Research on a calculation method for the available water supply of Miyun Reservoir under current inflow conditions
Miyun Reservoir is the most important surface water source in Beijing,and scientifically evaluating the available water supply of the reservoir is an important foundation for carrying out the municipal water resource allocation and guaran-tee planning.Due to environmental changes such as climate,underlying surface,and human activities,the inflow and sup-ply of Miyun Reservoir have shown a significant downward trend.To scientifically analyze the available water supply of Miyun Reservoir under current inflow conditions,this article proposes a calculation method for available water supply based on synchronous correction of natural runoff.The consistency correction of the measured inflow series of Miyun Reservoir is carried out,and the rationality of the results is verified.The results show that after the revision of Miyun Reservoir,the average annual available water supply from 1980 to 2016 has significantly decreased,which is 40％to 60％lower than the results of the second water resources survey and evaluation in 2020,which can provide important basis for optimizing the allocation and guarantee of water resources in Beijing in the new era.
Miyun Reservoiravailable water supplyconsistency correctionwater resources investigation and assessment
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