气候变化领域集成服务门户(CCPortal): Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau

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DOI	10.1007/s12665-023-11256-9
	Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau
	Xiao, Fangjing; Cui, Xiaomei; Zhao, Yuanzhao; Fu, Jianjie; Yu, Tao; Bu, Duo; Zhang, Qiangying
发表日期	2023
ISSN	1866-6280
EISSN	1866-6299
卷号	82 期号:23
英文摘要	In this study, 112 agricultural topsoil samples were collected from the Yarlung Zangbo River Basin (YZRB) and its two tributaries, and the concentrations, spatial distribution, source apportionment, and potential ecological risk of eight heavy metals (Cd, Hg, Pb, Cr, Cu, Zn, Ni and As) were analyzed. The mean concentrations of Cu, Pb, Zn, Cr, Ni, Cd, As, Hg and Pb were 33.91, 28.21, 86.93, 109.04, 73.58, 0.12, 21.49 and 0.05 mg/kg, respectively. Except for Pb, the concentration of heavy metals in soil exceeded the corresponding local background values, but did not exceed the national soil pollution risk screening values. In terms of spatial distribution, it showed that the heavy metals were enriched in the Nianchu River, and followed by Lhasa River and YZRB mainstream. Furthermore, the ecological risks were ordered as Hg > Cd > As > Ni > Cu > Pb > Cr > Zn, and the potential ecological risk index of the YZRB fell in the range of moderate ecological risk. The high-risk areas were in the facility agriculture fields of the Nianchu River, which was mainly related to agricultural activities. In addition, the positive matrix factorization results showed traffic, agricultural activities, natural weathering of the parent minerals, and atmospheric transport sources were the four sources in soils of the YZRB. This work will provide a scientific reference to develop appropriate pollution control measures and facility farmlands management in the YZRB of Tibetan Plateau.
关键词	Yarlung Zangbo River Basin Soil Heavy metals Source apportionment
英文关键词	MATRIX FACTORIZATION MODEL; UNCERTAINTY ANALYSIS; RISK-ASSESSMENT; TRACE-ELEMENTS; POLLUTION; MULTIVARIATE; IDENTIFICATION; DUST
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:001105596400002
来源期刊	ENVIRONMENTAL EARTH SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283613
作者单位	Tibet University; Chinese Academy of Sciences; Research Center for Eco-Environmental Sciences (RCEES)
推荐引用方式 GB/T 7714	Xiao, Fangjing,Cui, Xiaomei,Zhao, Yuanzhao,et al. Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau[J],2023,82(23).
APA	Xiao, Fangjing.,Cui, Xiaomei.,Zhao, Yuanzhao.,Fu, Jianjie.,Yu, Tao.,...&Zhang, Qiangying.(2023).Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,82(23).
MLA	Xiao, Fangjing,et al."Concentration, spatial distribution, and source apportionment of heavy metals in agricultural soils from the Yarlung Zangbo River Basin, Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 82.23(2023).