State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, Beijing, 100101, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Sci Rep. 2021 Jan 15;11(1):1635. doi: 10.1038/s41598-021-81212-9.
Globally, a large number of glaciers are retreating due to global warming. Along with climate change, glacial melting has been identified as one of the main triggers of landslide activity in high mountain areas. Evaluations of the triggered mechanism alone do not provide comprehensive insight into the overall impact of glacier accumulation and ablation on landslide-induced denudation. To investigate recent trends, we built landslide and glacier datasets for the HMA using a Landsat time-series covering the past 21 years (1998-2018). Landslides that may have been caused by major earthquakes were identified and removed, leaving an inventory that is used to explore changes that may be related to climate change. Our results show a shift in the frequency-area distribution that indicates an increasing trend of large landslides in the HMA over the last decade. A decline in glacier area is associated with the increase in landslide area.
从全球范围来看，由于全球变暖，大量的冰川正在消退。随着气候变化，冰川融化已被确定为高山地区滑坡活动的主要触发因素之一。仅对触发机制进行评估，无法全面了解冰川积累和消融对滑坡剥蚀的总体影响。为了研究近期的趋势，我们利用过去 21 年（1998-2018 年）的 Landsat 时间序列构建了高山区的滑坡和冰川数据集。我们识别并去除了可能由大地震引发的滑坡，留下了一个清单，用于探索可能与气候变化有关的变化。我们的研究结果表明，频率-面积分布发生了变化，这表明过去十年中高山区大型滑坡的发生率呈上升趋势。冰川面积的减少与滑坡面积的增加有关。
