Establishment and Application of A Water Resources Supply-demand Balance Simulation Model for Long-term Supply-demand Planning of Qinghai Province
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Abstract:
Based on systematical analysis of water resources, a long series dynamic simulation model of water resources supply-demand balance was developed, which targets at multiple levels, multiple water resources, and multiple users. The model mainly consisted of four parts: data management, supply and demand balance calculation, planning adjustment and statistical analysis of the results. Its control equations included the water balance equation, the water supply and demand balance equation, the boundary condition equation, the initial condition and the special kind of equation. The scheduling rules of the model included the water supply dispatching rule and the water supply dispatching rule. Compared with the traditional supply and demand analysis model, the model had the ability to design new engineering capacity in the area of water shortage. The model was then applied to long-term water supply-demand planning of Qinghai Province. The application results showed that the calculation of a series of indicators achieved by this model in water resource supply-demand balance analysis including available water supply, water supply guarantee rate, development of water resources, water supply capacity, water surplus and deficiency, the automatic planning of newly added project capacity, could be used as a scientific and effective decision-making tool of the water resources management department.
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