测绘通报 ›› 2025, Vol. 0 ›› Issue (10): 157-162.doi: 10.13474/j.cnki.11-2246.2025.1026

• 技术交流 • 上一篇    

甘肃省内祁连山区域冰川时空变化及其驱动因素分析

景红霞1,2, 刘宇硕3, 李霞1,2,4, 蔡喜琴1,2, 胡晓娟1,2   

  1. 1. 甘肃省基础地理信息中心, 甘肃 兰州 730000;
    2. 甘肃省自然资源卫星应用技术中心, 甘肃 兰州 730000;
    3. 中国科学院西北生态环境资源研究院, 甘肃 兰州 730000;
    4. 兰州大学资源环境学院西部环境教育部重点实验室, 甘肃 兰州 730000
  • 收稿日期:2025-02-24 发布日期:2025-10-31
  • 通讯作者: 刘宇硕。E-mail:1751602511@qq.com
  • 作者简介:景红霞(1980-),女,高级工程师,主要从事方向为遥感技术应用研究。E-mail:116550362@qq.com
  • 基金资助:
    甘肃省水资源基础调查项目(甘资调函〔2024〕41号)

Analysis of spatio-temporal changes and driving factors of glaciers in the Qilian Mountains of Gansu province

JING Hongxia1,2, LIU Yushuo3, LI Xia1,2,4, CAI Xiqin1,2, HU Xiaojuan1,2   

  1. 1. Gansu Geomatic Information Center, Lanzhou 730000, China;
    2. Gansu Natural Resources Satellite Application Technology Center, Lanzhou 730000, China;
    3. Northwest Institute of Ecological Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    4. School of Resources and Environment of Lanzhou University/Key Laboratory of Western Ministry of Environmental Education, Lanzhou 730000, China
  • Received:2025-02-24 Published:2025-10-31

摘要: 针对甘肃省内祁连山冰川变化及影响因素研究尚显不足的问题,本文基于二次冰川编目数据,利用2013、2019及2023年高分辨率遥感影像监测冰川变化,并运用地理探测器分析驱动因素。结果表明:①2006—2023年,冰川数量增加301条,面积缩减105.07km2,年均退缩率为0.83%,且退缩速度持续加快。②规模小、海拔低、地形陡峭、坡度大区域冰川退缩快,西南朝向冰川退缩最快,达21.45%。③气温升高改变热平衡是冰川退缩的关键因素,坡度影响冰川运动、太阳辐射促进消融是主要驱动因素。此外,近年人类活动增加产生的PM10等污染物改变冰川表面物理特性,增强消融过程。为减缓冰川退缩,建议控制排放、降低温度、减少人类污染排放,加强复杂地形地貌区冰川保护。

关键词: 祁连山, 冰川, 时空变化, 驱动因素, 地理探测器

Abstract: Aiming at the problem that the existing research on the changes and influencing factors of glaciers in the Qilian Mountains of Gansu province is insufficient, this paper uses the high-resolution remote sensing images in 2013, 2019 and 2023 to monitor glacier changes based on the second glacier inventory data, and uses the geographic detector to analyze driving factors.The results indicate:①From 2006 to 2023, the number of glaciers increased by 301, the area decreased by 105.07 km2.The average annual retreat rate was 0.83 %, and it continued to accelerate.②In the area with small scale, low altitude and steep terrain, the glacier retreats quickly, and the southwestward glacier retreats the fastest, reaching 21.45%.③The increase of temperature changes the thermal balance, which is the key factor for glacier retreat.Slope affects glacier movement and solar radiation promotes ablation, which is the main driving factor.In addition, pollutants such as PM10 produced by increased human activities in recent years have changed the physical properties of glacier surface and enhanced the ablation process.In order to slow down the glacier retreat, it is recommended to control the discharge of cooling, reduce human pollution emissions, and strengthen the protection of glaciers in complex terrain areas.

Key words: Qilian Mountains, glacier, spatio-temporal changes, driving factors, geographic detector

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