基于SWAT模型的细河流域径流模拟研究

Research of runoff simulation in Xihe basin using SWAT model

分布式水文模型能够准确地反映降雨时空和下垫面等条件变化下的流域水文响应特征.运用SWAT分布式水文模型,将辽宁省细河流域划分为28个子流域,2 061个水文响应单元,对流域水文循环过程进行了模拟.模型校准期R^2、Ens分别为0.92、0.92,验证期R^2、Ens分别为0.89、0.90,均满足适用性标准.SWAT模型对于细河流域径流模拟的准确度较高.

Water resources are the basic condition of human survival and development.In order to recogrize the rational allocation and sustainable development of water resources,the hydrological cycle has become to be one of the most important studies in hydrological research.In this study,the Xihe basin is divided into 28 subwatersheds and 2 061 hydrological response units by using SWAT distributed hydrological model.The hydrological cycle of the basin is simulated.The model calibration periods R-2 and Ens are 0.92 and 0.92,and the validation periods R-2 and Ens are 0.89 and 0.90,which meet the applicability criteria.The accuracy of the SWAT simulation based on the hydrological process in the Xihe basin is high.