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Table 1

The Mualem-van Genuchten parameters α, n, θr obtained by RETC code

Porous medium RETC
Experimental
α (cm−1)n (–) θr (cm3 cm−3)θs (cm3 cm−3)Ks (cm min−1)
Sand   1st scenario   
  0.029 13.746 0.020 0.275 0.521 
  2nd scenario  
Type Ι 0.029 14.219 0.026 0.275 0.521 
Type ΙΙ 0.030 15.978 0.057 0.275 0.521 
Sandy loam   1st scenario   
 0.019 1.941 0.470 0.292 
  2nd scenario   
Type Ι 0.025 1.666 0.008 0.470 0.292 
Type ΙΙ 0.026 1.875 0.086 0.470 0.292 
Loam  1st scenario   
 0.013 1.257 0.547 0.049 
  2nd scenario   
Type Ι 0.014 1.250 0.547 0.049 
Type ΙΙ 0.016 1.261 0.056 0.547 0.049 
Silty clay loam  1st scenario   
 0.013 1.154 0.493 0.0032 
  2nd scenario   
Type Ι 0.012 1.639 0.305 0.493 0.0032 
Type ΙΙ 0.013 1.742 0.326 0.493 0.0032 
Clay loam  1st scenario   
 0.080 1.169 0.498 0.0247 
  2nd scenario   
Type Ι 0.029 4.563 0.308 0.498 0.0247 
Type ΙΙ 0.026 2.342 0.259 0.498 0.0247 
Clay  1st scenario   
 0.083 1.644 0.229 0.569 0.547 
  2nd scenario   
Type Ι 0.057 1.291 0.569 0.547 
Type ΙΙ 0.115 1.422 0.191 0.569 0.547 
Porous medium RETC
Experimental
α (cm−1)n (–) θr (cm3 cm−3)θs (cm3 cm−3)Ks (cm min−1)
Sand   1st scenario   
  0.029 13.746 0.020 0.275 0.521 
  2nd scenario  
Type Ι 0.029 14.219 0.026 0.275 0.521 
Type ΙΙ 0.030 15.978 0.057 0.275 0.521 
Sandy loam   1st scenario   
 0.019 1.941 0.470 0.292 
  2nd scenario   
Type Ι 0.025 1.666 0.008 0.470 0.292 
Type ΙΙ 0.026 1.875 0.086 0.470 0.292 
Loam  1st scenario   
 0.013 1.257 0.547 0.049 
  2nd scenario   
Type Ι 0.014 1.250 0.547 0.049 
Type ΙΙ 0.016 1.261 0.056 0.547 0.049 
Silty clay loam  1st scenario   
 0.013 1.154 0.493 0.0032 
  2nd scenario   
Type Ι 0.012 1.639 0.305 0.493 0.0032 
Type ΙΙ 0.013 1.742 0.326 0.493 0.0032 
Clay loam  1st scenario   
 0.080 1.169 0.498 0.0247 
  2nd scenario   
Type Ι 0.029 4.563 0.308 0.498 0.0247 
Type ΙΙ 0.026 2.342 0.259 0.498 0.0247 
Clay  1st scenario   
 0.083 1.644 0.229 0.569 0.547 
  2nd scenario   
Type Ι 0.057 1.291 0.569 0.547 
Type ΙΙ 0.115 1.422 0.191 0.569 0.547 

Note: Input data used were: (i) the experimental values of θ(h) and Κs (1st scenario); and (ii) the experimental values of θ(h), Κs and Κ(θ) from one-step outflow data (2nd scenario) for the two types of conductivity model (Type I and Type II), as well as the experimental θs and Ks values.

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