Topographic primacy in rock glacier distribution revealed by GAMs and their water storage: Insights from a new polygonised inventory of the southeastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Fu, Ping6; Xu, Shuyang5; Jia, Tian4,6; Zhan, Yang3; Zhang, Qian2; Li, Yingkui1 |
| 刊名 | CATENA
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 265页码:109908 |
| 关键词 | Rock glacier Environmental factors Generalized additive model Relief FVC SE Tibetan plateau |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2026.109908 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Rock glaciers constitute essential freshwater reservoirs in high-mountain regions. Despite their hydrological and ecological importance, few studies have been conducted in the southeastern Tibetan Plateau. Existing research exploring their drivers and predicting their distribution has been limited due to historically restricted datasets and the application of a limited number of drivers. We mapped 9543 rock glaciers and comprehensively analysed their spatial distribution against an extensive suite of environmental variables by leveraging emerging global and regional datasets. The rock glaciers in this area have distinct morphometric characteristics (mean length = 601 m; area = 0.1 km2; elevation = 4558 m a.s.l.; slope = 20.8 degrees) and show predominant N-NW aspect orientation. They present on certain climatic conditions (mean annual temperature = -3.2 degrees C; annual precipitation = 769 mm; mean annual ground temperature = 0.9 degrees C; annual snow duration = 227 days; snow index = 22.1). Generalized additive modelling combining factors from multiple environmental categories demonstrated superior performance, indicating complex controls on rock glacier formation. Our analyses reveal that while climatic and cryospheric factors exhibit strong correlations, topographic variables, particularly relief, serve as more robust predictors of rock glacier distribution. Hydrologically, these features store 0.3-0.8 times the water equivalent of modern glaciers, highlighting their importance for regional water storage and downstream supply. Observed vegetation expansion at lower elevations suggests ongoing periglacial stabilization, a process projected to intensify with climate warming. These findings emphasize the critical need for systematic monitoring of rock glaciers as both climate-sensitive indicators and vital components of mountain water cycles. |
| URL标识 | 查看原文 |
| WOS关键词 | SHALULI SHAN ; ANDES ; CLASSIFICATION ; PERMAFROST ; MOUNTAINS ; HOLOCENE ; CLIMATE ; WESTERN ; VARIABILITY ; EVOLUTION |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001692269200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220882]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Fu, Ping |
| 作者单位 | 1.Univ Tennessee, Dept Geog & Sustainabil, Knoxville, TN 37996 USA 2.Shandong Normal Univ, Coll Geog & Environm, Jinan 250358, Peoples R China; 3.Imperial Coll London, Dept Earth Sci & Engn, London SW7 2AZ, England; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China; 5.Wenzhou Kean Univ, Coll Sci Math & Technol, Dept Environm Sci, Wenzhou 325060, Peoples R China; 6.Univ Nottingham Ningbo China, Fac Sci & Engn, Ningbo 315100, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Fu, Ping,Xu, Shuyang,Jia, Tian,et al. Topographic primacy in rock glacier distribution revealed by GAMs and their water storage: Insights from a new polygonised inventory of the southeastern Tibetan Plateau[J]. CATENA,2026,265:109908. |
| APA | Fu, Ping,Xu, Shuyang,Jia, Tian,Zhan, Yang,Zhang, Qian,&Li, Yingkui.(2026).Topographic primacy in rock glacier distribution revealed by GAMs and their water storage: Insights from a new polygonised inventory of the southeastern Tibetan Plateau.CATENA,265,109908. |
| MLA | Fu, Ping,et al."Topographic primacy in rock glacier distribution revealed by GAMs and their water storage: Insights from a new polygonised inventory of the southeastern Tibetan Plateau".CATENA 265(2026):109908. |
入库方式： OAI收割
来源：地理科学与资源研究所
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