Techniques and procedures of applications of the GIS technique in landslide map making

In order to popularize the application of the GIS technique in the present geohazard investigation and assessments, the AreGIS software is used to achieve rapid, urgent map making in the subject “Technical Research in Geohazard Risk Assessments” of the Science and Technology Support Plan of the eleventh Five-Year Plan and the assessments of the bearing capacity of resource and environment for post-hazard reconstruction program in worst-hit areas of the Wenchuan earthquake.. The basic types of landslide risk maps include the landslide documentation map, landslide vulnerability zoning map, landslide danger zoning map and landslide risk zoning map. Based on a description of these map types, the focus is put on the method of modeling by using the AreGIS software and its space data in order to achieve basic information acquisition and processing in the landslide risk map making and use the spatial data modeling tool to carry out rapid landslide map making.