Formation Mechanism Of Urban Floods In The Contemporary Global Change And Risk Management Research

Flood disasters are always the focus paid attention to by researchers, which are influenced by both global change and human activities. However urban flood disasters under this background are not researched systematically for a long time. Based on the above reasons, this paper inquires into the above problem and attempts to make a breakthrough. It studies a case from Guangzhou with the principle of theory and practicality combined. First it points out the magnified phenomenon of urban flood under the processes of both global change and urbanization, which would delay urban development of our country. Then in view of systems theory, it researches the forming mechanism of urban flood, which is the basic theory of urban flood disasters studies. And this paper analyzes how the changes of hazard inducing environment, hazard inducing factors, hazard bearing body influence urban flood of Guangzhou. Aimed at the tendency of more and more losses because of urban flood disasters, this paper proposes that we should change flood control to flood risk management, and carry out flood utilization as one of its measures. At last, the author proposes that flood insurance should be first launched in urban areas, which would perfect risk management of urban flood hazard.