气候变化领域集成服务门户(CCPortal): Traffic-related trace elements in soils along six highway segments on the Tibetan Plateau: Influence factors and spatial variation

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DOI	10.1016/j.scitotenv.2017.01.018
	Traffic-related trace elements in soils along six highway segments on the Tibetan Plateau: Influence factors and spatial variation
	Wang, Guanxing; Zeng, Chen; Zhang, Fan; Zhang, Yili; Scott, Christopher A.; Yan, Xuedong
通讯作者	Zhang, F (通讯作者)
发表日期	2017
ISSN	0048-9697
EISSN	1879-1026
起始页码	811
结束页码	821
卷号	581
英文摘要	The accumulation of traffic-related trace elements in soil as the result of anthropogenic activities raises serious concerns about environmental pollution and public health. Traffic is the main source of trace elements in roadside soil on the Tibetan Plateau, an area otherwise devoid of industrial emissions. Indeed, the rapid development of tourism and transportation in this region means it is becoming increasingly important to identify the accumulation levels, influence distance, spatial distribution, and other relevant factors influencing trace elements. In this study, 229 soil samples along six segments of the major transportation routes on the Tibetan Plateau (highways G214, S308, and G109), were collected for analysis of eight trace elements (Cr, Co, Ni, As, Cu, Zn, Cd, and Pb). The results of statistical analyses showed that of the eight trace elements in soils, Cu, Zn, Cd, and Pb were primarily derived from traffic. The relationship between the trace element accumulation levels and the distance from the roadside followed an exponential decline, with the exception of Segment 3, the only unpaved gravel road studied. In addition, the distance of influence from the roadside varied by trace element and segment, ranging from 16 m to 144 m. Background values for each segment were different because of soil heterogeneity, while a number of other potential influencing factors (including traffic volume, road surface material, roadside distance, land cover, terrain, and altitude) all had significant effects on trace-element concentrations. Overall, however,concentrations along most of the road segments investigated were at, or below, levels defined as low on the Nemero Synthesis index. (C) 2017 Elsevier B.V. All rights reserved.
关键词	HEAVY-METAL CONCENTRATIONS ROADSIDE SOILS RISK-ASSESSMENT CHINA URBAN CONTAMINATION EMISSIONS DUST LEAD IDENTIFICATION
英文关键词	Tibetan Plateau highways; Roadside soil; Traffic-related trace elements; Spatial distribution; Nemero Synthesis index
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000394635300079
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259058
推荐引用方式 GB/T 7714	Wang, Guanxing,Zeng, Chen,Zhang, Fan,et al. Traffic-related trace elements in soils along six highway segments on the Tibetan Plateau: Influence factors and spatial variation[J]. 中国科学院青藏高原研究所,2017,581.
APA	Wang, Guanxing,Zeng, Chen,Zhang, Fan,Zhang, Yili,Scott, Christopher A.,&Yan, Xuedong.(2017).Traffic-related trace elements in soils along six highway segments on the Tibetan Plateau: Influence factors and spatial variation.SCIENCE OF THE TOTAL ENVIRONMENT,581.
MLA	Wang, Guanxing,et al."Traffic-related trace elements in soils along six highway segments on the Tibetan Plateau: Influence factors and spatial variation".SCIENCE OF THE TOTAL ENVIRONMENT 581(2017).