Simulating the dynamics of soil water content and modeling soil water evaporation are critical for many environmental and agricultural strategies. The present study aims to develop an analytical solution to simulate soil water redistribution during the evaporation process. This analytical solution was derived utilizing an exponential function to describe the relation of hydraulic conductivity and water content on pressure head. The solution was obtained based on the initial condition of saturation and an exponential function to model the change of surface water content. Also, the evaporation experiments were conducted under a climate control apparatus to validate the theoretical development. Comparisons between the proposed analytical solution and experimental result are presented from the aspects of soil water redistribution, evaporative rate and cumulative evaporation. Their good agreement indicates that this analytical solution provides a reliable way to investigate the interaction of evaporation and soil water profile.
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Research Article|
October 24 2013
Analytical solution for soil water redistribution during evaporation process
Jidong Teng;
1Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
E-mail: tengjidong@163.com
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Noriyuki Yasufuku;
Noriyuki Yasufuku
1Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
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Qiang Liu;
Qiang Liu
1Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
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Shiyu Liu
Shiyu Liu
1Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
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Water Sci Technol (2013) 68 (12): 2545–2551.
Article history
Received:
May 01 2013
Accepted:
August 15 2013
Citation
Jidong Teng, Noriyuki Yasufuku, Qiang Liu, Shiyu Liu; Analytical solution for soil water redistribution during evaporation process. Water Sci Technol 1 December 2013; 68 (12): 2545–2551. doi: https://doi.org/10.2166/wst.2013.516
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Jidong Teng, Noriyuki Yasufuku, Qiang Liu, Shiyu Liu; Analytical solution for soil water redistribution during evaporation process. Water Sci Technol 1 December 2013; 68 (12): 2545–2551. doi: https://doi.org/10.2166/wst.2013.516
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Impact Factor 1.638
CiteScore 2.9 • Q2