Gardner (1958) Fit

Previous pageReturn to chapter overviewReturn to Top Next page

 

 

 

 

 

 

 

 

SVSoils

 

 

The Gardner dialog contains the equation parameters necessary to mathematically represent the SWCC curve with the equation proposed by Gardner (1958). A description of the theory can found in the SVSOILS Theory Manual.

 

ag: The ag field refers to a fitting parameter in the Gardner (1958) equation. The ag parameter is indirectly related to the air-entry value of the soil.

 

ng: The ng field refers to another fitting parameter in the Gardner (1958) equation. The ng parameter is related to the steepness of the SWCC.

 

Fit: The Fit indicates whether the experimental data has been fit with the Gardner (1958) equation.

 

Error: The Error field shows the difference between the fitted data and the laboratory values in terms of R2.

 

Residual WC: The Residual WC field refers to the calculated residual gravimetric water content from the Gardner (1958) equation.

 

AEV: The AEV field shows the air-entry value calculated from the Gardner (1958) fit of the soil-water characteristic curve (kPa).

 

Max. Slope: The Max. Slope refers to the maximum slope (on a semi-log plot) of the Gardner (1958) fit of the soil-water characteristic curve (unitless).

 

Graph:

 Click the graph button at the bottom of the dialog to display a graph.