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Volume 22 Issue 4
Aug 2011
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Journal of Earth Science  > 2011  >  22(4): 482-489.
Feiteng Wang, Lin Wang, Jian Kang, Futang Kou. Chemical Characteristics of Snow-Firn Pack in Altai Mountains and Its Environmental Significance. Journal of Earth Science, 2011, 22(4): 482-489. doi: 10.1007/s12583-011-0202-9
Citation: Feiteng Wang, Lin Wang, Jian Kang, Futang Kou. Chemical Characteristics of Snow-Firn Pack in Altai Mountains and Its Environmental Significance. Journal of Earth Science, 2011, 22(4): 482-489. doi: 10.1007/s12583-011-0202-9
shu

Chemical Characteristics of Snow-Firn Pack in Altai Mountains and Its Environmental Significance

doi: 10.1007/s12583-011-0202-9
  • 1.

    State Key Laboratory of Cryospheric Sciences/Tianshan Glaciological Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

  • 2.

    Kanas National Nature Reserve, Aletai 836600, China

Funds:

the Knowledge Innovation Project of the Chinese Academy of Sciences KZCX2-EW-311

the National Basic Research Program of China 2010CB951003

the National Natural Science Foundation of China 91025012

the National Natural Science Foundation of China 111141001

the National Natural Science Foundation of China J0930003/J0109

the Program for New Century Excellent Talents in University NCET-10-0019

the SKLCS founding SKLCS-ZZ-2010-04

More Information
  • Corresponding author: Lin Wang, tingting729@163.com
  • Received Date: 22 Dec 2010
  • Accepted Date: 08 Apr 2011
  • Publish Date: 01 Aug 2011
    Abstract
  • In order to study the chemical characteristics of snow-firn pack in Altai Mountains and its environmental significance, a 1.5-m deep snow-firn pack was dug in the accumulation zone (3 300 m a.s.l.) of the Kanas Glacier in August 2009. A total of 15 samples were analyzed for major ions. Results show that the concentrations of major ions in the snow-firn pack are NH4+ > SO42− > Ca2+ > NO3− > Na+ > Cl− > K+ > Mg2+. NH4+ is the dominant cation with a medium value of 4.7 ueq·L−1, accounting for 39.8% of the total cations, and SO42− is the dominant anion, with a medium value of 4.0 ueq·L−1, which accounts for 33.9% of the total cations. Compared with Belukha Glacier (Altai), Urumqi Glacier No. 1, and the Inilchek Glacier (Tienshan), there is a lower ion concentrations in the Kanas snow-firn pack. Potential sources of these chemical species are explored using correlation and empirical orthogonal function (EOF) analyses. The analyses indicate that major ion concentrations (except NH4+) originate from crustal dust. Backward trajectory analysis was applied to get the origin of the air mass to Kanas Glacier. The results suggest that air pollutants emitted by forest fires in Siberia could be transported and influence the NH4+, NO3−, and SO42− concentrations on the Kanas Glacier.

     

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