Disasters are characterized by strong suddenness, great harm and difficulty in early identification, monitoring and early warning. Since 1950s, at least 22 provinces, municipalities and autonomous regions in China have suffered from different degrees of landslide disasters, which have caused huge casualties and property losses, and directly threatened the safety of major human engineering facilities such as roads, railways, water conservancy, hydropower and mines. therefore

Disasters are characterized by strong suddenness, great harm and difficulty in early identification, monitoring and early warning. Since 1950s, at least 22 provinces, municipalities and autonomous regions in China have suffered from different degrees of landslide disasters, which have caused huge casualties and property losses, and directly threatened the safety of major human engineering facilities such as roads, railways, water conservancy, hydropower and mines. therefore