SWAT模型在药乡小流域的径流模拟研究  

The Runoff Simulation of SWAT Model in Yaoxiang Small Watershed

作　　者：孟令超[1] 颜宏亮[1] 李浩宇[2] 刘鸿敏[1] 付延凯 刘汝学 

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018 [2]绥化学院农业与水利工程学院,吉林绥化152061

出　　处：《山东农业大学学报（自然科学版）》2014年第3期423-428,共6页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：SWAT模型是由美国农业部(USDA)农业研究中心1994年开发的具有很强物理机制的流域水文模型,能够准确地对不同气候、下垫面等情景的水文要素变化进行模拟及预测。本文以泰山药乡小流域为研究对象,使用SWAT模型对2012年逐日径流量进行了模拟研究。结果表明,校准期和验证期的相对误差Re分别为4.5%和7.0%;相关系数R2分别为0.72和0.85;Nash Suttcliff效率系数分别为0.78和0.87。模型模拟精度高于其评价标准(Ens>0.5,R2>0.6),说明SWAT模型适用于该小流域,且模拟效果较好,可以应用于与该小流域径流相关的各种模拟分析,研究该区域的生态健康状态。The SWAT model developed by the United States department of agriculture （USDA） agricultural research center in 1994 is a strong physical mechanism Watershed hydrological model. It can accurately simulate and predict the different underlying surface runoff In this paper, we take Yaoxiang Small Watershed in Mount tai as the research object. We study on the daily runoff of Yaoxiang small watershed in 2013 by SWAT model. The results show that on a regular basis and validation period, the simulation rate relative errors（Re）axe 4.5% and 7%, correlation coefficients （R2） are 0.72 and 0.85, Nash Suttcliff efficiency coefficients axe 0.78 and 0.87. Model simulation accuracy is higher than the evaluation criteria（Ens 〉 0.5,R2〉 0.6）. This conclusion explains that the SWAT model is suitable for the small watershed, and simulation result is better. So it can be applied to a variety of simulated runoff associated with the small watershed. It also can be used to studying the ecological health of the region.

关 键 词：SWAT模型 参数敏感性分析 径流模拟 药乡小流域 

分 类 号：TV213.9[水利工程—水文学及水资源]