中文摘要：

川东北地区一直以来都是地质灾害高发地区，地质环境条件脆弱，极端降雨事件频发，是区域地质灾害预警高度关注地区。以2012年6月下旬到7月上旬持续强降雨诱发崩滑流灾害过程为例，通过统计方法，从空间和时间角度，分析地质灾害的空间分布、时间分布与降雨的相关关系，得到该区域降雨诱发地质灾害的规律特点及临界降雨判据。（1）川东北地区的降雨模式常见为数日持续降雨，且降雨中出现数次（2～3日）的极值雨量，在这种降雨模式下，考虑到前期降雨的累积效应，需要着重关注第二次的极值降雨，往往会诱发更大的群发灾害过程，并具有明显的滞后效应，此特点在巴中、达州、广元等地表现得尤为明显，而南充市的即时发灾特点更为明显。（2）川东北地区各市临界雨量不同，在少量前期雨量累计情况下，广安最低，约为25mm；其次是广元，约为50mm；最后是巴中、达州和南充，约为90mm。相关结论可为该地区的区域地质灾害预警研究和实践提供技术支撑。

英文摘要：

Northeast of Sichuan Province is geo-hazard prone area, weak geo-environment conditions, frequency of extreme rainfall event, is highly concerned about the regional geo-hazard warning areas. In this paper, in late June 2012 to early July continuous heavy rainfall-induced landslides process, using statistical methods, to analyze the spatial and temporal distribution correlation between geo-hazards and heavy rainfall, and obtain its inducing features and critical criterion. （1） Northeast of Sichuan province, rainfall patterns are continuous rainfall amounting to several days and about 2-3 days extreme rainfall. In this mode, taking into cumulative effect of antecedent rainfall, we need to focus on second extreme rainfall, often induce greater mass disasters. That is a significant lag effect, which is obvious in Bazhong, Dazhou, Guangyuan and etc, while the instant effect in N anchong city. （2） Critical rainfall are different, the minimum day rainfall in Guang＇ an, about 25mm; followed Guangyuan, about 50mm; finally, Bazhong, Dazhou and Nanchong, about 90mm. Relevant conclusions can be as reference of geo-hazard warning research and practice.