中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Characteristics of modern atmospheric dust deposition in snow in the Mt. Yulong region, southeastern Tibetan Plateau (SCI)

文献类型:期刊论文

作者Niu H. W. ; He Y. Q. ; Lu X. X. ; Dong Z. W. ; Zhao G. Y. ; Zhang T. ; Du J. K.
刊名Journal of Asian Earth Sciences
出版日期2014
卷号94期号:45-54
英文摘要We evaluated the concentration, size and distribution, and temporal variation of insoluble dust micro-particles in the snow, rainfall and water taken from the areas surrounding the Mt. Yulong to define the characteristics of modern atmospheric dust deposition and the contributions of different dust sources. The mean mass concentration (4511 mu g kg(-1)) of micro-particles with 0.57 < d < 26 mu m, and the diameter (11.5 mu m) of dust contained in the water bodies of the Mt. Yulong are roughly similar to those observed in other sites, implying that dust is primarily supplied through short-range transport from proximal source regions (several or hundreds of km distances). The mean mass concentrations of micro-particles with 0.57 < d < 26 mu m is lower in the rainfall than in the snow and the river water, suggesting the rain water is an ideal source/carrier for detecting the characteristics of modern atmospheric micro-particles. Volume size distributions of micro-particles in the snow and water showed single modal structures having volume median diameters from 3 to 26 gm. Number concentrations of micro-particles in the snow were higher than that in the rainfall, the river water contains the least amount of microparticles. Vertical profiles of the snowpits show that there is a strong lateral correlation among the dust peaks, indicating a regional uniformity of dust deposition and suitability of snow analysis for dust deposition. In addition, the bare rock of snow-free terrain in the Mt. Yulong region and the mineral particles from local rock weathering are also important sources for the dust deposition. (C) 2014 Elsevier Ltd. All rights reserved.
收录类别SCI
公开日期2015-12-24
源URL[http://ir.casnw.net/handle/362004/25060]  
专题寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所(未分类)_期刊论文
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GB/T 7714
Niu H. W.,He Y. Q.,Lu X. X.,et al. Characteristics of modern atmospheric dust deposition in snow in the Mt. Yulong region, southeastern Tibetan Plateau (SCI)[J]. Journal of Asian Earth Sciences,2014,94(45-54).
APA Niu H. W..,He Y. Q..,Lu X. X..,Dong Z. W..,Zhao G. Y..,...&Du J. K..(2014).Characteristics of modern atmospheric dust deposition in snow in the Mt. Yulong region, southeastern Tibetan Plateau (SCI).Journal of Asian Earth Sciences,94(45-54).
MLA Niu H. W.,et al."Characteristics of modern atmospheric dust deposition in snow in the Mt. Yulong region, southeastern Tibetan Plateau (SCI)".Journal of Asian Earth Sciences 94.45-54(2014).

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来源:寒区旱区环境与工程研究所

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