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岷江上游地处我国著名的南北向地震带的中段 ,因其特定的地质环境导致区内表生地质灾害极为严重。通过对岷江上游 (汶川以上 )河段的崩塌、滑坡、泥石流等表生地质灾害的调查研究 ,其分布沿岷江两岸具有明显的分段特征与河谷地貌分段基本一致 ,它们形成发展与特定地形地貌、易崩滑或软弱地层、特殊的构造部位、降雨等密切相关
The upper reaches of the Minjiang River are located in the middle of the famous north-south seismic belt in our country. Due to the specific geological environment, the geological disasters in the area are extremely serious. Through the investigation and study of surface geological disasters such as landslide, landslide and debris flow in the upper reaches of the Minjiang River (above Wenchuan), the distribution is basically consistent with that of the river valley and geomorphology along both sides of the Minjiang River, which forms the basis for the development and specific topography Landforms, landslides or weak formations, special tectonic positions, rainfall, etc. are closely related