Simulation And Optimization Of The United Water Resources System In The Typical Irrigated Area Of Jianghuai Region

Along with the progress of human society and the rapid development of economy, the water resource problem has become one of the main problems of sustainable development. Agriculture holds the economic lifeline of the country as a major water user. So in the case of shortage of irrigation water, it is of great significance to make it potential, realize the optimal allocation of water resources in the irrigation area and make it play the biggest benefit.Based on different growth mechanism of the crops in irrigation and limited irrigation, this paper expounds the different calculation method of the evapotranspiration of rice. Then the actual water consumption of rice is obtained and incorporated into the water resource model of paddy field. In order to describe the process of water allocation better in the joint water resources system of the irrigation area, using system dynamics combined with the water supply regulation to construct the simulation model of the united water resource system.In the empirical study, this paper is a study of the Caitang irrigation area, and constructing the simulation model of the united water resources of the reservoir, pond and field, which is based on the system dynamics, and discussing the water resources allocation in irrigation area. Finally, optimizing the design parameters and operating parameters of the project by the orthogonal test method. After system optimization, agricultural irrigation reliability is improved, as well as the backbone of the reservoir and ponds water supply capacity, making water resources more fully utilized; thus saving water resource, entering the orbit for the sustainable development of environment and economy.