Jabro (1992), United States.¶
Source¶
Jabro, J. D. (1992). Estimation of saturated hydraulic conductivity of soils from particle size distribution and bulk density data. Transactions of the ASAE, 35(2), 557-560.
Scope¶
Territory: USA
Dataset: Southern Cooperation Series Bulletins (Dan et al., 1983; Nofziger et al., 1983; Quisenberry et al., 1987), 350 samples; validation on Duffield silt loam data.
Functions¶
calc_ptf_jabro1992¶
Estimate saturated hydraulic conductivity from silt, clay, and bulk density.
Status: ready-for-implementation
Prediction target: Saturated hydraulic conductivity from silt, clay, and bulk density.
Models: \(k(h)\) — Saturated hydraulic conductivity
Inputs¶
| Name | Type | Unit | Domain | Description |
|---|---|---|---|---|
silt | number | % | value > 0 | Silt content, 0.002-0.05 mm. |
clay | number | % | value > 0 | Clay content, <0.002 mm. |
bulk_density | number | g/cm^3 | value > 0 | Bulk density. |
Outputs¶
| Name | Unit | Domain | Description |
|---|---|---|---|
k_sat | m/s | value >= 0 | Saturated hydraulic conductivity. |
Note
Sand is not an input to the model.
Warning
The formula uses base-10 logarithms of silt and clay.