摘要
The mountain area of the Southern Ningxia’s landscape is mainly composed of the loess hill.And such a special geological structure creates a wide range of development of loess landslides.Based on the large amount of data obtained from the county zoning geological hazard investigation,the paper studies the geological environment condition and features of loess landslides through statistical analysis,and summarizes it into two different types,which is gravity unloading and earthquake damage.Furthermore,the paper analyzes and researches on its formation mechanism,and reaches to the conclusion of key points against the mountain area of the Southern Ningxia loess landslides.