title: Analytical solution for soil water redistribution during evaporation process.
abstract: 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.
authors.affiliation: Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan E-mail: tengjidong@163.com.
authors.forename: Jidong
authors.initials: J
authors.lastname: Teng
authors.affiliation: Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan E-mail: tengjidong@163.com.
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Yasufuku
authors.affiliation: Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan E-mail: tengjidong@163.com.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Geotechnical Engineering Research Group, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan E-mail: tengjidong@163.com.
authors.forename: Shiyu
authors.initials: S
authors.lastname: Liu
mesh_terms: D002980:Climate; D003198:Computer Simulation; D057446:Hydrodynamics; D008962:Models, Theoretical; D012987:Soil; D014835:Volatilization; D014872:Water Movements
chemical_list: D012987:Soil