| 摘要: |
| 介绍了降雨条件下Green-Ampt模型的改进形式,以及国内外利用实验和理论方法推求模型中湿润锋处吸力的方法,对其在积水入渗、降雨入渗、结皮及侵蚀模型中的应用进行了探讨,对该模型与其他模型进行了对比分析,并展望了模型的应用前景。认为该模型可进一步被应用于植被覆盖条件、坡地降雨过程及坡地浑水入渗过程的分析;在今后坡地水文的研究中,可针对以上不同条件进行Green-Ampt模型应用于黄土坡地水文过程的修正和改进。 |
| 关键词: Green-Ampt模型 坡面降雨 积水入渗特征 模型改进 |
| DOI： |
| 分类号:F120.4;G649.21 |
| 基金项目:国家自然科学基金项目（40371057）；西北农林科技大学科研专项（05ZR043）；西北农林科技大学2006“青年学术骨干支持计划”项目 |
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| Green-Ampt model and its application |
|
WANG Li
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| Abstract: |
| The modified Green-Ampt model was introduced under rainfall conditions,as well as the domestic and international methods to determine the parameter of soil water suction of wetting front in the model according to experiment and theory.The corresponding application of the model is discussed including ponding water infiltration,rainfall and infiltration,crust and erosion models,and the comparison between the model and the other models was analyzed.Based on the results obtained by the former studies,the applying prospects of the model was viewed.Green-Ampt model can be used under the conditions of vegetation cover,rainfall of slopeland and muddy water infiltration on slope land.In the later studies of slope land hydrology,Green-Ampt model can be modified and revised when studying Loess slope land hydrology process. |
| Key words: Green-Ampt model,rainfall on slope land,ponding water infiltration characteristics,model modification |
