DOI: 10.1016/j.atmosenv.2014.10.014
Scopus记录号: 2-s2.0-84908067581
论文题名: Atmospheric deposition of lead in remote high mountain of eastern Tibetan Plateau, China
作者: Bing H ; , Wu Y ; , Zhou J ; , Ming L ; , Sun S ; , Li X
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99 起始页码: 425
结束页码: 435
语种: 英语
英文关键词: China
; Hailuogou Glacier
; High mountain
; Lead isotope
; Source identification
Scopus关键词: Atmospheric depositions
; China
; Eastern Tibetan plateau
; High mountains
; Lead isotope
; Source identification
; coal
; lead
; anthropogenic source
; atmospheric deposition
; atmospheric pollution
; glacier retreat
; global warming
; lead
; moss
; mountain region
; pollutant transport
; soil profile
; Article
; atmospheric deposition
; atmospheric transport
; China
; combustion
; industry
; moss
; soil
; China
; Hailuogou Glacier
; Qinghai-Xizang Plateau
; Sichuan
; South Asia
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Global warming has induced visible glacier retreat on many high mountains. The glacier forelands with the chronosequence and vegetation succession offer a good opportunity to assess natural (e.g., mineral weathering) and anthropogenic influence on trace element geochemical cycling in high mountain ecosystems. In the present study, the concentrations and isotope composition of lead (Pb) in soil profiles and mosses from the Hailuogou Glacier foreland in eastern Tibetan Plateau were investigated. The enrichment of Pb in the O and A horizons of soil layers and mosses indicated the influence from recently atmospheric deposition, while the local soil parent materials mainly affected the C horizon of soils. The lower 206Pb/207Pb (1.160-1.180) and higher 208Pb/206Pb (2.092-2.120) ratios were observed in the O horizon in comparison with the A (1.171-1.209 and 2.042-2.108, respectively) and C (1.183-1.206 and 2.070-2.130, respectively) horizons. The Pb isotope composition in the mosses was similar to those of the O horizon. The Pb-ore-involved industries and coal combustion in southwest China and South Asia were identified as the major sources of Pb at the glacier foreland. The estimations using binary mixing model indicated that the anthropogenic Pb contribution was about 45.2-61.3% for the O horizon, 8.6-34.8% for the A horizon, and 41.6-65.9% for the mosses. The results indicated that the anthropogenic Pb could reach the remote high mountains of eastern Tibetan Plateau through long distance atmospheric transport. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80559
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Alpine Ecosystem Observation and Experiment Station of Gongga Mountain, The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
Recommended Citation:
Bing H,, Wu Y,, Zhou J,et al. Atmospheric deposition of lead in remote high mountain of eastern Tibetan Plateau, China[J]. Atmospheric Environment,2014-01-01,99