基于SWAT模型的石头口门水库流域径流模拟

[目的]利用SWAT模型对石头口门水库流域径流进行模拟。[方法]利用石头口门水库流域的DEM高程、土地利用、土壤类型、水文气象等数据,构建SWAT分布式水文模型,分别选用2006、2010年作为模型校准期和验证期,对石头口门水库流域月径流进行模拟。[结果]SWAT模拟结果表明,SWAT模型可应用于石头口门流域径流模拟,且模拟效果较好。但是,该模型对于局部暴雨响应不显著,导致验证期暴雨月份径流实测值偏高,与模拟值有较大的偏差。[结论]该研究为石头口门水库流域未来的水资源规划和管理提供了理论参考。

Runoff Simulation of Shitoukoumen Reservoir Basin Based on SWAT Model

[Objective] The study aimed to simulate the runoff of Shitoukoumen Reservoir basin by using the SWAT model.[Method] Based on DEM elevation,land use type,soil type and hydrometeorological data,SWAT model,a distributed hydrological model was established to simulate the monthly runoff of Shitoukoumen Reservoir basin,and the years 2006 and 2010 were chosen as the calibration and validation period respectively.[Result] The simulation results indicated that the SWAT model can be used in the runoff simulation of Shitoukoumen Reservoir basin,and the results showed well.However,the response of the model to the local rainstorm was not obvious,so that the actual runoff in June and July of 2010 was abnormally higher than the simulation value.[Conclusion] The research could provide theoretical references for the plan and management of water resources in Shitoukoumen Reservoir basin in future.