| 土壤一维垂直入渗控制界面的试验研究 |
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| 引用本文： | 樊贵盛,余翔.土壤一维垂直入渗控制界面的试验研究[J].太原理工大学学报,2011,42(3):277-280,296. |
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| 作者姓名： | 樊贵盛 余翔 |
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| 作者单位： | 太原理工大学水利科学与工程学院,太原,030024 |
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| 基金项目： | 国家自然科学基金项目，山西省科技攻关项目 |
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| 摘 要： | 基于不同土壤结构条件下的大田土壤水分入渗试验,通过分析对比结构良好表层土壤(容重在1.2~1.4 g/cm3之间)与特别疏松的表层土壤(容重在1.0~1.2 g/cm3之间)入渗率过程的特性和差异,揭示了土壤稳定入渗控制界面下移的现象。在对土壤的干容重与稳定入渗率之间的关系进行分析的基础上,确定了不同表层土壤结构条件下的入渗控制界面的位置。研究结果表明,结构良好的土壤的入渗控制界面在表层,特别疏松的土壤的入渗控制界面则在犁底层;入渗控制界面在表层的入渗属于无压入渗,入渗控制界面在犁底层的入渗属于非饱和土壤的有压入渗。
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| 关 键 词： | 一维垂直入渗 干容重 表层土壤 犁底层 控制界面 |
Study on Control Interface of One-dimensional Vertical Infiltration of Soil |
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| FAN Gui-sheng,YU Xiang.Study on Control Interface of One-dimensional Vertical Infiltration of Soil[J].Journal of Taiyuan University of Technology,2011,42(3):277-280,296. |
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| Authors: | FAN Gui-sheng YU Xiang |
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| Institution: | FAN Gui-sheng,YU Xiang(College of Water Resource Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | Based on water infiltration of field soil under different structural conditions,the phenomenon was revealed that the control interface of steady infiltration rate of soil was depressed by analyzing and comparing the characteristics and differences of infiltration process between well-structured surface soil with bulk density of 1.2 to 1.4 g/cm3 and particularly loose surface soil with bulk density of 1.0 to 1.2 g/cm3.Positions of infiltration control interface under different conditions of surface soil stru... |
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| Keywords: | one-dimensional vertical infiltration dry bulk density surface soil plow pan control interface |
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