【摘要】 探讨汶川地震诱发地质灾害的发育分布特征。利用航空影像对青川县红石河区域进行遥感解译,并结合汶川地震前研究区地质灾害调查数据进行对比分析。在193km2的范围内共解译地质灾害712处,其中,滑坡209处,崩塌486处,泥石流17处,地质灾害发育密度达到了3.7km-2。汶川地震诱发的地质灾害具有明显的断层上下盘效应、坡度效应、灾害链效应及高密度发育的特点。更多还原

【Abstract】 This paper makes an approach to the distribution characteristics of the geo-hazards induced by the Wenchuan earthquake and uses the aerial photos to interpret the geo-hazards in the Hongshi river basin of Qingchuan County,Sichuan.It is found that there are 712 geo-hazards in the area of 193 km2,including 209 landslides,486 rock falls,and 17 debris flows.The density of the geo-hazards amount to 3.7 km-2.Compared with the geo-hazards before the earthquake,the distribution of the earthquake-induced geo-hazards has obvious hanging wall footwall effects,topography effects,disaster-chain effects,and high density characteristics.更多还原