The pore size
distribution was calculated from the soil water retention curve
following the capillary rise function (Kutílek and Nielsen, 1994):
D¼300=H
where, the equivalent cylindrical diameter of pores,D(mm) was
given by the change of pore cylinders dewatered at the water
potential,H(kPa). The pore size was classed into >30, 30–1 and