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Typical parameter values of van Genuchten models for different soil texture classes (from Leij, Alves, and van Genuchten, 1996)

Soil Texture	Saturated Water Content	Residual Water Content	Empirical Constant alpha (cm^-1)	Empirical Constant n	Saturated Conductivity (cm hr^-1)
Sand	0.43	0.045	0.145	2.68	29.7
Loamy sand	0.41	0.057	0.124	2.28	14.6
Sandy loam	0.41	0.065	0.075	1.89	4.42
Loam	0.43	0.078	0.036	1.56	1.04
Silt	0.46	0.034	0.016	1.37	0.25
Silt loam	0.45	0.067	0.020	1.41	0.45
Sandy clay loam	0.39	0.100	0.059	1.48	1.31
Clay loam	0.41	0.095	0.019	1.31	0.26
Silty clay loam	0.43	0.089	0.010	1.23	0.07
Sandy clay	0.38	0.100	0.027	1.23	0.12
Silty clay	0.36	0.070	0.005	1.09	0.02
Clay	0.38	0.068	0.008	1.09	0.20