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中文摘要：
基于GIS与DEM技术,构建基于Holtan产流的分布式水文模型（Grid-Holtan模型）。模型以栅格为计算单元,栅格产流采用基于Holtan下渗方法的超渗产流计算,坡面汇流和河道汇流均采用逐栅格的一维扩散波水流演算模型模拟。将Grid-Holtan模型、陕北模型与新安江模型应用于半干旱的沁河孔家坡流域。结果表明,Grid-Holtan模型、陕北模型的模拟效果好于新安江模型,GridHoltan模型洪峰模拟效果更好。
英文摘要：
Using the GIS and DEM techniques,a distributed hydrological model based on a runoff generation theory（ the Grid-Holtan model） was developed. For each computational cell,the infiltration-excess runoff was calculated with the Holtan infiltration method,and the overland flow and river flow routing were simulated with the onedimensional diffusion wave model. The Grid-Holtan model,Shanbei model,and Xinanjiang model were applied to the Kongjiapo Catchment of the Qinhe Basin,in China. The results show that the Grid-Holtan model and Shanbei model perform better in flood simulation than the Xinanjiang model,while the flood peak simulation accuracy of the Grid-Holtan model is higher.
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