在防洪减灾方面，要从无序、无节制地与洪水争地转变为有序、可持续地与洪水协调共处。为此，要从以建设防洪工程体系为主的战略转变为：在防洪工程体系的基础上，建成全面的防洪减灾工作体系，达到人与洪水协调共处。１ 对洪水和洪灾的认识 要认识到，江河洪水是一种自然现象 In the aspect of flood control and disaster reduction, we should shift from disorderly and unrestrainedly to fight floods in an orderly and sustainably coordinated manner with floods. To this end, from the construction of flood control system-based strategy into: on the basis of the flood control system, build a comprehensive flood control and disaster reduction system to achieve co-existence between man and flood. 1 Understanding Floods and Floods It is important to recognize that river floods are a natural phenomenon