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李红星,蔡焕杰,王 健,赵伟霞.以水面蒸发量为参考推求土壤实际蒸发量的数学模型[J].农业工程学报,2008,24(3):.DOI:
以水面蒸发量为参考推求土壤实际蒸发量的数学模型
投稿时间:2007-07-12  修订日期:2007-11-23
中文关键词:  水面蒸发  土壤实际蒸发  土壤温度  地表水循环
基金项目:国家“863”计划项目(2006AA100202)
作者单位
李红星 西北农林科技大学教育部旱区农业水土工程重点实验室杨凌 712100 
蔡焕杰 西北农林科技大学教育部旱区农业水土工程重点实验室杨凌 712100 
王 健 西北农林科技大学教育部旱区农业水土工程重点实验室杨凌 712100 
赵伟霞 西北农林科技大学教育部旱区农业水土工程重点实验室杨凌 712100 
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中文摘要:为了准确估算土壤在实际条件下的蒸发量,该文以水面蒸发量为参考,结合能量平衡方程及微气象学方法,推导计算土壤实际蒸发量的数学模型。结果表明所建模型所需参数为水面及蒸发土壤表面的日最高温度和日平均温度、水面日蒸发量、风速等。模型的验证结果表明计算的土壤蒸发量与实测蒸发量比较吻合(R2=0.90)。模型所引入的参考蒸发面使其避开了土壤蒸发复杂的物理本质,从而使得对土壤蒸发的计算变得简单易行。
Li Hongxing,Cai Huanjie,Wang Jian,Zhao Weixia.Model for estimating soil evaporation based on water surface evaporation[J].Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE),2008,24(3):.DOI:
Model for estimating soil evaporation based on water surface evaporation
Author NameAffiliation
Li Hongxing Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education,Northwest Agriculture and Forestry University,Yangling 712100,China 
Cai Huanjie Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education,Northwest Agriculture and Forestry University,Yangling 712100,China 
Wang Jian Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education,Northwest Agriculture and Forestry University,Yangling 712100,China 
Zhao Weixia Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education,Northwest Agriculture and Forestry University,Yangling 712100,China 
Key words:water surface evaporation  soil evaporation  soil temperature  surface water cycle
Abstract:A mathematic model of soil evaporation based on water surface evaporation by using the method of energy balance equation and microclimatology was established to precisely estimate the soil evaporation. The results show the parameters such as the diurnal maximum and average temperature in the water surface and drying soil surface, diurnal water surface evaporation, and wind speed are involved in the model. The verified results of the model indicate that the theoretical values fit well with measured ones (R2=0.90). The complex physical process of soil evaporation is avoided in the model for the introduction of reference evaporation surface, which makes the soil evaporation be easy to be calculated.
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