Study On The Development Of Mathematical Model And It's Application On The Distribution Of Water Quantity About Gan-jiang River

Along with the steady socio-economic development, water resources is also increasing demanded. However, on the one hand, the shortage of water resources are Serious; On the other hand, the waste of water resources has not been well controlled. As a result, China's water policy and philosophy are carrying out much adjustment, it is changing from the project to the resources and from traditional water to the sustainable development of water. Water rights system is imperative. Gan Jiang is the largest rivers in Jiangxi Province, and its water resources management and the allocation of water plays a vital role to the whole of the water resources development and utilization of Jiangxi Province. With the increasing development of computer technology and the improvement of database systems, which give a good platform and methods for the initial distribution of water research, mathematical model is helpful to improve the efficiency and effectiveness of the use of water resources.The author has analyzed Gan Jiang River Basin's basic data and established the principles of water distribution, determined the reference year of water distribution and the program categories, then the author analyzed the results of fixed predictive control method, the right to re-classification method, AHP method (Optimization AHP) And other methods in the Gan Jiang River Basin water distribution, after that, the author compared the results. By Microsoft Visual Basic 6.0 and Access database development platform, the author designed mathematical model of water distribution, it's useful.This article analyzed the current distribution of water resources research and significance of the research, and then introduced the Gan Jiang Basin's water resources, made the basic principles. The author used the weight classification method, AHP method in the initial distribution of water basins, at last the author used Visual Basic 6.0 and Access database to design a mathematical model of water distribution. Through the mathematical model's calculation and evaluation, we can analysis that if water distribution is right or not. This article introduced the theory of design and organizational structure, as well as some important features of the module. Finally, the author told us how to use the system and gave a summary for the research and pointed out the direction for future research.