Application Abstract: A grid-based distributed physical hydrological model was established to quantitatively evaluate the impact of artificial rainfall and snow on surface water,soil water,and groundwater.The method for evaluating regional water resources under the influence of artificial rainfall and snow was improved.Results of analysis of regional water impacts.Based on the"Pengman-Montes"method,a prediction model of farmland irrigation water demand that matches the rainfall process was constructed,and a regional water supply and demand balance analysis method under the influence of artificial rainfall and snow was constructed.Forecast results of distributed water demand in river basins.A technical framework for joint control of regional aerial water resources and terrestrial water resources is proposed.Based on heuristic multi-level decomposition and coordination of regional water resources simulation and regulation modeling methods,a water resource allocation model suitable for rapid solution in the Shiyang River Basin is constructed.A case study of joint control of air and land water resources in the Shiyang River Basin.The simulation results show that the joint control of air and land water resources has effectively alleviated the contradiction between water supply and demand in the Shiyang River Basin.Analyze the utilization degree and characteristics of water resources in different water resources subdivisions in China,and lay a solid foundation for the study of regional water resources comprehensive utilization strategies under the influence of industrial rainfall and snow.
