Calculation of Subgrade Moisture Index in Seasonally Frozen Regions considering Evapotranspiration at Subzero Temperatures and the Pavement Coverage Effect

Table 5

Characteristic values of the volumetric water contents of different soil types [32].

Soil group	Sand	Other sandy soils	Powdery soil	Clayey soil
θs	0.24	0.29	0.33	0.37
θ0	0.18	0.20	0.28	0.34