摘要： SWAT(Soil and Water Assessment Tool)模型是美国农业部开发的具有物理基础的分布式非点源模型系统,可以模拟流域尺度的多种地理过程,如产水、产沙、养分和农药等的迁移与转化,并预测不同的管理措施对流域过程的影响。SWAT模型模拟内容多,程序结构复杂,导致集成应用和模型修改的困难。本文在模型结构剖析的基础上讨论了SWAT模型的内部运行结构,列举实例给出了运行控制文件的写法。
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