气候变化领域集成服务门户(CCPortal): Contamination characteristics, source analysis, and spatial prediction of soil heavy metal concentrations on the Qinghai-Tibet Plateau

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DOI	10.1007/s11368-023-03462-6
	Contamination characteristics, source analysis, and spatial prediction of soil heavy metal concentrations on the Qinghai-Tibet Plateau
	Du, Haolin; Wang, Jinsong; Wang, Ying; Yao, Yubi; Liu, Xiaoyun; Zhou, Yue
发表日期	2023
ISSN	1439-0108
EISSN	1614-7480
起始页码	2202
结束页码	2215
卷号	23 期号:5
英文摘要	PurposeSoil heavy metal distribution is a key issue in environmental and health research. In recent years, an increasing number of anthropogenic disturbances have been identified on the Qinghai-Tibetan Plateau, leading to increased heavy metal contamination of soils. Therefore, this study investigated the distribution, sources, ecological risk, and prediction of heavy metals in soils on the Qinghai-Tibetan Plateau.Material and methodsHere, for each of the seven heavy metals (i.e., Cr, Ni, Cu, Zn, As, Cd, and Pb) investigated in the soil of the Qinghai-Tibet Plateau, we collected soil concentration values from the literature and carried out field sampling to generate new data. We then assessed the pollution characteristics and sources of soil heavy metals on the Qinghai-Tibet Plateau using geostatistics, positive matrix factorization model (PMF), disjunctive kriging, and mapped the pollution risk probability distribution of each heavy metal element.Results and discussionSpatial autocorrelation was found for all seven heavy metals in the soils. Under different land-use types, the average concentrations of Cr, As, and Cd were highest in the water areas; Ni levels were highest in woodland; and Cu, Zn, and Pb concentrations were highest in residential, industrial, and mining lands. Using analysis by the PMF model and correlation analysis, four heavy metal sources were identified, including industrial sources and atmospheric deposition (Cd), traffic emissions (Cr, Zn, and Zn), natural sources (Ni and As), and mining activities (Cr and Pb). The pollution risk probabilities of Cr, Ni, Cu, Zn, As, and Pb were low in most areas of the Qinghai-Tibet Plateau, whereas the pollution risk probability of Cd was high over 29% of the area of the Qinghai-Tibet Plateau.ConclusionThe results highlighted no potential contamination for Cr, local potential contamination for Ni, Cu, Zn, As and Pb, while Cd exhibits more extensive contamination in the soils of the Qinghai-Tibet Plateau. Cd reduction should therefore be considered an important component of the strategy, policy, and action plan for soil pollution management on the Qinghai-Tibet Plateau.
关键词	Qinghai-Tibet Plateau Soil Heavy metals Geostatistical analysis Sources Disjunctive kriging
英文关键词	POSITIVE MATRIX FACTORIZATION; HEALTH-RISK ASSESSMENT; SOURCE APPORTIONMENT; AGRICULTURAL SOIL; GLOBAL POLLUTION; SEDIMENTS; IDENTIFICATION; VARIABILITY; ENRICHMENT; WATER
WOS研究方向	Environmental Sciences ; Soil Science
WOS记录号	WOS:000946841800002
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282623
作者单位	China Meteorological Administration; China Meteorological Administration; China Meteorological Administration
推荐引用方式 GB/T 7714	Du, Haolin,Wang, Jinsong,Wang, Ying,et al. Contamination characteristics, source analysis, and spatial prediction of soil heavy metal concentrations on the Qinghai-Tibet Plateau[J],2023,23(5).
APA	Du, Haolin,Wang, Jinsong,Wang, Ying,Yao, Yubi,Liu, Xiaoyun,&Zhou, Yue.(2023).Contamination characteristics, source analysis, and spatial prediction of soil heavy metal concentrations on the Qinghai-Tibet Plateau.JOURNAL OF SOILS AND SEDIMENTS,23(5).
MLA	Du, Haolin,et al."Contamination characteristics, source analysis, and spatial prediction of soil heavy metal concentrations on the Qinghai-Tibet Plateau".JOURNAL OF SOILS AND SEDIMENTS 23.5(2023).