人民珠江2025，Vol.46Issue(1)：50-58,9.DOI:10.3969/j.issn.1001-9235.2025.01.006
基于XGBoost与SWAT径流模拟对比及校正研究
Comparison and Correction of Runoff Simulation Based on XGBoost and SWAT
摘要
Abstract
Runoff simulation has always been a research hotspot in hydrological science,which has important guiding significance for water resources research.Based on the extreme gradient boosting(XGBoost)algorithm and soil and water assessment tool(SWAT)model,a runoff simulation model was constructed by using the observed hydrological data of Waizhou hydrological station in Ganjiang River Basin,and the simulation effects of the two models were compared.Meanwhile,based on the XGBoost model,the residual correction method was used to correct the runoff simulation results of the SWAT model.The results show that:① The simulation effect of the XGBoost model is good,and the Nash-Sutcliffe efficiency(NSE)of daily runoff simulation of the XGBoost model is 15.66%higher than that of the SWAT model.② The SWAT model is underestimated at high flow rates,while the XGBoost model results in basically consistent simulation values and observed values,and the simulated hydrograph has a high degree of fitting,showing a good correlation.③ After XGBoost correction,the simulation accuracy of the SWAT model is obviously improved,which can effectively improve the runoff simulation effect.When the residual error is corrected,the NSE value of runoff simulation can reach 0.96,an increase of 15.66%.关键词
XGBoost/SWAT/径流模拟/误差校正Key words
XGBoost/SWAT/runoff simulation/error correction分类
建筑与水利引用本文复制引用
梁丽莎,蒋晓蕾,胡乐怡,沈静,章丽萍,付晓雷..基于XGBoost与SWAT径流模拟对比及校正研究[J].人民珠江,2025,46(1):50-58,9.基金项目
国家自然科学基金资助项目(42371021,52109036) （42371021,52109036）
河海大学水灾害防御全国重点实验室"一带一路"水与可持续发展科技基金面上项目(2022491111) （2022491111）
水利部水文气象灾害机理与预警重点实验室开放基金(HYMED202203,HYMED202210) （HYMED202203,HYMED202210）
