| 棉花苗期滴灌水盐运移数值模拟及试验验证 |
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| 引用本文： | 王伟,李光永,傅臣家,曾德超.棉花苗期滴灌水盐运移数值模拟及试验验证[J].灌溉排水学报,2009,28(1). |
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| 作者姓名： | 王伟 李光永 傅臣家 曾德超 |
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| 作者单位： | 王伟,曾德超,WANG Wei,ZENG De-chao(中国农业大学工学院,北京,100083);李光永,LI Guang-yong(中国农业大学水利与土木工程学院,北京,100083);傅臣家,FU Chen-jia(山东农业大学,机械与电子工程学院,山东,泰安,271018)
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| 摘 要： | 利用Hydrus 2D软件对棉花苗期咸水滴灌水盐运移数学模型进行求解,并由田间实测数据对模拟结果进行了验证。结果表明,土壤水分与盐分浓度的模拟值与实测值吻合良好,在模型建立正确,土壤水分与盐分运动参数选取合理的情况下,Hydrus 2D对于水分与盐分运移的模拟精度均可以满足滴灌系统设计与运行参数选取的要求。在灌水总量相同时,低频灌溉有使表层土体内的盐分积累减少的趋势。
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| 关 键 词： | 滴灌 数值模拟 灌溉频率 |
Numerical Simulation of Salt and Water Distribution from Surface Drip Irrigation of Cotton Seedling |
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| WANG Wei a,LI Guang-yong b,FU Chen-jia,ZENG De-chao a.Numerical Simulation of Salt and Water Distribution from Surface Drip Irrigation of Cotton Seedling[J].Journal of Irrigation and Drainage,2009,28(1). |
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| Authors: | WANG Wei a LI Guang-yong b FU Chen-jia ZENG De-chao a |
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| Institution: | 1.China Agricultural University a.College of Engineering;b.College of Water Conservancy and Civil Engineering;Beijing 100083;China;2.College of Mechatronic Engineering;Shandong Agricultural University;Tai'an 271018;China |
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| Abstract: | A model simulating water and solute distribution under from drip irrigation is established,which is numerically solved using Hydrus 2D software.The simulation result of water and salt distribution is verified using data obtained from experiment that is conducted in the greenhouse.The result indicts that good agreement is obtained between simulated and measured water and solute distribution,and simulating precision of Hydrus 2D is good enough for selecting the design and running parameters of drip irrigation... |
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| Keywords: | drip irrigation numerical simulation irrigation frequency |
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