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	High-resolution trace element records of an ice core from the eastern Tien Shan, central Asia, since 1953 AD
	Liu, Yaping1; Hou, Shugui1,4; Hong, Sungmin3,5; Do Hur, Soon3; Lee, Khanghyun3; Wang, Yetang2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2011-06-30
卷号	116页码:14
ISSN号	2169-897X
DOI	10.1029/2010JD015191
通讯作者	Liu, Yaping()
英文摘要	High-resolution records of trace elements (Ba, V, Cr, Mn, Co, Ni, Cu, As, Rb, Sr, Mo, Cd, Sn, Sb, Tl, Pb, Bi, Th, and U) quantified in an ice core recovered from the Miaoergou glacier in the eastern Tien Shan, central Asia, spanning the period 1953-2004 AD, provide the first comprehensive time series on characterizing the relative contributions from natural and anthropogenic sources to the deposition of trace elements in central Asia. It is suggested that rock and soil dust is the most important natural source for most of elements investigated. Slight decreases in concentrations (or fallout fluxes) of crustal elements, such as Ba, Mn, Rb, Th, U, and Sr are observed during recent decades, which may be due to decreases in dust emissions from source regions and a decrease of accumulation rate since 1980s. The increasing trends of median concentrations and crustal enrichment factors (EFc) of V, Cr, Co, Ni, Cu, and Mo, during the period 1953-2004 AD, are insignificant in comparison to their respective levels prior to 1953 AD. However, slight enhancements of both concentrations and EFc are observed for Cd, Sb, Pb, Bi, Tl, and Sn since 1950s. Such recent increases are likely to be attributed to enhanced anthropogenic emissions, such as metal smelting, mining, stationary fossil fuel combustion, and combustion of gasoline due to human activities in Eurasia, particularly Xinjiang in northwestern China, Russia, and Kazakhstan. Our study supports evidence that environmental contamination has become a global problem for Pb and Bi and a large-scale phenomenon for Cd, Sb, Tl, and Sn.
收录类别	SCI
WOS关键词	ATMOSPHERIC HEAVY-METALS ; MT. QOMOLANGMA EVEREST ; NORTHERN-HEMISPHERE ; CENTRAL GREENLAND ; ANTARCTIC SNOW ; LEAD POLLUTION ; ARCTIC CANADA ; COATS LAND ; PRECIPITATION ; CHINA
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000292380700001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556546
专题	寒区旱区环境与工程研究所
通讯作者	Liu, Yaping
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 2.Shandong Marine Fisheries Res Inst, Yantai 264006, Peoples R China 3.Korea Polar Res Inst, Inchon 406840, South Korea 4.Nanjing Univ, Sch Geog & Oceanog Sci, MOE Key Lab Coast & Isl Dev, Nanjing 210008, Peoples R China 5.Inha Univ, Dept Oceanog, Inchon, South Korea
推荐引用方式 GB/T 7714	Liu, Yaping,Hou, Shugui,Hong, Sungmin,et al. High-resolution trace element records of an ice core from the eastern Tien Shan, central Asia, since 1953 AD[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2011,116:14.
APA	Liu, Yaping,Hou, Shugui,Hong, Sungmin,Do Hur, Soon,Lee, Khanghyun,&Wang, Yetang.(2011).High-resolution trace element records of an ice core from the eastern Tien Shan, central Asia, since 1953 AD.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,116,14.
MLA	Liu, Yaping,et al."High-resolution trace element records of an ice core from the eastern Tien Shan, central Asia, since 1953 AD".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 116(2011):14.

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