Historical trends of anthropogenic metals in Eastern Tibetan Plateau as reconstructed from alpine lake sediments over the last century

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Historical trends of anthropogenic metals in Eastern Tibetan Plateau as reconstructed from alpine lake sediments over the last century
	Bing, Haijian1 ; Wu, Yanhong1 ; Zhou, Jun1 ; Li, Rui1,2 ; Wang, Jipeng1,2
刊名	CHEMOSPHERE
	2016-04-01
卷号	148 页码:211-219
关键词	Trace metals Atmospheric deposition Temporal trends Lacustrine sediment Alpine lake Gongga mountain
ISSN号	0045-6535
通讯作者	Wu, Yanhong
英文摘要	Reconstructing trace metal historical trends are essential for better understanding anthropogenic impact on remote alpine ecosystems. We present results from an alpine lake sediment from the Eastern Tibetan Plateau to decipher the accumulation history of cadmium (Cd), lead (Pb) and zinc (Zn) over last century, from the preindustrial to the modern period. Cd, Pb and Zn in the sediment of Caohaizi Lake clearly suffered from atmospheric deposition, and the mining and smelting were regarded as the main anthropogenic sources. Since the mid-1990s, over 80% of trace metals were quantified from anthropogenic emissions. The temporal trends of anthropogenic metal fluxes showed that the contamination history of Pb was earlier than that of Cd and Zn, which was in agreement with the regional Pb emission history, but lagged behind the Pb decline in Europe and North America. The fluxes of anthropogenic Cd and Zn were relatively constant until the 1980s, increased sharply between the 1980s and the mid-1990s, and then kept the high values. The anthropogenic fluxes of Pb showed a marked rise around 1950, and increased sharply in the 1980s. In the mid-1990s, this flux reached the peak, and then decreased gradually. The Pb deposition flux at present in comparison with other lake records in the areas of Tibetan Plateau further demonstrated that trace metals in the Caohaizi Lake region were probably from Southwest China and South Asia. Economic development in these regions still puts pressure on the remote alpine ecosystems, and thus the impact of trace metals merits more attention. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	ISOTOPE RATIOS ; HEAVY-METALS ; ATMOSPHERIC DEPOSITION ; SOURCE IDENTIFICATION ; ENRICHMENT FACTORS ; POLLUTION SOURCES ; SOUTHWEST CHINA ; FOREST SOILS ; TRACE-METALS ; LEAD
收录类别	SCI
语种	英语
WOS记录号	WOS:000371099700025
公开日期	2016-04-26
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/15066]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Alpine Ecosyst Observat & Expt Stn Gongga Mt, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Bing, Haijian,Wu, Yanhong,Zhou, Jun,et al. Historical trends of anthropogenic metals in Eastern Tibetan Plateau as reconstructed from alpine lake sediments over the last century[J]. CHEMOSPHERE,2016,148:211-219.
APA	Bing, Haijian,Wu, Yanhong,Zhou, Jun,Li, Rui,&Wang, Jipeng.(2016).Historical trends of anthropogenic metals in Eastern Tibetan Plateau as reconstructed from alpine lake sediments over the last century.CHEMOSPHERE,148,211-219.
MLA	Bing, Haijian,et al."Historical trends of anthropogenic metals in Eastern Tibetan Plateau as reconstructed from alpine lake sediments over the last century".CHEMOSPHERE 148(2016):211-219.