抄録
In the case of field measurement of heat and moisture transfer, a surface layer is treated as a finite thickness to obtain the surface temperature and soil moisture content caused by experimental difficulties. Since the discussion of the surface layer from the viewpoint of engineering is not matured, it is customary that when the energy or mass balances at the soil surface are evaluated, the thickness of soil sampling and set-up depth of soil heat flux plate depend on each researchers experience.
This paper aims to propose an appropriate thickness of the soil surface layer by applying α-β method to a surface layer model and present the characteristics of heat energy and mass balances of the surface layer model under the drying process.
