With the development of economy and society, the human activities in North China are becoming more and more intensive, the variation of land cover and utilization, the aggravation of urbanization and other factors have changed the process and spatial pattern of water resources circulation, it leads to the high complexity of water resources circulation system in North China, which brings a new challenge to the simulation and prediction. Due to the impact of climate change and human activities, the differences in rain-flood frequency of Yongding River have significantly varied. This study focuses on the new practical judgment method about hydrological year types, which is crucial for water allocation involving inter-provincial rivers.
We have significantly improved the accuracy of the hydrological year type determination model, transforming it from a traditional qualitative judgment method to a quantitative model method, providing strong technical support for rational water resource allocation under ecological water replenishment conditions.
Congress' programme reference: 1_1_36