Abstract The risk of landslides, which have been treated in phase Ⅱ and Ⅲ of the Three Gorges project, are increasing because of the cyclical loading and unloading of the Three Gorges reservoir. The reactivated landslides and new landslides would threaten people’s lives and the safety of property. In order to mitigate the risk, remote sensing (RS) and geographic information systems (GIS) technology are used to study the correlation between the distribution of landslides and other factors, such as topography, lithology, faults, water basins and anthropogenic influences. The results show that the elevation, aspect and elevation variation coefficient in topography have higher correlation with the landslides. Moreover, faults have no obvious effect on the quantity of landslides. The spatial distribution of the landslides in the study area is restricted by the combinations of factors. According to the weights of these restrictions, a risk assessment of landslides is carried out.
LI Xue,LI Jinggang,LIU Xiaoli et al. The Spatial Distribution Characteristics and Risk Assessment of Landslides in the Head Region of the Three Gorges Reservoir[J]. jgg, 2016, 36(7): 630-634.
LI Xue,LI Jinggang,LIU Xiaoli et al. The Spatial Distribution Characteristics and Risk Assessment of Landslides in the Head Region of the Three Gorges Reservoir[J]. jgg, 2016, 36(7): 630-634.
