基于SWAT模型的资水流域径流模拟  

Runoff Simulation of Zishui Basin Based on SWAT Model

作　　者：张爱玲[1,2] 王韶伟[2] 汪萍[2] 商照荣[2] 

机构地区：[1]中国原子能科学研究院,北京102413 [2]环境保护部核与辐射安全中心,北京100082

出　　处：《水文》2017年第5期38-42,26,共6页Journal of China Hydrology

基　　金：国家环保公益性行业科研专项(201509074)

摘　　要：以资水流域柘溪水库以下区域为研究对象,基于构建的分布式水文模型SWAT对水文过程进行模拟。在地面高程、土地利用、土壤、气象等数据预处理的基础上,采用2010~2011年实测径流数据进行参数率定,采用2012年实测径流数据进行模型验证,对模型在研究区的适用性进行研究。通过对径流模拟值和实测值的比较,月径流率定期和验证期的相关系数R^2和Nash系数Ens分别在0.93以上和0.91以上,日径流率定期和验证期的相关系数R^2和Nash系数Ens分别在0.78以上和0.70以上。基于这两个评价标准可知SWAT模型在资水游流域有良好的适用性,可为流域内拟建桃花江核电厂的取水安全分析和水环境影响评价提供技术支持。Based on the distributed hydrological model SWAT, the hydrological process was simulated with the downstream of the Zhexi reservoir in the Zishui Basin as the study case. Based on pre-processing the data of DEM, land use, soil and weather,the applicability of the model was demonstrated by making parameter calibration with the observed runoff data from 2010 to2011 and validation with the observed runoff data in 2012. The comparison between the simulated and observed monthly runoff show that the correlation coefficient R^2 and Nash coefficient of Ens are more than 0.93 and 0.91 in calibration period and validation period respectively, and daily runoff show that correlation coefficient R^2 and Nash coefficient of Ens are more than 0.78 and 0.70 in calibration period and validation period respectively. SWAT model has a good applicability for the Zishui basin. It could provide important technical support for water utilization security analysis and environment impact assessment of nuclear power plant.

关 键 词：SWAT模型 资水流域 径流模拟 

分 类 号：TV121[水利工程—水文学及水资源]