TYPES AND HIERARCHICAL KNOWLEDGE OF LANDSLIDE RISKS

Landslide risk research has target and hierarchy,not limited in one form and content. Current landslide risk research is scarce in the type classification and hierarchy comparison. Furthermore,its application range is unclear,too. With the landslide risk research development,its necessary to study the landslide risk research types and definitions based on the former studies. The results will be convenient for standardizing the contents and forms of landslide risk research. According to target classification method,here,landslide risk research is classified into five types: landslide risk appraisal and zoning,risk analysis,risk probability,risk assessment and risk management. Based on internal relationship among landslide risk types,hierarchical knowledge and practical application method are established. Among different landslide risk types,there is a hierarchical knowledge relationship. Although different levels have different functions,they support each other．