| 喷灌条件下冬小麦田间水分运移数学模拟及灌溉模式的研究 |
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| 引用本文： | 胡浩云,谢森传.喷灌条件下冬小麦田间水分运移数学模拟及灌溉模式的研究[J].水科学进展,1995,6(4):278-284. |
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| 作者姓名： | 胡浩云 谢森传 |
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| 作者单位： | 1.华北水利水电学院 郑州 450045; |
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| 摘 要： | 为探讨节水高产喷灌模式,用数学模拟和田间试验相结合方法,研究了冬小麦在喷灌条件下田间水分运移规律。数学模拟结果与田间实测土壤含水率吻合良好。在此基础上模拟计算出不同喷灌定额下,消耗于作物蒸腾、表土蒸发和深层渗漏的水量,结果表明40～60mm喷灌定额下的农田水分无效消耗(表土蒸发+深层渗漏)最小,从而得出节水高产的冬小麦喷灌灌溉模式。经田间试验对比,获得相同产量条件下,本文提出的模式比现行喷灌模式节约灌溉水45%。
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| 关 键 词： | 冬小麦 喷灌 水分运移 数学模拟 节水 灌溉模式 |
| 收稿时间： | 1994-06-06 |
Study on the Field Moisture Movement Numerical Simulation for Winter Wheat and the Irrigation Model under Sprinkler Irrigation Condition |
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| Hu haoyun,Xie senchuan,Hui shibo.Study on the Field Moisture Movement Numerical Simulation for Winter Wheat and the Irrigation Model under Sprinkler Irrigation Condition[J].Advances in Water Science,1995,6(4):278-284. |
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| Authors: | Hu haoyun Xie senchuan Hui shibo |
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| Affiliation: | 1.Huabei Hydraulic and Hydropower Engineering Institute, Zhengzhou 450045;2.Tsinghua University, Beijing 100084 |
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| Abstract: | To investigate water-saving sprinkler model,both numerical simulation and field experiment methods are used to study the field moisture movement of winter wheat under sprinkler irrigation.Compared of the soil moisture between numerical simulation and the field experiment data,the results are satisfactory and indicate that the numerical model is reliable.Based on the model,the transpiration,surface evaporation and deep percolation under different sprinkler irrigation yuota are simulated.The results show that the surface evaporation and deep percolation under 40-60mm sprinkler irrigation yuota is minimal.Thus,the reasonable sprinkler irrigation model for winter wheat is proposed.Relative to the present sprinkler irrigation farmer's usage water use of the suggested model is reduced by 45%. |
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| Keywords: | winter wheat sprinkler irrigation water movement umerical simulation water-saving irrigation model |
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