干旱区生态环境知识资源中心(Arid): Ecological Heavy Metals Risk of Saline Lake Sediments in Northwestern China

Arid

DOI	10.15244/pjoes/112206
	Ecological Heavy Metals Risk of Saline Lake Sediments in Northwestern China
	Li, Dianpeng 1,2; Jiang, Jingbailun 1,2; Yan, Cuixia 1,2; Zhang, Mei 1,2; Zhao, Yi 1,2; Xiang, Yin 1; Ma, Wenqi 1,2; Jia, Hongtao 1,2; Zhao, Xiaoning 3,4,5
通讯作者	Jia, Hongtao
来源期刊	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
ISSN	1230-1485
EISSN	2083-5906
出版年	2020
卷号	29 期号:4 页码:2697-2708
英文摘要	Lake sediment as a potential sink and source of contaminants, it is still relatively less known about than the ecological heavy metals risk in an arid region saline lake. The goal of this study aimed to reveal concentrations of Cr, Ni, Cu, Zn, As, Cd and Pb in saline lake sediments, and to evaluate its pollution status, potential ecological risks and sources for sediments in the study area. Here we analyzed 13, 15 and 8 sediment samples from Ebinur Lake, Barkol Lake and Dabancheng Saline Lake, respectively. The mean concentrations of Cr (74.55 mg kg(-1)), Cu (27.75 mg kg(-1)), Zn (73.00 mg kg(-1)), As (37.65 mg kg(-1)), and Cd (0.31 mg kg(-1)) were higher than the background values of the Xinjiang, and the mean enrichment factor (EF) and geo-accumulation index (I-geo) showed that As (EF = 7.44, I-geo = 1.35) and Cd (EF = 11.09, I-geo = 0.50) in saline lake sediments were moderate and partially seriously contaminated, while Cr, Zn and Cu caused moderate pollution. The potential ecological (RI) seven heavy metals risk assessment degree decreased in the following sequence: Cd (78.77)>As (32.22)> Cu (5.22)>Ni (4.28)>Pb (3.27)>Cr (3.21)>Zn (1.07), and the RI for Cd exhibited moderate to considerable risk. The As and Cd were the major risk factors among the seven metals. Correlation analysis, principal component analysis and hierarchical cluster analysis deduced that Cu, Ni, and Zn originate mainly from a geological background, while As, Cd and Cr were mainly from anthropogenic sources. Anthropogenic activities lead to heavy metals enrichment in sediments, while As and Cd are the primary contaminants in saline lake sediments in northwestern China.
英文关键词	heavy metals risk assessment saline lake sediment pollution arid region
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000527787100017
WOS关键词	SPATIAL-DISTRIBUTION ; SURFACE SEDIMENTS ; PLATEAU LAKE ; TAIHU LAKE ; CONTAMINATION ; POLLUTION ; RIVER ; IDENTIFICATION ; ANTIMONY ; AREA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315360
作者单位	1.Xinjiang Agr Univ, Coll Grassland & Environm Sci, Urumqi, Xinjiang, Peoples R China; 2.Xinjiang Key Lab Soil & Plant Ecol Proc, Urumqi, Xinjiang, Peoples R China; 3.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Xinjiang Inst Ecol & Geog, Urumqi, Xinjiang, Peoples R China; 4.Aksu Natl Stn Observat & Res Oasis Agroecosyst, Aksu, Xinjiang, Peoples R China; 5.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Dianpeng,Jiang, Jingbailun,Yan, Cuixia,et al. Ecological Heavy Metals Risk of Saline Lake Sediments in Northwestern China[J]. 中国科学院新疆生态与地理研究所,2020,29(4):2697-2708.
APA	Li, Dianpeng.,Jiang, Jingbailun.,Yan, Cuixia.,Zhang, Mei.,Zhao, Yi.,...&Zhao, Xiaoning.(2020).Ecological Heavy Metals Risk of Saline Lake Sediments in Northwestern China.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,29(4),2697-2708.
MLA	Li, Dianpeng,et al."Ecological Heavy Metals Risk of Saline Lake Sediments in Northwestern China".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 29.4(2020):2697-2708.