干旱区研究

• 水土资源 • 上一篇    下一篇

中国大陆型冰川和海洋型冰川变化比较分析——以天山乌鲁木齐河源1号冰川和玉龙雪山白水河1号冰川为例

 李开明1,陈世峰1,康玲芬1,李忠勤1,2,李生德1,文强1   

  1. (1. 兰州城市学院地理与城乡规划学院,甘肃 兰州 730070;2. 中国科学院西北生态环境资源研究院,甘肃 兰州 730000)
  • 收稿日期:2017-02-27 修回日期:2017-06-08 出版日期:2018-01-15 发布日期:2018-02-06
  • 作者简介:李开明(1974-),男,博士,主要研究寒旱区水资源及冰川变化. E-mail: lkm_wd@126.com
  • 基金资助:

    国家自然科学基金(41661014);兰州城市学院博士科研启动基金(LZCU-BS2013-06)和兰州城市学院第四届“挑战杯”大学生课外学术科技作品竞赛资助

Comparative research on Chinese continental glacier and temperate glacier changes:Taking Urumqi glacier No.1 and Baishui glacier No.1 as example

Li Kai-ming1,  Chen Shi-feng1, Kang Lin-fen1, Li Zhong-qin1,2, Li Sheng-de1, Wen Qiang1   

  1. (1. School of Geography and Urban-rural Planning, Lanzhou City University, Lanzhou 730070, Gansu, China;2. Northwest Institute of Eco-Environment and Resources, CAS, Lanzhou, 730000, Gansu, China)
  • Received:2017-02-27 Revised:2017-06-08 Online:2018-01-15 Published:2018-02-06

摘要: 以天山乌鲁木齐河源1号冰川和玉龙雪山白水河1号冰川为例,比较分析了全球变暖背景下中国大陆型冰川和海洋型冰川自20世纪中期以来的变化。结果表明:物质平衡亏损、平衡线高度上升、活动层温度升高、厚度减薄、运动速度降低、末端退缩、面积和冰储量减少是两类冰川的主要变化趋势;大陆型冰川变率有加大或者大于海洋型冰川的表现,并且两类冰川的变化幅度差距有逐渐缩小或趋稳的迹象。进一步分析认为:两类冰川消融退缩的主要原因是气温上升,重要因素是冰面反照率降低,而气候环境、响应气候变化的敏感性、加速消融机理等差异,是造成两者变化差异性的主要原因。

关键词: 冰川变化, 大陆型冰川, 海洋型冰川, 物质平衡, 冰川厚度, 乌鲁木齐河源1号冰川, 玉龙雪山白水河1号冰川

Abstract: There are great scientific significances and realistic values by comparative researching on continental glacier and temperate glacier change. As an indicator of climate change, studying different types of glaciers’ change has attracted researcher’s attention for a long time past. In this paper, taking Urumqi river glacier No.1 and Yulong mountain Baishui river glacier No.1 as example, continental glacier and temperate glacier changes are comparative studied under global warming since 1950s. The results show that mass loss, equilibrium-line altitude ascending, activity layer temperature rising, glacier depth thinning, flow velocity slowing, terminus retreating, area and volume reducing are the major trends of two type glacier change. The change rates of continental glacier increased or greater than temperate glacier, and the change gaps of two type glacier have been gradually reduced or stabilized. Further analysis shows that the main reason of the ablation and retreat of two type glacier is the rise of temperature, an important factor is the reducing of the ice-surface albedo, and the differences between two type glaciers is because of the climatic environment, the sensitivity of response to climate change, and the mechanism of accelerated ablation, and others.

Key words:  Glacier change, continental-glacier, temperate-glacier, mass balance, glacier depth, Urumqi river glacier No.1, Yulong mountain Baishui river glacier No.1