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根据水流推进过程预测Horton入渗公式参数和田面平均糙率系数
引用本文:马东豪,王全九,郭太龙.根据水流推进过程预测Horton入渗公式参数和田面平均糙率系数[J].农业工程学报,2005,21(12):52-55.
作者姓名:马东豪  王全九  郭太龙
作者单位:1. 中科院地理科学与资源研究所陆地水循环及地表过程实验室,北京,100101;中科院研究生院,北京,100039;西安理工大学水资源研究所,西安,710048
2. 西安理工大学水资源研究所,西安,710048;中科院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点试验室,杨凌,712100
3. 中科院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点试验室,杨凌,712100
基金项目:中国科学院“百人计划”项目(2004109)
摘    要:通过分析畦田水流特征,结合Horton入渗公式,在满宁公式的基础上,根据水量平衡原理建立了利用水流推进过程确定土壤入渗参数和田面糙率系数的方法。同时,利用实验资料对所提出的方法进行了检验,结果表明利用该方法所推求的入渗参数和糙率系数,零惯量模型预测的推进过程和消退过程与实测数据相一致。

关 键 词:水流推进    土壤入渗    Horton入渗公式    田面糙率系数
文章编号:1002-6819(2005)12-0052-04
收稿时间:2005-04-20
修稿时间:2005-09-19

Estimation of Horton infiltration equation parameters and field-averaged roughness coefficient by surface irrigation advance
Ma Donghao,Wang Quanjiu and Guo Tailong.Estimation of Horton infiltration equation parameters and field-averaged roughness coefficient by surface irrigation advance[J].Transactions of the Chinese Society of Agricultural Engineering,2005,21(12):52-55.
Authors:Ma Donghao  Wang Quanjiu and Guo Tailong
Abstract:Based on the analyses of water stream and irrigation advance, two functions were given to describe irrigation advance and water depth profile. A method for estimation of Manning roughness coefficient was developed through adopting Manning equation for water flow. Combining with Horton infiltration equation, the solution for estimation of infiltration properties was established based on the water volume balance. The method was evaluated by the field experimental data, and the results indicate that the predicted irrigation advance and recession of SRFR4.06 with the parameters obtained by the new method go well with the observed.
Keywords:irrigation advance  soil infiltration  Horton infiltration equation  Manning roughness coefficient
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