| 蔡佳明,陈鑫,朱秋萍,徐红涛,崔萌.基于地理探测器的燕山过渡带斜坡地质灾害驱动因素研究[J].矿产勘查,2025,16(6):1506-1514 |
| 基于地理探测器的燕山过渡带斜坡地质灾害驱动因素研究 |
| Study on driving factors of geological disasters of Yanshan transition belt based on Geodetector |
| 投稿时间：2024-05-13 |
| DOI：10.20008/j.kckc.202506019 |
| 中文关键词: 山区—平原过渡带 地质灾害 驱动因素 地理探测器 |
| 英文关键词: mountain area-plain transition zone geological hazards driving factors Geodetector |
| 基金项目:本文受北京师范大学环境演变与自然灾害教育部重点实验室开放课题(2024-KF-12)资助。 |
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| 中文摘要: |
| 燕山山地—华北平原过渡带的自然背景及人类活动形成脆弱的表生环境，导致汛期突发地质灾害频发，严重制约区域经济发展并造成地质安全隐患。为揭示斜坡地质灾害内在驱动力，本文基于地质灾害隐患调查数据及地理探测器模型方法，选取高程、高差、坡度、坡向、地形湿度指数、地表粗糙指数、归一化植被指数、岩组类型、水系距离、构造距离、降雨、道路距离共 12个因子，对斜坡地质灾害宏观驱动因素分析，结果表明:研究区斜坡地质灾害呈现自东北至西南递减分布趋势，对灾害分布解释力最强的因子为降雨、高程、岩组类型，分别为 27.4%、14.2%、8.5%，降雨是最主要的诱发因子，随降雨量升高，斜坡地质灾害发育数量显著增加；各因子两两交互作用对斜坡灾害的解释力均增强，降雨与岩组类型、降雨与道路距离、降雨与高程的交互解释力分别达 32.3%、31.9%、31.7%；在山区道路沿线局部尺度，距道路距离的影响同样重要，研究可为相近区域地质灾害防治提供依据。 |
| 英文摘要: |
| The natural background environments and human activities in the transition zone between the Yan.shan Mountains and the North China Plain have created a fragile surface environment, resulting in frequent sudden geological disasters during the flood season. These geological hazards significantly hinder regional economic devel.opment and pose substantial geological safety risks. To uncover the intrinsic driving forces of slope-related geologi.cal hazards, this study utilizes geological hazard risk survey data and the geodetector model to analyze the drivingfactors of slope geological hazards. This analysis considers 12 environmental factors including elevation, topo.graphic undulation, slope, aspect, topographic wetness index, terrain ruggedness index, normalized differnce vegeta.tion index, rock group type, distance to river system, distance to geological structures, rainfall, and distance toroads. The results revealed that slope geological hazards in the study area follow a decreasing distribution trend fromnortheast to southwest. Overall, rainfall as the most influential factor, explaining 27.4% of the hazard distribution.As rainfall increases, the occurrence of slope geological hazards rises significantly. Elevation and rock group typeshowed less explanatory power, accounting for 14.2% and 8.5%, respectively. Furthermore, the interaction betweenany two factors enhances the explanatory power for slope geological hazards, with the interactions between rainfalland rock type, rainfall and distance to roads, rainfall and elevation explaining 32.3%, 31.9% and 31.7%, respec.tively. At a local scale along mountain roads, the distance to roads also proves to be a critical factor. This study pro.vides valuable insights into the prevention and management of geological hazards in similar regions. |
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