A Physically Based Runoff Model Analysis of the Querétaro River Basin

Table 3

SHETRAN soil parameters applied to model.

Soil; category	Soil; layer	Soil type	Depth at base of layer (m)	Saturated water content	Residual water content	Saturated conductivity (m/day)	Van Genuchten-Alpha; (cm^−1)^a	Van Genuchten-𝑛^b
1	1	Silt loam; (10% sand : 10% clay)	1	0.452	0.093	0.163	5.15𝐸−03	1.681
2	1	Loamy sand; (85% sand : 6% clay)	1	0.370	0.075	0.467	1.99𝐸−02	1.793
3	1	Sandy silt loam; (35% sand : 10% clay)	1	0.434	0.086	0.317	8.38𝐸−03	1.587
3	2	Silty clay loam; (10% sand : 27% clay)	2	0.507	0.144	0.036	7.24𝐸−03	1.608
3	3	Bedrock	5	0.200	0.030	0.100	3.00𝐸−02	1.900
4	1	Clay loam; (35% sand : 27% clay)	1	0.489	0.153	0.055	9.23𝐸−03	1.657
6	1	Sandy clay; (52% sand : 40% clay)	1	0.499	0.233	0.029	1.07𝐸−02	1.879
7	1	Silty clay; (10% sand : 40% clay)	1	0.529	0.212	0.019	6.54𝐸−03	1.531
8	1	Sandy loam; (65% sand : 10% clay)	1	0.412	0.098	0.622	1.44𝐸−02	1.736

aVan Genuchten exponent 𝛼 for soil moisture content-tension curve in cm⁻¹.
bVan Genuchten exponent 𝑛 for soil moisture content-tension curve.