| 畦灌下渗水形状系数变化规律与水流推进简化解析模型研究 |
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| 引用本文： | 聂卫波,马孝义,王术礼,甘学涛.畦灌下渗水形状系数变化规律与水流推进简化解析模型研究[J].灌溉排水学报,2008,27(3). |
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| 作者姓名： | 聂卫波 马孝义 王术礼 甘学涛 |
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| 作者单位： | 西北农林科技大学,旱区农业水土工程教育部重点试验室,陕西,杨凌,712100 |
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| 基金项目： | 国家自然科学基金
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教育部优秀青年教师资助计划
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国家科技支撑计划
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西北农林科技大学青年学术骨干计划 |
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| 摘 要： | 以Fok和Bishop提出的下渗水形状系数计算公式为基础,通过整理并分析部分国内外已有的文献资料,提出了计算下渗水形状系数的简化公式和经验公式。根据水量平衡原理,通过引入地表储水形状系数和提出的公式所计算出的下渗水形状系数,建立了基于水量平衡原理的畦灌水流推进简化解析模型。结合已有文献资料和田间试验对模型进行检验,表明所提出计算下渗水形状系数的简化公式和经验公式是可靠的,以此建立的水流推进简化模型具有严谨的物理基础,且计算求解方便、精度较高,可用于畦灌合理灌水技术指标的确定。
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| 关 键 词： | 水量平衡模型 畦灌 下渗水形状系数 地表储水形状系数 解析解 |
Variation Law of Figure Coefficient of Infiltration Water and Simplified Analytic Model of Fluent Advancement under Border Irrigation |
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| NIE Wei-bo,MA Xiao-yi,WANG Shu-li,GAN Xue-tao.Variation Law of Figure Coefficient of Infiltration Water and Simplified Analytic Model of Fluent Advancement under Border Irrigation[J].Journal of Irrigation and Drainage,2008,27(3). |
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| Authors: | NIE Wei-bo MA Xiao-yi WANG Shu-li GAN Xue-tao |
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| Institution: | NIE Wei-bo,MA Xiao-yi,WANG Shu-li,GAN Xue-tao(Key Laboratory for Agricultural Soil , Water Engineering in Arid Area of Ministry of Education,Yangling 712100,China) |
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| Abstract: | This paper is based on the computation formula of infiltration figure coefficient which was put forward by Fok and Bishop.A simplified and empirical formula was brought forward after being reorganized and analyzed some domestic and foreign related references.On the basis of water balance model,a simplified analytic model of border irrigation is set up with the help of upper storage water coefficient.Testified by some research results and field experiments,it is shown that the model is reasonable and has som... |
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| Keywords: | water balance model border irrigation seepage water form factor figure coefficient of surface storage analytic solution |
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