中文摘要：

通过福建省重大灾难性地质灾害的历史资料归整、野外核查分析,总结灾害特征及影响作用因素,简要剖析成灾机理,以期为福建地质灾害防治提供指导。福建重大地质灾害特征包括时空分布集中、规模小危害重、滑坡泥石流灾害链形式及快速冲击效应等。其主要影响因素包括人类活动改造的局部汇水横纵坡形等微地貌、岩浆岩浅表层松散孔隙岩土体及罕见强降雨,表现为持续强降雨及地表水入渗软弱岩土体结构面,形成高孔隙水压及渗流动水压力形成滑坡泥石流灾害。

英文摘要：

Based on the data collection and investigation of the major catastrophic geological disaster in Fujian province,the characteristics are summarized for concentration of distribution in time and space,fast shock effect,small scale with heavily damage,and chain form of landslid-debris flow. Meanwhile,the main influence factors are identified by the local micro-topography and loose shallow soil with human activity,and rare heavy rainfall. The cause of geo-disaster is concluded by the formation of high pore pressure and seepage flow pressure for the continued rainfall and surface water infiltration of soft rock structural plane.