDL). The results showed that the coefficients of variations of all soil elements indicated moderate spatial variation. The mean concentrations of Cu, K, Mn, Na and Zn under different land-use types exceeded the soil background values. The results of correlation analysis and principal component analysis illustrated that high homology existed between Cu and Mn in subcatchment 1, and the main source was from coal mines and smelters. Consistent sources of Zn and K in subcatchment 1 were mainly fertilizers and sewage sludge. Cu, K, Mg, Mn, Na and Zn in subcatchment 2 had similar sources, mainly mining and smelting plants, fertilizers and sewage. In addition, Ca had high homology with Fe in two subcatchments, mainly from natural weathering. The enrichment factor values indicated that there was a certain degree of trace element pollution. The values of the pollution index and Nemerow integrated pollution index revealed that moderate pollution was mainly concentrated in FL, GL and CDL. The trace element pollution of GL and CDL may induce contamination of the food chain and threaten human health safety.
资助项目	Chinese Academy of Sciences Light of West China Program
WOS关键词	HEAVY-METAL SOURCES ; DRY DEPOSITION FLUXES ; SPATIAL-DISTRIBUTION ; AGRICULTURAL SOILS ; SOURCE APPORTIONMENT ; URBAN TOPSOILS ; AREA ; SEDIMENTS ; POLLUTION ; REGION
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000542551000001
资助机构	Chinese Academy of Sciences Light of West China Program
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162266]
专题	中国科学院地理科学与资源研究所
通讯作者	She, Dongli
作者单位	1.Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiang,She, Dongli,Wang, Guangbo,et al. Source identification of soil elements and risk assessment of trace elements under different land uses on the Loess Plateau, China[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2020:16.
APA	Zhang, Xiang,She, Dongli,Wang, Guangbo,&Huang, Xuan.(2020).Source identification of soil elements and risk assessment of trace elements under different land uses on the Loess Plateau, China.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,16.
MLA	Zhang, Xiang,et al."Source identification of soil elements and risk assessment of trace elements under different land uses on the Loess Plateau, China".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH (2020):16.