水科学进展2011，Vol.22Issue(2)：168-174,7.DOI:CNKI:32-1309/P.20110313.2236.012
土壤数据对分布式流域水文模型模拟效果的影响
Effects of spatial detail of soil data on distributed hydrological modeling
摘要
Abstract
Effects of different soil data resolutions on distributed hydrological modeling and total water yield were investigated using a modeling approach.The semi-distributed SWAT (Soil and Water Assessment Tool) model and the fully distributed WetSpa (Water and Energy Transfer between Soil, Plant and Atmosphere) Extension were used in this study.Both the US SSURGO (Soil Survey Geographic) soil data and the detailed SoLIM (Soil-land Inference Model) soil data were utilized in the modeling investigation.Results show that different soil data resolutions will lead to a large discrepancy in modeling water yield at simulation points distributed over a watershed.However, the difference in simulation of total water yield decreases with increasing the area of watersheds.Based on the modeling experiment, it is recommended that detailed spatial data will be required where the simulation primarily focuses on the spatial distribution of water fluxes, while the data condition could be relaxed for the simulation of total water yield especially for large-sized watersheds.关键词
土壤数据/分布式水文模型/径流模拟/综合作用/尺度分类
建筑与水利引用本文复制引用
李润奎,朱阿兴,秦承志,陈腊娇,刘军志..土壤数据对分布式流域水文模型模拟效果的影响[J].水科学进展,2011,22(2):168-174,7.基金项目
国家自然科学基金资助项目(40971236) （40971236）
国家重点基础研究发展计划(973)资助项目(2007CB407207) （973）
"十一五"国家科技支撑计划资助项目(2007BAC15B01) （2007BAC15B01）
