Abstract
In this study, we obtained a regional landslide database of Jiyuan City based on the high-resolution remote sensing images of Google Earth platform. As a result, 605 landslides were identified, with a total area of 24.53 km2. Based on the GIS platform, the landslide number density (LND) and landslide area percentage (LAP) were used to statistically analyze the spatial distribution of landslides in the study area. Elevation, slope, aspect, curvature, drainage and stratum were selected as the influencing factors. The results show that the elevation interval where landslides are most likely to occur is 399–650 m. The slope most prone to landsliding is 44.6°–70.6°. The landslides with high frequency appear on the slope facing northwest. Slopes with curvature between −1–0 and 0–1 have relatively high landslide frequency, but no indication that whether on concave or convex. The water system in the entire study area has less impact on landslides. Landslides are most likely to occur in Neogene and Paleogene (N + E) strata, while the number of landslides in the Permian (P) stratum is the highest, which means a high incidence. The results can provide a scientific basis for landslide hazard prevention and mitigation in the study area, and also for other regions.
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