摘要
该滑坡泥石流特征为,流域面积小,流程短,规模小,以坡面型为主,多由滑坡崩塌转化而来,发生频率低,突发性强,危害大。文章揭示在植被覆盖的花岗岩地区,持续强降雨引发群发性浅层土质滑坡,在斜坡微凹处或小沟谷,易转化成泥石流,形成灾害链。对该类型滑坡泥石流特征及成因进行分析,为福建省乃至全国同类型滑坡-泥石流的防治提供经验。
The landslide and debris-flow is characterized by small basin area,short process,small-scale,slope-based,transformed from collapses and landslides,occurrence of low frequency,suddenness,and great harm.The Article reveals continuous heavy rainfalls tend to cause mass slides of shallow soil in granite areas with rich vegetation,which are easily changed into mudslides in slope dimples or small valleys.The analyses of the characteristics and causes provides experience for preventing the landslide debris flows of this type in Fujian even the country.
出处
《地质灾害与环境保护》
2014年第4期20-25,共6页
Journal of Geological Hazards and Environment Preservation
基金
福建省广义地质工作项目--福建省重大灾情地质灾害研究(20111201)
关键词
滑坡
泥石流
特征
成因
南平市
Landslide
debris flow
features
causes
Nanping
