近30年来乌鲁木齐河流域冰川波动特征与流域高山带升温幅度的估算

doi:10.11867/j.issn.1001-8166.1999.03.0279

地球科学进展 ›› 1999, Vol. 14 ›› Issue (3): 279 -285. doi: 10.11867/j.issn.1001-8166.1999.03.0279

刘时银 ^①,王宁练 ^①,丁永建 ^①,谢自楚 ^②

①中国科学院兰州冰川冻土研究所,甘肃兰州 730000;②湖南师范大学资源与环境系,湖南长沙 410081

收稿日期:1998-08-10 修回日期:1998-10-26 出版日期:1999-06-01
通讯作者: 刘时银,男,1963年4月出生,副研究员,主要从事冰川学方面的研究。
基金资助:
中科院“九五”项目“西部冰川资源变化及其对社会经济发展的影响”(编号:KZ951-B1-212)、国家自然科学基金项目“高亚洲冰川物质平衡对气候变化的响应及对水资源的影响”(编号:49571018)、中科院“九五”项目“青藏高原环境变化与区域可持续发展”之专题“冰川冻土与气候间的相互作用”(编号:KZ951-A1-204-03-04)及中科院“冰冻圈动态变化基础研究”专项基金联合资助。

ON THE CHARACTERISTICS OF GLACIER FLUCTUATIONS DURING THE LAST30YEARS IN URUMQI RIVER BASIN AND THE ESTIMATION OF TEMPERATURE RISE IN THE HIGH MOUNTAIN AREA

LIU Shiyin ^①, WANG Ninglian ^①, DING Yongjian ^①, XIE Zichu ^②

①Lanzhou Institute of Glaciology and Geocryology,Lanzhou730000,China;②Department of Resource and Environment,Hunan Normal University,Changsha 410081,China

Received:1998-08-10 Revised:1998-10-26 Online:1999-06-01 Published:1999-06-01

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乌鲁木齐河流域典型冰川与全流域其他冰川波动的监测结果表明,50年代末与60年代初以来,各冰川均处于全面退缩状态,且冰川长度退缩量、面积和冰储量减小量与冰川的规模有密切的关系,大冰川退缩量大,但退缩量所占百分比较小,小冰川则相反,而且三者与冰川的长度等级有较好的统计关系。在区域上有更多的冰川波动资料时,可以通过优化这种统计关系用于推断无观测资料冰川在过去数十年中的波动情况,为评估区域冰川资源变化提供快捷的方法。计算说明,流域冰川全面退缩量值相当于乌鲁木齐河流域高山带在过去30年中气温升高了0.35±0.27℃。

关键词: 乌鲁木齐河流域, 冰川波动, 升温幅度

Based on field observations and repeated photogrammetry, representative glacier and all the other glaciers in the Urumqi River basin have experienced definite shrinkage since the end of 1950s and the beginning of 1960s. It' s found that the decreases in length, area and ice volume of glaciers show a close relationship with their dimensions, that is, the larger the glaciers, the bigger their retreats and vise versa.
Analysis indicates that statistical relations can be established for the absolute and relative changes in length, area and volume of glaciers against with their lengths, which can be adapted to glaciers in other mountainous regions, if we conduct some supplementary measurements of glacier fluctuations. With this concept, an evaluation can be made for glacier fluctuations in a regional scale. Further calculation demonstrates that glacier shrinkage in the last 30 years corresponded to an air temperature rise of about 0.35±0.27℃in the high mountain region of the Urumqi River.

Key words: Urumqi River Basin, Glacier fluctuation, Air temperature rise.

中图分类号:

P343.62

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[1]	杨保. 青藏高原地区过去2000年来的气候变化[J]. 地球科学进展, 2003, 18(2): 285-291.

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