气候变化领域集成服务门户(CCPortal): Characterization of contemporary aeolian dust deposition on mountain glaciers of western China

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DOI	10.3724/SP.J.1226.2016.00009
	Characterization of contemporary aeolian dust deposition on mountain glaciers of western China
	Xu, JianZhong; Kang, ShiChang; Hou, ShuGui; Zhang, QiangGong; Huang, Jie; Xiao, CunDe; Ren, JiaWen; Qin, DaHe
发表日期	2016
ISSN	1674-3822
起始页码	9
结束页码	21
卷号	8 期号:1
英文摘要	From 2008 to 2010, a total of 15 snow pit samples were collected from 13 mountain glaciers in western China. In this study these samples are used to determine the spatial distribution of insoluble particle concentrations and dust deposition fluxes in western China. The results show that the mass concentrations of insoluble particles exhibit high spatial variation and strongly decrease (by a factor of approximately 50) from the north (Tienshan Mountains) to the south (Himalayas). However, the insoluble particles concentrations at the southeastern Tibetan Plateau (TP) sites are also high and approximately 30 times greater than those in the Himalayas. The spatial distribution of the dust flux is similar to that of the mass concentrations; however, the high dust deposition rate in the southeastern TP is very significant as a result of the extensive snow accumulation (precipitation) in this region. The average sizes of the insoluble particles at each site generally exhibit bimodal distributions with peaks at approximately 5 mu m and 10 mu m, which can be explained as resulting from dust emissions from regional and local sources, respectively. The enrichment factors for most of the elements measured in insoluble particles are less than 10 at all of the study sites, indicating primarily crustal sources. However, the sites located in the peripheral mountains of western China, such as the Tienshan Mountains and the Himalayas, are characterized by high levels of certain enrichment elements (e.g., Cu, Zn, Cr, and V) indicative of sources related to the long-range transport of pollutants.
英文关键词	snow pit; dust; insoluble particle; Tibetan Plateau
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
来源期刊	SCIENCES IN COLD AND ARID REGIONS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158557
作者单位	Xu, JZ (corresponding author), Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Xu, JianZhong,Kang, ShiChang,Hou, ShuGui,et al. Characterization of contemporary aeolian dust deposition on mountain glaciers of western China[J],2016,8(1).
APA	Xu, JianZhong.,Kang, ShiChang.,Hou, ShuGui.,Zhang, QiangGong.,Huang, Jie.,...&Qin, DaHe.(2016).Characterization of contemporary aeolian dust deposition on mountain glaciers of western China.SCIENCES IN COLD AND ARID REGIONS,8(1).
MLA	Xu, JianZhong,et al."Characterization of contemporary aeolian dust deposition on mountain glaciers of western China".SCIENCES IN COLD AND ARID REGIONS 8.1(2016).