| 喷灌条件下土壤水分分布的数值模拟研究 |
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| 引用本文： | 李小平,罗金耀.喷灌条件下土壤水分分布的数值模拟研究[J].灌溉排水学报,2005,24(3):62-64,73. |
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| 作者姓名： | 李小平 罗金耀 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 现有试验研究结果表明,喷灌水量在土壤中的分布比其在地面的分布要均匀得多。通过建立三维土壤水分运动数学模型来模拟喷灌条件下土壤水分运动情况,并用经济解法对方程进行求解。使用编制的程序进行实例计算的结果表明,喷灌水量在土壤中的分布要比在地表的分布均匀得多。喷灌水量在土壤中分布的均匀性与初始的土壤水分分布均匀性有较大的关系。
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| 关 键 词： | 喷灌 土壤含水率 均匀度 |
| 文章编号： | 1000-646X(2005)03-0062-03 |
Study on Numerical Simulation of Water Distributionin Soil with Sprinkler Irrigation |
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| LI Xiao-ping,LUO Jin-yao.Study on Numerical Simulation of Water Distributionin Soil with Sprinkler Irrigation[J].Journal of Irrigation and Drainage,2005,24(3):62-64,73. |
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| Authors: | LI Xiao-ping LUO Jin-yao |
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| Abstract: | Because some researchers found that the value of uniformity of sprinkling water on the surface is higher than the value subsurface, the subsurface distribution of water was simulated by set up a three-dimensional mathematical model. An economical arithmetic was used to solve the equation. The result of computation by using the program compiled by the author shows that the surface distribution of water is convinced lower than the value of subsurface and the subsurface water distribution is mainly subject to the initial water distribution of soil. |
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| Keywords: | sprinkler irrigation soil moisture content uniformity |
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