Design and Implmentation of Major Modules of Urban Disaster Prevention Information Management System Based on GIS;

the paper discuss the basic notions of "disaster" ,"urban disaster" , "urban disaster prevention" , "urban comprehensive disaster prevention" , "urban disaster prevention plan" and "urban comprehensive disaster prevention plan".

Urban disaster prevention is an important aspect to evaluate the whole-function of urban, it is the most important and actual method to construct urban disaster prevention space system for us to make full use of urban open space.

We should realize that the research of urban disaster-prevention should not only focus on re-verifying and drawing new building disaster-prevention standards,but also on the limitation of urban space planning,the relation between distribution of different urban function system and disaster environment.

As the improvement of urbanization, complication of urban function, expanding of population, disorder of eco-balance, slow developing of traffic infrastructure, natural and artificial intrusion for city made urban disaster-prevention (especially in .

On the other hand, our urban disaster-prevention space system planning is separated in several mono-disaster prevention planning.

Planning for urban green space system and establishing a calamity-prevention city with flexible structure;

On the developmental orientation of Urban Disaster Prevention based on its developmental significance;

Research of intelligent DSS of city defending and salvaging for disaster;