Formation and evolution of thermokarst landslides in the Qinghai-Tibet Plateau, China
文献类型：期刊论文
| 作者 | Wei, Tao2,3; Wang, Hao2; Cui, Peng2,3,4; Wang, Yan1; Zhang, Bo2; Wei, Rui-Long2,3; Liu, Zhen-Xing1,3; Li, Chao-Yue1,3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 954页码:16 |
| 关键词 | Landslide Climate warming Permafrost degradation Active layer detachment Retrogressive thaw slump |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.176557 |
| 产权排序 | 4 |
| 英文摘要 | Thermokarst landslide (TL) activity in the Qinghai-Tibet Plateau (QTP) is intensifying due to climate warminginduced permafrost degradation. However, the mechanisms driving landslide formation and evolution remain poorly understood. This study investigates the spatial distribution, annual frequency, and monthly dynamics of TLs along the Qinghai-Tibet engineering corridor (QTEC), in conjunction with in-situ temperature and rainfall observations, to elucidate the interplay between warming, permafrost degradation, and landslide activity. Through the analysis of high-resolution satellite imagery and field surveys, we identified 1298 landslides along the QTEC between 2016 and 2022, with an additional 386 landslides recorded in a typical landslide-prone subarea. In 2016, 621 new active-layer detachments (ALDs) were identified, 1.3 times the total historical record. This surge aligned with unprecedented mean annual and August temperatures. The ALDs emerged primarily between late August and early September, coinciding with maximum thaw depth. From 2016 to 2022, 97.8 % of these ALDs evolved into retrogressive thaw slumps (RTSs), identified as active landslides. Landslides typically occur in alpine meadows at moderate altitudes and on gentle northward slopes. The thick ice layer near the permafrost table serves as the material basis for ALD occurrence. Abnormally high temperature significantly increased the active layer thickness (ALT), resulting in melting of the ice layer and formation of a thawed interlayer, which was the direct causing factor for ALD. By altering the local material, micro-topography, and thermal conditions, ALD activity significantly increases RTS susceptibility. Understanding the mechanisms of ALD formation and evolution into RTS provides a theoretical foundation for infrastructure development and disaster mitigation in extreme environments. |
| WOS关键词 | RETROGRESSIVE THAW SLUMPS ; LAYER DETACHMENT FAILURES ; CLIMATE-CHANGE ; CONTINUOUS PERMAFROST ; MOUNTAINS |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0906] ; National Natural Science Foundation of China[41941017] ; National Natural Science Foundation of China[42101088] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001333369300001 |
| 出版者 | ELSEVIER |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/210008]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Wang, Hao |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, State Key Lab Mt Hazards & Engn Safety, Chengdu 610299, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan |
| 推荐引用方式 GB/T 7714 | Wei, Tao,Wang, Hao,Cui, Peng,et al. Formation and evolution of thermokarst landslides in the Qinghai-Tibet Plateau, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,954:16. |
| APA | Wei, Tao.,Wang, Hao.,Cui, Peng.,Wang, Yan.,Zhang, Bo.,...&Li, Chao-Yue.(2024).Formation and evolution of thermokarst landslides in the Qinghai-Tibet Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,954,16. |
| MLA | Wei, Tao,et al."Formation and evolution of thermokarst landslides in the Qinghai-Tibet Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 954(2024):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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