Practice of establishing China's Geo-Hazard Survey Information System

摘要

On the basis of the geo-hazards survey on seven hundred counties in China,with each county asa unit,a Geo-Hazard Survey Information System was developed. This system gathers national geo-hazard surveyinformation and provides the functions of statistical and analysis assessment. The system contains a foundationalgeo-hazard database which is the most complete in the country. The database includes geo-hazard informationsuch as landslides,rockfalls,debris flows,ground fissure and unstable slope. The amount of foundational surveyinformation of geo-hazard locations and hidden danger spots in the database is more than 10,000. Therefore,this system can reduce the geo-hazard loss as much as possible by finding out the current situation and thedevelopment trend,by assessing the situation of geo-hazard and danger,by identifying the susceptible regionsand the dangerous region,and hence by suggesting the prevention plans and arrangements.