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Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China

LI Zhongqin,  LI Huilin,  DONG Zhiwen,  ZHANG Mingjun

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文章导航 > Chinese Geographical Science  > 2010 >  20(5): 389-397
LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. 中国地理科学, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
引用本文: LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. 中国地理科学, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
shu
LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. Chinese Geographical Science, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
Citation: LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. Chinese Geographical Science, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
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Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China

doi: 10.1007/s11769-010-0412-6
  • 1.

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

  • 2.

    College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China;

  • 3.

    Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

基金项目: Under the auspices of Major State Basic Research Development Program of China(No.2010CB951003);Knowledge Innovation Programs of the Chinese Academy of Sciences(No.KZCXZ-YW-127);National Natural Science Foundation of China(No.40631001,40571033,40701034,40371028,J0630966,40701035)
详细信息
    通讯作者:

    DONG Zhiwen.E-mail:happyabear@163.com

Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China

  • 1.

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

  • 2.

    College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China;

  • 3.

    Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

Funds: Under the auspices of Major State Basic Research Development Program of China(No.2010CB951003);Knowledge Innovation Programs of the Chinese Academy of Sciences(No.KZCXZ-YW-127);National Natural Science Foundation of China(No.40631001,40571033,40701034,40371028,J0630966,40701035)

  • 摘要: Ice and snow chemistry of alpine glaciers is crucial for the research of regional atmospheric environment change. Fresh snow samples were weekly collected from Urumqi Glacier No.1 in the Tianshan Mountains, Xinjiang, China, and the chemical characteristics and seasonal variations of major ions, mineral dust, δ18O and trace metals were measured. Results show that the concentrations of major ions in the snow are Ca2+ > SO42-> NH4+ > NO3-> Cl-> Na+ > Mg2+ > K+, in which Ca2+ is the dominant cation, and SO42- is the dominant anion. All major ions have close positive correlations with each other except NO3-. δ18O shows positive correlation with air temperature change during the study period. Mineral dust particle and major ionic concentrations in fresh snow have obvious seasonal change, with high concentration in spring but low concentration in summer and autumn, which indicates that the chemical mass input from Asian dust activity to snow is very significant. Temporal changes of trace metals in fresh snow, e.g., Cd, Pb, Zn, Al, Fe, have shown that human-induced pollution of central Asian region also has large contribution to the snow chemistry on alpine glaciers of the Tianshan Mountains.
    Abstract: Ice and snow chemistry of alpine glaciers is crucial for the research of regional atmospheric environment change. Fresh snow samples were weekly collected from Urumqi Glacier No.1 in the Tianshan Mountains, Xinjiang, China, and the chemical characteristics and seasonal variations of major ions, mineral dust, δ18O and trace metals were measured. Results show that the concentrations of major ions in the snow are Ca2+ > SO42-> NH4+ > NO3-> Cl-> Na+ > Mg2+ > K+, in which Ca2+ is the dominant cation, and SO42- is the dominant anion. All major ions have close positive correlations with each other except NO3-. δ18O shows positive correlation with air temperature change during the study period. Mineral dust particle and major ionic concentrations in fresh snow have obvious seasonal change, with high concentration in spring but low concentration in summer and autumn, which indicates that the chemical mass input from Asian dust activity to snow is very significant. Temporal changes of trace metals in fresh snow, e.g., Cd, Pb, Zn, Al, Fe, have shown that human-induced pollution of central Asian region also has large contribution to the snow chemistry on alpine glaciers of the Tianshan Mountains.
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出版历程
  • 收稿日期:  2010-02-08
  • 修回日期:  2010-06-02
  • 刊出日期:  2010-09-15

Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China

doi: 10.1007/s11769-010-0412-6
  • 1. The State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute/Tianshan Glaciological Station, Chinese Academy of Sciences, Lanzhou 730000, China;
  • 2. College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China;
  • 3. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
    • 基金项目:  Under the auspices of Major State Basic Research Development Program of China(No.2010CB951003);Knowledge Innovation Programs of the Chinese Academy of Sciences(No.KZCXZ-YW-127);National Natural Science Foundation of China(No.40631001,40571033,40701034,40371028,J0630966,40701035)
    通讯作者: DONG Zhiwen.E-mail:happyabear@163.com
  • 收稿日期: 2010-02-08
  • 修回日期: 2010-06-02
  • 刊出日期: 2010-09-15

摘要: Ice and snow chemistry of alpine glaciers is crucial for the research of regional atmospheric environment change. Fresh snow samples were weekly collected from Urumqi Glacier No.1 in the Tianshan Mountains, Xinjiang, China, and the chemical characteristics and seasonal variations of major ions, mineral dust, δ18O and trace metals were measured. Results show that the concentrations of major ions in the snow are Ca2+ > SO42-> NH4+ > NO3-> Cl-> Na+ > Mg2+ > K+, in which Ca2+ is the dominant cation, and SO42- is the dominant anion. All major ions have close positive correlations with each other except NO3-. δ18O shows positive correlation with air temperature change during the study period. Mineral dust particle and major ionic concentrations in fresh snow have obvious seasonal change, with high concentration in spring but low concentration in summer and autumn, which indicates that the chemical mass input from Asian dust activity to snow is very significant. Temporal changes of trace metals in fresh snow, e.g., Cd, Pb, Zn, Al, Fe, have shown that human-induced pollution of central Asian region also has large contribution to the snow chemistry on alpine glaciers of the Tianshan Mountains.

English Abstract

LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. 中国地理科学, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
引用本文: LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. 中国地理科学, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
shu
LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. Chinese Geographical Science, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
Citation: LI Zhongqin, LI Huilin, DONG Zhiwen, ZHANG Mingjun. Chemical Characteristics and Environmental Significance of Fresh Snow Deposition on Urumqi Glacier No.1 of Tianshan Mountains, China[J]. Chinese Geographical Science, 2010, 20(5): 389-397. doi: 10.1007/s11769-010-0412-6
shu

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