【摘要】 根据1989～2002年云南省滑坡、泥石流调查资料,在单因素分析的基础上,确定地形、岩土体类型、降雨、地震、活动断裂、气候带和植被覆盖率共7个因素是云南省影响滑坡泥石流的主要自然因素。通过R-型因子分析、逐步回归分析和灰色关联度分析,得出对滑坡影响程度由大到小的因子排序是:海拔和高差、地形坡度、地震、活动断裂、岩组、降雨量;对泥石流影响程度由大到小的因子排序是:活动断裂、海拔和高差、岩组、降雨量、地震。更多还原

【Abstract】 The survey data of landslides and debris flows from 1989 to 2002 in Yunnan Province indicate that the activities of landslides and debris flows are mainly affected by the natural factors such as landform, lithology, rainfall, earthquake, active fault, climate zone and vegetation. Thoes natural factors are analyzing by R-factor analysis, stepwise regression and degree of association (gray system theory). The results shows that altitude and height is the most important factor to landslide, then is slope, earthquake, active fault, lithology and rainfall. Active fault takes the first place to debris flows, the next is altitude and height difference, lithology, earthquake and rainfall.更多还原