北京师范大学学报：自然科学版2012，Vol.48Issue(5)：490-496,7.
基于SWAT模型和SUFI-2算法的渭河流域月径流分布式模拟
DISTRIBUTED HYDROLOGICAL SIMULATION USING SWAT AND SUFI-2 IN THE WEI RIVER BASIN
摘要
Abstract
In order to simulate monthly hydrograph in the Wei River basin from 1961—2008,a distributed hydrological model was developed with SWAT(soil and water assessment tool),calibrated and validated with SUFI-2(sequential uncertainty fitting program).Sensitivity and uncertainty analysis were performed to improve model performance.Data showed that most of the 28 global parameters related to hydrology were sensitive to river discharge.As expected,parameters such as CN2,ALPHA_BF,SLSUBBSN,SOL_BD,HRU_SLP,SOL_K,SOL_AWC,and SMFMX were the most sensitive parameters.In calibration(validation),Φ and ENS values at most of the stations were found to be greater than 0.6(0.7),and R2 at all stations greater than 0.7(0.8).Generally speaking,the model performance criteria were quite satisfactory.The R-factor for both calibration and validation at five stations was quite small.However,the P-factor for calibration at Linjiacun and Weijiabao was small.This indicated that the actual uncertainty was larger than expected.The possible reasons may include the operation of reservoirs and insufficient consideration of agricultural water uses.关键词
SWAT/SUFI-2/径流/渭河Key words
SWAT/SUFI-2/runoff/Wei River分类
地球科学引用本文复制引用
左德鹏,徐宗学..基于SWAT模型和SUFI-2算法的渭河流域月径流分布式模拟[J].北京师范大学学报：自然科学版,2012,48(5):490-496,7.基金项目
国家水体污染控制与治理科技重大专项资助项目 （）
国家自然科学基金资助项目 （）
