基于InSAR速率分级的山地蠕滑滑坡水文形变因果响应

doi:10.3799/dqkx.2026.185

基于InSAR速率分级的山地蠕滑滑坡水文形变因果响应

doi: 10.3799/dqkx.2026.185

凌晴¹,
郭琪¹,
刘晓杰¹,
张勤^2, ,,
瞿伟²,
任峻广¹,
杨晨健¹

1. 兰州理工大学土木与水利工程学院, 甘肃兰州 7300502;
2. 长安大学地质工程与测绘学院, 陕西西安 710054

基金项目:

国家自然科学基金(42304048,42174006,42090055)

陕西省杰出青年科学基金(2022JC-18)

详细信息

作者简介:
凌晴(1983-),女,博士,副教授,主要从事滑坡稳定性分析与评价,E-mail:lingqing@chd.edu.cn

通讯作者:
张勤(1958-),女,博士,教授,主要从事空间定位技术理论与方法及地质灾害早期识别与监测预警,E-mail:dczhangq@chd.edu.cn

中图分类号: P642.22
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出版历程
- 收稿日期: 2026-01-26
- 网络出版日期: 2026-08-25

Causality of Hydrological Deformation of Mountain Creep Landslides Based on InSAR Rate Classification

1. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
2. School of Geological Engineering and Geomatics, Chang'an University, Xi'an University 710054, China

摘要

摘要: 澜沧江上游高山深切峡谷区蠕滑滑坡与水文因子之间的因果关联尚不明确，尤其是水文与形变之间是否存在双向因果反馈以及滑坡不同形变等级的响应模式有何差异，缺乏定量研究。本研究基于2020—2023年升轨Sentinel-1A影像，采用SBAS-InSAR技术获取地表形变速率，以此为基础对识别出的活动滑坡开展速率分级评估。进而运用收敛交叉映射（Convergent Cross Mapping，CCM）方法，定量揭示了滑坡形变与降水（TP）及多层土壤湿度（M1～M4）之间的双向因果响应规律。结果表明：在水文影响形变路径上，三类区域对水文因子的敏感性排序一致（M1>M4>M3>M2>TP），但初始响应因子各异；在形变反馈水文路径上，全域均以中层土壤湿度（M3、M2）为主导。基于此，研究提出高速区“表驱-深响”失稳前兆、中速区“快响-强馈”临界联动、稳定区“惰性-衰减”稳定三类典型模式。本研究聚焦区域尺度，揭示水文因子与群发滑坡形变之间的统计因果关系，研究结论适用于区域规律认知，可为该区域滑坡机理认识与风险防控提供理论依据。
- 澜沧江上游 /
- 昌都 /
- SBAS-InSAR /
- 滑坡识别 /
- 速率分级 /
- 因果分析
Abstract: To elucidate the development mechanisms of landslides in the complex environment of the high-mountainous deep-incised valley region in the upper reaches of the Lancang River. This study utilized ascending-track Sentinel-1A images (2020-2023) and applied SBAS-InSAR technology to derive surface deformation velocities. Building upon this, a velocity-based grading assessment was conducted for identified active landslides. Subsequently, the Convergent Cross Mapping (CCM) method was employed to quantitatively reveal the bidirectional causal response patterns between landslide deformation and precipitation (TP) as well as multi-layer soil moisture (M1-M4). Results demonstrate that: Along the pathway of hydrological influence on deformation, three identified zones exhibited the same order of sensitivity to hydrological factors (M1 > M4 > M3 > M2 > TP), while differing in their primary initiating factor. Along the pathway of deformation feedback on hydrology, deformation predominantly impacted mid-layer soil moisture (M3, M2) across all zones. Based on these findings, the study proposes three characteristic instability mechanisms: 1) The “Surficial-Driven and Deep-Response” pre-failure precursor for high-velocity zones, 2) The “Rapid-Response and Strong-Feedback” critical linkage for medium-velocity zones, and 3) The “Inertial-Behaviour and Attenuated-Feedback” stability for stable zones. This research provides a theoretical foundation for understanding landslide mechanisms and guiding risk prevention and control strategies in the region.
- the upper of Lancang river /
- Chamdo /
- SBAS-InSAR /
- identification of landslide /
- rate classification /
- causal analysis

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基于InSAR速率分级的山地蠕滑滑坡水文形变因果响应

doi: 10.3799/dqkx.2026.185

作者简介:
凌晴(1983-),女,博士,副教授,主要从事滑坡稳定性分析与评价,E-mail:lingqing@chd.edu.cn

通讯作者:
张勤(1958-),女,博士,教授,主要从事空间定位技术理论与方法及地质灾害早期识别与监测预警,E-mail:dczhangq@chd.edu.cn

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Causality of Hydrological Deformation of Mountain Creep Landslides Based on InSAR Rate Classification

计量

目录

留言板

基于InSAR速率分级的山地蠕滑滑坡水文形变因果响应

doi: 10.3799/dqkx.2026.185

作者简介: 凌晴(1983-),女,博士,副教授,主要从事滑坡稳定性分析与评价,E-mail:lingqing@chd.edu.cn

通讯作者: 张勤(1958-),女,博士,教授,主要从事空间定位技术理论与方法及地质灾害早期识别与监测预警,E-mail:dczhangq@chd.edu.cn

计量

出版历程

Causality of Hydrological Deformation of Mountain Creep Landslides Based on InSAR Rate Classification

计量

出版历程

目录

作者简介:
凌晴(1983-),女,博士,副教授,主要从事滑坡稳定性分析与评价,E-mail:lingqing@chd.edu.cn

通讯作者:
张勤(1958-),女,博士,教授,主要从事空间定位技术理论与方法及地质灾害早期识别与监测预警,E-mail:dczhangq@chd.edu.cn