| 尿素溶液浓度对一维垂直入渗特性影响的试验研究 |
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| 引用本文： | 武海霞,刘建军,赵启明.尿素溶液浓度对一维垂直入渗特性影响的试验研究[J].中国农村水利水电,2011(6). |
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| 作者姓名： | 武海霞 刘建军 赵启明 |
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| 作者单位： | 1. 河北工程大学水电学院,河北邯郸,056021
2. 大连市水利科学研究所,辽宁大连,116013 |
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| 摘 要： | 通过室内试验分析了尿素肥液浓度对一维垂直积水入渗的累积入渗量、湿润锋以及入渗结束后土壤含水量的分布影响.结果表明:累积入渗量和湿润峰运移距离随着尿素肥液浓度的增大而减小;在不同区域,尿素肥液浓度对土壤含水量分布影响不同,在传导区,土壤含水量随着肥液浓度的增大而增大,在湿润区,土壤含水量随着肥液浓度的增大而减小.研究结果可以为农田灌溉施肥技术提供支持.
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| 关 键 词： | 尿素 溶液浓度 垂直一维入渗 |
An Experimental Study of the Influence of Urea Solution Concentration on Characteristic of One-dimensional Vertical Infiltration |
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| WU Hai-xia
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LIU Jian-jun
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ZHAO Qi-ming.An Experimental Study of the Influence of Urea Solution Concentration on Characteristic of One-dimensional Vertical Infiltration[J].China Rural Water and Hydropower,2011(6). |
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| Authors: | WU Hai-xia LIU Jian-jun ZHAO Qi-ming |
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| Institution: | WU Hai-xia1,LIU Jian-jun1,ZHAO Qi-ming2(1.Hebei Engineering University,Handan 056021,Hebei Province,China,2.Dalian Water Resources Research Institute,Dalian 116013,Liaonin Province,China) |
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| Abstract: | Through indoor experiments under one-dimensional infiltration,the influence of urea solution concentration on accumulative infiltration and wetting front and the distribution of soil water after infiltration is analyzed.The results indicate that accumulative infiltration and wetting front transport distance decreases as solution concentration increases.The influence of urea solution concentration on the distribution of soil water is different in different areas.In transmit areas,the moisture content increas... |
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| Keywords: | urea solution concentration one-dimension vertical infiltration |
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