| 非饱和带冻结期土壤温度变化试验研究 |
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| 引用本文： | 吕薛锋,杨军耀.非饱和带冻结期土壤温度变化试验研究[J].太原理工大学学报,2010,41(2). |
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| 作者姓名： | 吕薛锋 杨军耀 |
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| 作者单位： | 1. 陕西省水土保持勘测规划研究所,西安,710004
2. 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： | 国家自然基金资助项目 |
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| 摘 要： | 设计了气温数字控制系统和非饱和带温度场自动监测系统,编制了相应的信息监测与处理软件,研究了非饱和带冻结期土壤温度变化特征。模拟实验结果表明,非饱和带土壤冻结过程中同样的气温降幅条件下,空气温度的变幅(3℃)远大于土壤表面温度的变幅(1℃),砂土要比亚黏土地表温度降幅大;冻结期土壤温度变化具有一定的时间滞后效应,其时间滞后效应随着土壤深度的增加而增大;不同类型土壤,其温度差别主要在土壤表层。
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| 关 键 词： | 非饱和带 温度变化特征 室内模拟试验 |
Experimental Study on Soil Temperature Variation of Unsaturated Zone During Freezing Period |
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| LV Xue-feng,YANG Jun-yao.Experimental Study on Soil Temperature Variation of Unsaturated Zone During Freezing Period[J].Journal of Taiyuan University of Technology,2010,41(2). |
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| Authors: | LV Xue-feng YANG Jun-yao |
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| Institution: | LV Xue-feng1,YANG Jun-yao(1.Shaanxi Province Water , Soil Conservation Survey Plan Research Institute,Xi\'an 710004,China,2.College of Water Resource Science , Technology of TUT,Taiyuan 030024,China) |
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| Abstract: | This paper designed the digital temperature control system and unsaturated zone automatic temperature monitoring system,wrote the information monitoring and processing software,and studied the unsaturated zone soil temperature variation characteristics during the freezing period.In soil freezing process under similar temperature drop condition,the change in air temperature was far bigger than that in soil surface temperature,and the change in sandy soil temperature was bigger than that in clay loam surface.... |
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| Keywords: | unsaturated zone temperature change characteristic experimental simulation study |
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