Optimization of Water Allocation in Canal Systems of Chengai Irrigation Area

Chengai Yellow River Irrigation Area is situated in Liangshan County, Shandong Province, China. In history, no formalized irrigation regulations exist because of limitations on the project facilities and management capability. The utilization of water resources was unreasonable with serious waste of water and prolonged rotations and low irrigation benefits. Potential benefits have not been realized. With the development of agriculture production, it was considered urgently necessary to carry out research on the optimum water allocation in Chengai Yellow River Irrigation Area using system engineering methodology. Therefore, Based on the principle of system engineering and in accordance with the secondary main canal of the Chengai Yellow Irrigation Area, and taking the maximum irrigation benefits and minimum irrigation rotation as the objectives, the optimal crop pattern and irrigation water allocation models have been developed. Through calculations, the desirable optimal crop pattern and water allocation results were achieved. It proved in practice that the present research play very important role in water saving, irrigation and production improvement, and facilitation of irrigation area scientific management level.(Nature and Science, 2004;2(1):89-94).