简化SWAT模型模拟漓江支流小流域的适用性评价  

Applicability evaluation of simulating small watershed of tributary in Lijiang River by simplified SWAT model

作　　者：杨丽雅[1,2] 夏源[1] 蔡雪峰[1] 张芹[3] 张亚倩[4] 

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541006 [2]河海大学文天学院,安徽马鞍山243031 [3]桂林理工大学土木与建筑工程学院,广西桂林541006 [4]桂林理工大学地球科学学院,广西桂林541006

出　　处：《水资源与水工程学报》2015年第6期101-104,共4页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(41302197);国家科技支撑计划(2012BAC26B00);广西自然科学基金项目(2013GXNSFBA019211;2014GXNSFBA118236;2012GXNSFGA060001)

摘　　要：以漓江支流某小流域作为非点源污染流域研究对象,应用简化的SWAT模型,模拟示范区流域非点源污染的负荷量。通过对SWAT模型的简化,建立适用于漓江支流小流域的非点源污染模型,并对模型的适用性做出评价,得出月均值相对误差Re均小于25%,月相关系数R^2均大于0.7,月效率系数E_(ns)均大于0.5,拟合效果良好。本文研究结果表明,在漓江支流小流域建立简化的SWAT模型,对该流域进行非点源污染模拟是可行的。Taking a small watershed of tributaries in Lijiang River as the research object of non-point source pollution ,the paper used simplified SWAT model to simulate the loading of non-point source pollu-tion in the demonstration area .By simplifying SWAT model , it established non-point source pollution model which applied to small watershed tributaries in Lijiang River ,and.evaluated the applicability of the model and got the conclusion that the relative error ( Re ) is less than 25%, the correlation coefficient (R2) is larger than 0.7 and Nash-Sutcliffe coefficient of efficiency (Ens) is larger than 0.5.The fitting effect is good .The result indicates that it is feasible to establish the simplified SWAT model in watershed of tributaries in Lijiang River for simulating the non-point source pollution .

关 键 词：SWAT模型 非点源污染 污染负荷 河流污染 漓江支流 

分 类 号：X52[环境科学与工程—环境工程] X824