黔西北崩塌滑坡的发育分布规律

Studies of Landslides in Northwestern Guizhou

通过对展示在研究区内686个崩塌、948个滑坡的分析，总结出崩塌、滑坡的发育规律。指出软硬地层叠覆带、断裂带、开阔褶皱翼部、不同方向褶皱接合部、平行褶皱轴向的地面切割等是崩塌、滑坡易发部位，并讨论其敏感性。在此基础上，进一步阐述崩塌、滑坡的区域分布规律，提出是地势坡折带左右了崩塌、滑坡的分布，最后推测贵州的另一个崩塌、滑坡高频带是地势上第二级与第三级阶梯面的地势坡折带。

The studies of 948 landslides and 686 avalanches (rockfalls) which occurred innorthwestern Guizhou reveal that landslides develop usually in such areas as soil and rock mixtures,fractured and faulted zones, wings of broad folds, conjunctures of variously-orientated folds, andtopographies dissected parallel to fold axes as well. Moreover, a conclusion is drawn that topographicalbreaks, in particular, those on second- and third-order tread, are susceptible to landslides.