The Mualem-van Genuchten fitting parameters α, n, θr, p obtained by RETC code using as input data simultaneously the experimental values of θ(h), Κs and Κ(θ) from experimental one-step outflow data for Type II conductivity regression analysis (logarithmically-transformed conductivity)
Porous medium . | a (cm−1) . | n (–) . | θr (cm3·cm−3) . | p (–) . | RMSE θ (cm3 cm−3) . | RMSE K (cm min−1) . |
---|---|---|---|---|---|---|
Sand | 0.029 | 15.213 | 0.025 | 1.915 | 0.0078 | 0.1800 |
Sandy loam | 0.0197 | 1.981 | 0.017 | 2.491 | 0.0092 | 0.0246 |
Loam | 0.012 | 1.2796 | 0.010 | 2.622 | 0.0094 | 0.0622 |
Silty clay loam | 0.012 | 1.763 | 0.323 | 0.814 | 0.0065 | 0.0397 |
Clay loam | 0.037 | 2.022 | 0.268 | −0.591 | 0.0202 | 0.1278 |
Clay | 0.132 | 1.400 | 0.195 | 0.0001 | 0.0107 | 0.0577 |
Porous medium . | a (cm−1) . | n (–) . | θr (cm3·cm−3) . | p (–) . | RMSE θ (cm3 cm−3) . | RMSE K (cm min−1) . |
---|---|---|---|---|---|---|
Sand | 0.029 | 15.213 | 0.025 | 1.915 | 0.0078 | 0.1800 |
Sandy loam | 0.0197 | 1.981 | 0.017 | 2.491 | 0.0092 | 0.0246 |
Loam | 0.012 | 1.2796 | 0.010 | 2.622 | 0.0094 | 0.0622 |
Silty clay loam | 0.012 | 1.763 | 0.323 | 0.814 | 0.0065 | 0.0397 |
Clay loam | 0.037 | 2.022 | 0.268 | −0.591 | 0.0202 | 0.1278 |
Clay | 0.132 | 1.400 | 0.195 | 0.0001 | 0.0107 | 0.0577 |