ArcGIS-based evaluation of geo-hazards at Yaozhou County, Shaanxi, China

In conventional susceptibility evaluation of geo-hazards, there are some limits, such as unreasonable division of evaluated region, difficulty in quantifying evaluation indicators, time-consuming calculation. To address these problems, we try to employ the software ArcGIS to evaluate geo-hazards susceptibility. The study area of Yaozhou County is automatically divided into 3562 units. Based on the spatial overlay analysis function of ArcGIS, quantitative evaluation of geo-hazards susceptibility is implemented in the study area, and the geo-hazards susceptibility zoning is mapped. It is observed that the evaluation results match well with field investigations.