中文摘要：

水文模型是水文科学研究中重要的方法和手段之一.在分布式水文模型SWAT支持下,利用研究区DEM生成河网和流域边界并划分子流域,根据在收集资料、实地调查和土壤采样分析的基础上,通过对模型所需的气象、土壤、地形、土地利用等影响因子进行参数化,模拟了淅川县丹江口水源区的水文过程与产沙过程.

英文摘要：

Hydrological model is one of the ways of the hydrology research.With the distributed hydrological modeling（SWAT）,the river network and watershed boundaries are generated by use of DEM.Parameterization of SWAT is achieved via meteorology,soil,topography,land use and other affecting factors on basis of collecting data,field investigation and soil sampling and analysis.The hydrological processes and sediment yield were simulated in Danjiangkou reservoir area in xichuan county.