| 含水率差值法初探 |
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| 引用本文： | 董艳慧,杨路华,卜卿,夏辉,高惠嫣.含水率差值法初探[J].节水灌溉,2007(1):24-26,31. |
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| 作者姓名： | 董艳慧 杨路华 卜卿 夏辉 高惠嫣 |
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| 作者单位： | 1. 河北农业大学,河北,保定,071001
2. 河北兴泰发电有限责任公司,河北,邢台,054000 |
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| 摘 要： | 概述了国内外确定湿润锋面处的有效基质吸力的方法.根据实验数据得知,饱和含水率和初始含水率的差值与湿润锋面处的有效基质吸力S f为成正比的关系,并在此基础上提出了一种求解S f值的新方法,即含水率差值法,由实验数据拟合得到二者的关系式.列出了3种土质的含水率差值法关系式,相关系数均接近于1.表明含水率差值法是目前求解Green-Ampt模型入渗湿润锋面处的有效基质吸力简单和准确的一种方法.
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| 关 键 词： | Green-Ampt模型 湿润锋面处的有效基质吸力 含水率差值法 初始含水率 差值法 Method Space Pore Available 入渗 模型 相关系数 土质 关系式 数据拟合 实验数据 求解 方法 基质吸力 湿润锋面 |
| 文章编号： | 1007-4929（2007）01-0024-03 |
| 修稿时间： | 2006-06-02 |
Preliminary Discussion on the Available Pore Space Method |
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| DONG Yan-hui,YANG Lu-hua,BU Qing,XIA Hui,GAO Hui-yan.Preliminary Discussion on the Available Pore Space Method[J].Water Saving Irrigation,2007(1):24-26,31. |
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| Authors: | DONG Yan-hui YANG Lu-hua BU Qing XIA Hui GAO Hui-yan |
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| Institution: | 1. Agricultural University of Hebei, Baoding 071001,China; 2. Hebel Xingtai Power Plant Co. Ltd. ,Xingtai 054000,China |
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| Abstract: | The methods of calculating the effective wetting front suction were summarized in this paper. According to the experimental data, the difference between saturated moisture and initial moisture was in proportion to the effective wetting front suction. Based on this, a new method, namely the available pore space method, was put forward and the equation was gotten through fitting the experimental data. Equations for three different soil textures was listed in this paper. All their correlation coefficients were close to 1. This indicated that the available pore space method was a simple and exact method to calculate the effective wetting front suction of Green-Ampt model at present. |
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| Keywords: | Green-Ampt model the effective wetting front suetion the available pore space method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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