【摘要】 SWAT模型是美国农业部开发的长时段的流域分布式水文模型。它能够利用GIS和RS提供的空间数据信息,模拟复杂大流域中多种不同的水文物理过程,包括水、沙、化学物质和杀虫剂的输移与转化过程。从SWAT模型的原理、结构、应用及评价等方面对该模型作一综合性评述,为我国水文模型的建立提供参考。更多还原

【Abstract】 SWAT modle physically based is the acronym for Soil and Water Assessment Tool,developed by the USDA.By using GIS and RS,SWAT was developed to predict the impact of land management practices on water,sediment and agricultural chemical yields in large complex watersheds with varying soils,land use and management conditions in the long-term.The SWAT model enables users to study long-term impacts.The principle,structure,appliance and assessment of SWAT are presented in order to offer reference for our country’s hydrological models.更多还原