| 微型蒸发器口径影响土壤蒸发测量值的试验研究 |
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| 引用本文： | 高晓飞,王晓岚.微型蒸发器口径影响土壤蒸发测量值的试验研究[J].灌溉排水学报,2011,30(1):1-4. |
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| 作者姓名： | 高晓飞 王晓岚 |
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| 作者单位： | 高晓飞,GAO Xiao-fei(北京师范大学,地表过程与资源生态国家重点实验室,北京,100875;北京师范大学,地理学与遥感科学学院,北京,100875);王晓岚,WANG Xiao-lan(北京师范大学,地理学与遥感科学学院,北京,100875) |
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| 基金项目： | 地表过程与资源生态国家重点实验室自由探索项目，国家973计划项目 |
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| 摘 要： | 研究使用70、104、152和193 mm四种口径的微型蒸发器测定了室外裸土和室内裸土的土壤蒸发量.目的是考查蒸发器口径对土壤蒸发量测定值的影响.试验结果显示,在供水条件相同的情况下,70 mm口径微型蒸发器的测量值大于其他口径微型蒸发器的测量值,但在遮阴(室内)条件下,口径的影响会降低.原因可能是70 mm口径微型蒸...
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| 关 键 词： | 微型蒸发器 口径 裸土蒸发 |
Effects of Micro-lysimeter Diameters on Soil Evaporation Measurement |
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| GAO Xiao-fei,WANG Xiao-lan.Effects of Micro-lysimeter Diameters on Soil Evaporation Measurement[J].Journal of Irrigation and Drainage,2011,30(1):1-4. |
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| Authors: | GAO Xiao-fei WANG Xiao-lan |
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| Abstract: | Four types of micro-lysimeter of different diameters,including 70 mm,104 mm,152 mm,and 193 mm,were applied in soil evaporation measurement in filed and indoor.The purpose of this research was to explore the effects of micro-lysimeter diameter on the measured soil evaporation values.The results showed,in the same water condition,the evaporation recorded of 70 mm diameter micro-lysimeter was significantly higher than micro-lysimeters of other diameter;but the effects of diameter would be smaller in the overshadow condition.The possible reason of the effects was the disturbance of environment was biggest for 70 mm diameter micro-lysimeter than other types of micro-lysimeter.The correlations of the measured values of other three types of micro-lysimeter were significant;and the differences of the measured values were small.So,the diameter of micro-lysimeter should not smaller than 104 mm;and,this value might reduce to 70 mm in overshadow condition. |
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| Keywords: | micro-lysimeter diameter soil evaporation |
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