The soil porosity, also called the void fraction, is the ratio of the volume of voids (open spaces, i.e. air and water) in a soil to the total volume. $latex n = \frac{V_v}{V_t}\newline\newline =\frac{V_g + V_w}{V_g + V_w + V_s}&s=2$ Where: Vv = Volume of voids (m3 or ft3) Vt = Total Volume (m3 or […]