| 低压毛管渗灌器水分运移特性研究初报 |
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| 引用本文： | 马小刚,张维江. 低压毛管渗灌器水分运移特性研究初报[J]. 水土保持研究, 2008, 0(6) |
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| 作者姓名： | 马小刚 张维江 |
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| 作者单位： | 宁夏大学土木与水利工程学院;西北退化生态系统恢复与重建省部共建教育部重点实验室; |
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| 基金项目： | 宁夏回族自治区科技公关计划项目“河东沙地灌木林水分高效利用及生命维持系统研究与示范”(05GG-10703); 国家林业局科技支撑计划项目“半干旱区沙地水土资源优化配置与高效利用技术研究”(2006BAD26B0702) |
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| 摘 要： | 通过室内渗灌模拟试验,对低压毛管渗灌器在沙地土壤中水分入渗试验资料进行分析,结果表明:入渗率与入渗时间呈幂函数关系,而累积入渗量与入渗时间呈对数函数关系。湿润体近似于椭球体,并且水平扩散半径大于垂直入渗深度,椭球体的长轴在水平扩散方向左右对称,短轴在垂直入渗方向,上下不对称,且上短下长。
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| 关 键 词： | 低压毛管渗灌器 水分运移 入渗率 |
Preliminary Study of Low-voltage Capillary Infiltration Irrigation on the Water Migration Characteristics |
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| MA Xiao-gang,ZHANG Wei-jiang. Preliminary Study of Low-voltage Capillary Infiltration Irrigation on the Water Migration Characteristics[J]. Research of Soil and Water Conservation, 2008, 0(6) |
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| Authors: | MA Xiao-gang ZHANG Wei-jiang |
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| Affiliation: | MA Xiao-gang1,ZHANG Wei-jiang1,2(1.College of Civil , Water Conservancy Engineering,Ningxia University,Yinchuan 750021,China,2.The Ministry of Education Priority Laboratory of Northwest Degenerate Ecosystem Recover , Reconstruct,China) |
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| Abstract: | Based on the analysis of low-pressure capillary irrigation infiltration simulation test in sandy soil water,the results showed that infiltration rate and the infiltration of time showed the power function relationship,and the accumulated volume of infiltration and infiltration time was a function of the number.Moist body similar to ellipsoid,and the spread of the level of infiltration radius is greater than the vertical depth,ellipsoid level of proliferation in the long axis direction was symmetrical,in the... |
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| Keywords: | low-voltage capillary infiltration irrigation water movement infiltration rate |
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