Design Of Flood Control Decision-making Chain Of Command In Shunde

With the social development ,human being can control and manage the flood more and more .But ,the flood have never reduced . At the same time ,the technology of GIS is used in field of water conservancy more and more .Some departments use it as a tool for analyzing ,decision-making, imitating, and forecasting , which brings much social economic benefit clearly .The technology of GIS is mostly used in the flood information system ,which includes of geographic environment, social economic and engineering means etc. Because there are much information, much emergency ,quick decision, it is asked good ability to deal with data and make speed reflect.in the fact, according to the experience of the developed countries ,it is very difficult to reduce the disaster of flood as lowest as possible only by engineering means .it is neither realistic nor integrant to reduce the disaster of flood only by engineering means . So ,in order to lower the disaster of flood ,it is a good way to use the system of flood detention district ,flood insurance, reestablishment etc. Although there are some flood detention districts in some places in China, no perfect and operational flood hazard risk management decision support system is established now. We are searching some new thought of controlling and managing flood by risk management policy.flood hazard risk management decision support system, FHRMDSS include of geographic environment .social economy and engineering technology with much data .It need to think about many fields during decision-making process. The aim of this study is build a flood decision support system with the flood risk management . This research area is complemented by the development of a GIS application as an integrated tool for the support of management process. This area aims to test and developed specific methodology of treatment of digital data relevant in this kind of study. The Geographic Information Systems (GIS) allows the modulation and simulation of different scenarios and the graphic representation of the different alternatives. In order to present and explain to a non expert public like politicians and the population in the floodplain, multimedia technology will play a valuable role trying to make the decision making process more participated.In this study ,the author try to find a way to establish a new flood hazard risk management decision system by GIS and other technologies ,which will harmonize with the nature rule of the flood Then the system will reduce the hazard of the flood through managing flood correctly and benefit to the human beings .