| Water resources optimum allocation is a significant research field in water resources development and utilization. Lots of achievements on this field have been made in China. Inter-basin water diversion project is an effective way to settle the uneven regional distribution of water resources. The east-route project is a very important part of the South-to-North Water Transfer Project in our country. To allocate the water resources optimally can alleviate the water shortage of the water receiving areas and accelerate the local economic development. Based on the study of its characteristics, this thesis focuses on the research of the water resources optimal allocation of Shandong Province in the east-route of the South-to-North Water Transfer Project, and a real-time operation system of water resources optimal allocation have also been found in this thesis. The main contents and conclusions are as follows:(1) The water sources of the receiving areas of the South-to-North Water Transfer Project in Shandong Province include the local water, the conducting Yellow River water and the conducting Yangtze River water, which is a regulation problem of multi-source, multi-purpose and multi-condition. With the generalization of water resources system, this thesis puts forward a multiple objective optimal allocation of water resources model. With the corporation of large-scale system decomposition and coordination theory and genetic algorithm, the solution of complex systematic water resources in multi-source, multi-user and multi-purpose optimal disposition model can be solved better.(2) Based on the basic meaning of ecological water demand, the minimum ecological water requirements in river was researched. Then the hydrology and river topography analysis method for minimum abiotic water demand, minimum biological space requirements method for minimum ecological water demand and the appropriate ecological flow estimate method was analyzed too. According to the real conditions of river reaches and planning standards, the critical ecological water requirements had assessed integratedly.(3) Using the four-point implicit scheme method proposed by Preissmann, the concentration flow of river system and inner boundary conditions had solved. A hydrodynamic model for current simulation of long-distance water transfer has been established too, which aimed at the water transfer project from Dongping Lake to Jinan City. Based on the generalization of water transfer channels and hydraulic structures, the critical problems are discussed:simulation of the upper and lower boundaries and initial condition; simulation of flood-intake gate and flood diversion gate; dynamic simulation of leakage of the newly-built channel and so on. The numerical calculation under the operation conditions shows that the calculated results of water level and discharge fit well with the design values.(4) Based on the basic principle of the optimal allocation of water resources, and according to the actual engineering situation, the real-time scheduling models have solved using the theories of dynamic programming and linear programming. Then the real-time operation system based on GIS was built by these optimization algorithms. It has some theoretical value and practical significance for the future optimal scheduling and management of the water resources of the South-to-North Water Transfer Project in Shandong Province.(5) The water resources optimal allocation and real-time scheduling models are applied to water supply area of Ji-ping channel in the east-route of the South-to-North Water Transfer Project. The project of the optimization allocation of water receiving area and the optimization of Dongping Lake and Ji-ping channel had acquired too. Thus the results confirmed the feasibility of the model and its solution method. The study provides science basis for the optimal utilization on regional water resources and the results are important to the sustainable development on social, economic and ecological environment.
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