| 土壤积水入渗的气阻变化及对入渗参数的影响 |
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| 引用本文： | 李援农,林性粹.土壤积水入渗的气阻变化及对入渗参数的影响[J].西北农林科技大学学报(社会科学版),1997,25(3):51-54. |
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| 作者姓名： | 李援农 林性粹 |
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| 作者单位： | 西北农业大学水利与建筑工程学院 |
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| 摘 要： | 在田间采用筒测法和田测法进行积水入渗土壤气阻变化规律及其机理的试验研究，结果表明，积水入渗过程中土壤内空气有一定压力，这一压力对入渗水流产生阻力作用，同时会减小入渗速度。文中列出了气阻减小入渗指数和系数的关系式
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| 关 键 词： | 积水入渗 土壤空气压力（气阻） 重粉质粘土 |
Soil Air Resistance Changes of Accumulated Water Infiltration and Their Effects on the Infiltration Parameters |
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| Li Yuanlong,Lin Xingcui.Soil Air Resistance Changes of Accumulated Water Infiltration and Their Effects on the Infiltration Parameters[J].Journal of Northwest Sci-Tech Univ of Agr and,1997,25(3):51-54. |
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| Authors: | Li Yuanlong Lin Xingcui |
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| Institution: | Li Yuanlong Lin Xingcui ( The College of Water Conservancy and Architectural Engineering,Northwestern Agricultural University, Yangling, Shaanxi 712100) |
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| Abstract: | In this paper, with the tube measurement and field measurement, the air resistance changes of accumulated water infiltration and their mechanism have been studied. The results show that certain air pressure in soil exists during the infiltration process,inhibits the infiltration, and slows down the infiltration speed. Also, this paper works out the equation between the infiltration index and the coefficient when air resistance decreases. |
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| Keywords: | accumulated water infiltration soil air pressure ( resistance ) heavy silt clay |
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