| 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。 |
| 关键词: 积水入渗，土壤空气压力（气阻），重粉质粘土 |
| DOI： |
| 分类号:S275.3 |
| 基金项目:国家自然科学基金资助项目 |
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| Soil Air Resistance Changes of Accumulated Water Infiltration and Their Effects on the Infiltration Parameters |
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Li Yuanlong Lin Xingcui,Li Yuanlong Lin Xingcui
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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. |
| Key words: accumulated water infiltration, soil air pressure ( resistance ),heavy silt clay |
