A flooding control Data Base System （FCDBS） for the Lower Yongding River is described with respect to its purposes

components

functions

characters and system design and implementation in this paper. The system is a microcomputer-based one with functions of data storage

updating

retrivial

display

and mapping. The data in FCDBS consist of flooding control projects

barriers for river flooding

dangereous situation of flooding

materials for emergency

plances of dyke burst and so on. The system is a very useful tool for flooding control and routine management of the river.