祁连山多年冻土区斜坡热喀斯特（hillslope thermokarst）数据集（2000-2020）

祁连山位于青藏高原东北边缘，由于气候变暖和人类活动干扰的影响，其下的多年冻土面临着急剧退化。与此同时热融滑塌、融冻泥流、活动层滑脱、热融冲沟等一系列的斜坡热喀斯特（hillslope thermokarst）灾害也在逐年增加，对当地生态、经济、工程和人类安全造成巨大破坏。但目前缺少对于祁连山区域的冻融诱发斜坡失稳的灾害调查，为了获得第一份祁连山斜坡热喀斯特（hillslope thermokarst）清单，我们对祁连山范围内的多源遥感数据进行多次目视解译的同时，通过多次野外调查对解译结果进行验证和修改，最终确定并勾绘出1064处热喀斯特山坡灾害，面积近20平方公里。本研究成果将为灾害损失的定量评估，并进一步探索其具体成因和潜在过程和更好的预测未来易发生热喀斯特山坡的地区提供基础数据支持。

The Qilian Mountains are located at the northeastern edge of the Tibetan Plateau. Affected by climate warming and anthropogenic disturbances, the permafrost beneath them is undergoing rapid degradation. Meanwhile, a series of hillslope thermokarst disasters including thermokarst slumps, thaw mudflows, active layer detachments and thermokarst gullies are increasing year by year, causing enormous damage to local ecology, economy, engineering infrastructure and human safety. However, there is currently a lack of disaster surveys on freeze-thaw induced slope instability in the Qilian Mountains region. To compile the first inventory of hillslope thermokarst in the Qilian Mountains, we conducted repeated visual interpretation on multi-source remote sensing data within the Qilian Mountains range, and validated and revised the interpretation results through multiple field surveys. Finally, we identified and delineated 1,064 hillslope thermokarst disasters, covering an area of nearly 20 square kilometers. The findings of this study will provide fundamental data support for quantitative assessment of disaster losses, further exploration of their specific causes and underlying processes, and better prediction of areas prone to hillslope thermokarst in the future.

搜集汇总

背景与挑战

背景概述

该数据集提供了祁连山多年冻土区2000-2020年间斜坡热喀斯特灾害的详细清单，包括1064处灾害点位和近20平方公里的灾害面积，数据以shp格式存储，可通过ArcGIS等软件读取。数据集旨在支持灾害损失评估、成因研究和未来灾害预测，适用于冰冻圈、冻土、冻融灾害等领域的研究。