A Low-Cost Automated Test Column to Estimate Soil Hydraulic Characteristics in Unsaturated Porous Media

Table 1

Soil hydraulic parameters for different soils used to estimate the soil hydraulic functions according to the formulation of van Genuchten [17] (Figure 5).

Soil	(cm^3 cm^−3)	(cm^3 cm^−3)	α (cm^−1)	(—)	(—)	(—)	(cm⋅h^−1)
	0.045	0.430	0.145	2.680	0.627	0.5	29.70
Sandy	0.065	0.410	0.075	1.890	0.471	0.5	4.42
Loamy	0.057	0.410	0.124	2.280	0.561	0.5	14.59
ATC sand	0.055	0.420	0.130	1.900	0.474	0.5	21.00

extracted from Carsel and Parrish [18].