【摘要】 为探讨根溪河小流域的产沙产流特性，本文以根溪河小流域为研究区，利用2018—2022年实测水文、DEM、土地利用、气象、土壤等数据，建立SWAT模型，模拟出径流、泥沙的模拟结果，并分析流域产沙产流特征。结果表明：径流率定期和验证期R~2分别为0.75和0.58,Ens为0.74和0.62；泥沙率定期和验证期R~2分别达0.68和0.53,Ens达到0.71和0.41。SWAT模型在率定期和验证期的数值模拟均满足评价标准，模拟结果优良，模型在根溪河小流域具备一定的适用性。该研究旨在为根溪河小流域的水资源管理提供参考依据。更多还原

【Abstract】 In order to explore the characteristics of sediment yield and runoff in the small watershed of Genxi River,this paper takes the small watershed of Genxi River as the research area,and uses the measured hydrological data,DEM,land use,meteorology,soil and other data from 2018 to 2022 to establish SWAT model.The simulation results of runoff and sediment are simulated,and the characteristics of sediment yield and runoff in the watershed are analyzed.The results showed that the R~2 of runoff rate period and validation period were0.75 and 0.58,respectively,and Ens were 0.74 and 0.62,respectively.The R~2 of the sediment rate in the calibration and validation periods reached 0.68 and 0.53,respectively,and the Ens reached 0.71 and 0.41,respectively.The numerical simulation of the SWAT model in the calibration and verification periods meets the evaluation criteria,and the simulation results are excellent.SWAT model has certain applicability in the small watershed of Genxi River.The purpose of this study is to provide a reference for water resources management in the small watershed of Genxi River.更多还原