天山哈密庙尔沟平顶冰川和奎屯河哈希勒根51号冰川成冰带与雪层pH值和电导率对比研究

doi:10.7522/j.issn.1000-0240.2007.0108

冰川冻土 ›› 2007, Vol. 29 ›› Issue (5): 710-716.doi: 10.7522/j.issn.1000-0240.2007.0108

天山哈密庙尔沟平顶冰川和奎屯河哈希勒根51号冰川成冰带与雪层pH值和电导率对比研究

李向应^1,2, 丁永建^1,2, 刘时银^2,3, 李忠勤²

1. 中国科学, 院寒区旱区环境与工程研究所, 寒旱区流域水文与应用生态实验室, 甘肃, 兰州, 730000;
2. 中国科学院, 寒区旱区环境与工程研究所, 冰冻圈科学国家重点实验室, 甘肃, 兰州, 730000;
3. 中国科学院, 青藏高原研究所, 北京, 100085

收稿日期:2007-01-16 修回日期:2007-04-13 出版日期:2007-10-25 发布日期:2012-04-26
基金资助:
国家自然科学基金项目(405710344060102240571033);中国科学院知识创新工程重要方向项目(KZCX2-YW-301KZCX3-SW-345);科技部科技基础性工作专项(2006FY110200);国家重点基础研究发展计划项目(2007CB411500)资助

A Preliminary Study of the Stratigraphy Profiles,pH and Electrical Conductivity in Snowpits on the Miaoergou Flat-Topped Glacier in Hami and the Glacier No.51 at Haxilegen of the Kuytun River,Tianshan Mountains

LI Xiang-ying^1,2, DING Yong-jian^1,2, LIU Shi-yin^2,3, LI Zhong-qin²

1. Hydrology and Ecology Laboratory of Watershed, CAREERI, CAS, Lanzhou Gansu 730000, China;
2. Key StateLaboratory of Cryospheric Science, CAREERI, CAS, Lanzhou Gansu 730000, China;
3. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China

Received:2007-01-16 Revised:2007-04-13 Online:2007-10-25 Published:2012-04-26

摘要/Abstract

摘要： 对天山哈密庙尔沟平顶冰川和奎屯河哈希勒根51号冰川的雪层剖面及雪坑中pH值和电导率的变化特征进行了初步研究.结果表明:哈密庙尔沟平顶冰川以渗浸-冻结成冰作用为主,一年成冰,成冰带由消融带和渗浸-冻结带组成,渗浸-冻结带的垂直高度在60 m左右或者更大一点;奎屯河哈希勒根51号冰川的成冰作用以暖型为主,成冰带由消融带、渗浸-冻结带和渗浸带组成,渗浸-冻结带的垂直高度不大于70 m.雪坑中pH值和电导率的较高值一般出现在冰片和污化层附近,这与冰的阻碍、引起可溶性离子在冰面上部的高浓度值和可溶性离子的淋溶过程与污化物的迁移过程密切联系直接相关.哈密庙尔沟平顶冰川雪坑中pH值和电导率之间的相关性异于奎屯河哈希勒根51号冰川,由于雪坑的资料有限,有待进一步的深入研究.

关键词: 雪层剖面, pH值, 电导率, 庙尔沟平顶冰川, 哈希勒根51号冰川, 雪层剖面, pH值, 电导率, 庙尔沟平顶冰川, 哈希勒根51号冰川

Abstract: Stratigraphy profiles,pH and electrical conductivity in snowpits on the Miaoergou Flat-Topped Glacier in Hami and Glacier No.51 at Haxilegen of the Kuytun River,Tianshan Mountains,were studied.It was found that the percolation-freezing process dominates on the Miaoergou Flat-Topped Glacier with strong ablation,the time for snow transforming to ice is about one year,ice formation zones are composed of ablation zone and superimposed-ice zone,and the vertical height of superimposed-ice zone is about 60 m or more.The warm ice formation process dominates on the Glacier No.51 at Haxilegen of the Kuytun River,ice formation zones are composed of ablation zone,superimposed-ice zone and percolation zone,and the vertical height of superimposed-ice zone is less than 70 m.Furthermore,higher values of pH and electrical conductivity in snowpits usually occur around ice layers and dust layers,which can be attributed to higher concentration of soluble ions on ice layers,because of the block of ice and the relationship between the elution process of soluble ions and the transfer process of dust.The correlation between pH and electrical conductivity in snowpits on Miaoergou Flat-Topped Glacier in Hami is different from that of pH and electrical conductivity in snowpits on Glacier No.51 at Haxilegen of the Kuytun River,based on the limited data of snowpits in this paper.It is necessary to study in the future.

Key words: stratigraphy profiles, pH, electrical conductivity, Miaoergou Flat-Topped Glacier: Glacier No.51, stratigraphy profiles, pH, electrical conductivity, Miaoergou Flat-Topped Glacier: Glacier No.51

中图分类号:

P343.6

李向应, 丁永建, 刘时银, 李忠勤. 天山哈密庙尔沟平顶冰川和奎屯河哈希勒根51号冰川成冰带与雪层pH值和电导率对比研究[J]. 冰川冻土, 2007, 29(5): 710-716.

LI Xiang-ying, DING Yong-jian, LIU Shi-yin, LI Zhong-qin. A Preliminary Study of the Stratigraphy Profiles,pH and Electrical Conductivity in Snowpits on the Miaoergou Flat-Topped Glacier in Hami and the Glacier No.51 at Haxilegen of the Kuytun River,Tianshan Mountains[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2007, 29(5): 710-716.

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天山哈密庙尔沟平顶冰川和奎屯河哈希勒根51号冰川成冰带与雪层pH值和电导率对比研究

A Preliminary Study of the Stratigraphy Profiles,pH and Electrical Conductivity in Snowpits on the Miaoergou Flat-Topped Glacier in Hami and the Glacier No.51 at Haxilegen of the Kuytun River,Tianshan Mountains

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