Geostatistical analyses and co-occurrence correlations of heavy metals distribution with various types of land use within a watershed in eastern QingHai-Tibet Plateau, China

doi:10.1016/j.scitotenv.2018.10.386

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	Geostatistical analyses and co-occurrence correlations of heavy metals distribution with various types of land use within a watershed in eastern QingHai-Tibet Plateau, China
	Dai, LJ (Dai, Lijun)1; Wang, LQ (Wang, Lingqing)1,2; Liang, T (Liang, Tao)1,2; Zhang, YY (Zhang, Yongyong)1,2; Li, J (Li, Jing)1,2; Xiao, J (Xiao, Jun)3; Dong, LL (Dong, Linlin)4; Zhang, HD (Zhang, Haidong)4
通讯作者	Wang, Lingqing(wanglq@igsnrr.ac.cn)
	2019-02-25
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	653 页码:849-859
产权排序	3
摘要	Due to increasing anthropogenic disturbance, various pollutants have been frequently detected in QingHai-Tibet Plateau, where the environment is extremely fragile and sensitive to human activities. In this study, 51 sampling siteswith different land coverswere selected in a sub-basin in theHuangshui watershed in eastern QingHai-Tibet Plateau. A total of 102 soil samples were collected at surface (0-20 cm) and subsurface (20-40 cm) depths for studying on heavy metal pollution in this region. The relationships between land cover types and spatial distribution of five heavy metals Cr, Cu, Cd, Pb, and Zn were systematically analyzed combing field survey, remotesensing database, and geostatistical methods. The relationships between soil physiochemical properties and heavy metals were assessed by geostatistics, co-occurrence network analysis and geographically weighted regression (GWR) model. The results indicated that the average concentrations of all five heavy metals in soil were higher than the local background values, indicating the influence of anthropogenic inputs of these elements into environment. Strong positive correlations were observed between some heavy metals and soil physicchemical properties in different land covers, combinedwith the geoaccumulation index, human activities contribution can be interpolated. The Cr and Zn in surface soils are explainers for Cr and Zn in subsurface soils in the GWRmodels respectively, as well as the area of different land cover. Cd contamination was specifically analyzed due to its degree of contamination and then the sources of Cd were identified such as energy production as well as chemical fertilizers. The results of this study can provide basic data for long-termaccumulation of heavymetals in soils under different land uses in QingHai-Tibet Plateau.
关键词	Heavy metal Co-occurrence network Geostatistics Geographically weighted regression Soil
DOI	10.1016/j.scitotenv.2018.10.386
关键词[WOS]	RISK-ASSESSMENT ; SPATIAL-DISTRIBUTION ; SURFACE SOILS ; URBAN SOILS ; DONGTING LAKE ; HEALTH-RISK ; CONTAMINATION ; GIS ; ENRICHMENT ; SEDIMENT
收录类别	SCI ; SCIE
语种	英语
资助项目	Strategic Priority Research Program A of the Chinese Academy of Sciences[XDA20010301] ; National Natural Scientific Foundation of China[41501326] ; National Natural Scientific Foundation of China[41501296]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	Strategic Priority Research Program A of the Chinese Academy of Sciences ; National Natural Scientific Foundation of China
WOS类目	Environmental Sciences
WOS记录号	WOS:000458626800086
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：64[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/10947
专题	加速器质谱中心
通讯作者	Wang, LQ (Wang, Lingqing)
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China; 4.Suzhou Acad Agr Sci, Suzhou 215155, Peoples R China
推荐引用方式 GB/T 7714	Dai, LJ ,Wang, LQ ,Liang, T ,et al. Geostatistical analyses and co-occurrence correlations of heavy metals distribution with various types of land use within a watershed in eastern QingHai-Tibet Plateau, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,653:849-859.
APA	Dai, LJ .,Wang, LQ .,Liang, T .,Zhang, YY .,Li, J .,...&Zhang, HD .(2019).Geostatistical analyses and co-occurrence correlations of heavy metals distribution with various types of land use within a watershed in eastern QingHai-Tibet Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,653,849-859.
MLA	Dai, LJ ,et al."Geostatistical analyses and co-occurrence correlations of heavy metals distribution with various types of land use within a watershed in eastern QingHai-Tibet Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 653(2019):849-859.

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