考虑水库调蓄的金沙江径流模拟研究  

Research on runoff simulation of Jinsha River considering the operation of reservoirs

作　　者：陈华[1] 朱迪 陈启会 陈炯宏 郭生练[1] CHEN Hua;ZHU Di;CHEN Qihui;CHEN Jionghong;GUO Shenglian(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;China City Environment Protection Engineering Limited Company,Wuhan 430200,China;Changjiang Water Resources Commission,Wuhan 430010,China)

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]中冶南方都市环保工程技术股份有限公司,湖北武汉430200 [3]长江水利委员会,湖北武汉430010

出　　处：《武汉大学学报（工学版）》2022年第1期13-21,共9页Engineering Journal of Wuhan University

基　　金：国家重点研发计划项目(编号:2017YFA0603702)。

摘　　要：水库的修建改变了天然河道径流特征,给径流模拟造成一定困难。为提高径流模拟效果,基于SWAT(soil and water assessment tool)分布式水文模型,针对其水库模块的局限性,采用水库调度函数进行改进,提出了水库调度函数模块的SWAT模型,并以金沙江流域为研究流域,进行考虑水库调蓄的径流模拟应用分析。结果表明:在水库影响期以前,SWAT模型对径流过程、均值和极大值模拟效果较好,对径流极小值模拟效果一般;在水库影响期内,调度函数拟合出库与实际出库一致性较好,且水库调度函数模块的SWAT模型可以显著提高径流模拟效果,为考虑水库调蓄的径流模拟提供了新的途径。The construction of reservoirs has changed characteristics of the natural river,which makes it difficult to simulate runoff considering the operation of reservoirs.In order to improve accuracy of the runoff simulation,a SWAT(soil and water assessment tool)hydrological model with reservoir operation function module is proposed,aiming at limitations of reservoir modules of SWAT model.The Jinsha River basin is selected as study case to analyze the application of runoff simulation considering reservoir regulation and storage.The results show that before the reservoir influence period,the SWAT model has good simulation results of runoff hydrographs,mean values and extreme large flows,but simulation results of extreme low flow are not satisfying;during the reservoir influence period,the reservoir release simulated by operation functions is closed to the observed release and the SWAT model with the reservoir operation function module can significantly improve the runoff simulation results.This study proposes a new method for runoff simulation considering operation of reservoirs.

关 键 词：SWAT模型 水库调度函数 径流模拟 金沙江 

分 类 号：P333[天文地球—水文科学]