Soil Zones

Soil zones along with soil profiles define soil blocks. The soil profile defines the variation with depth and the soil zones define the horizontal extents of the block.

Definition

Name

The name is a convenient way of identifying a particular soil zone.

Extents

This is defined in terms of rectangular areas specified by corner x and y co-ordinates. The soil zones are therefore aligned with the Cartesian coordinate system.

Soil zone areas may overlap. If this occurs then the profile relating to the soil zone with highest allocated number will be used in the calculation.

If no soil zone is specified then the first soil profile is assumed to be widespread. Similarly, if displacements are to be calculated for locations that are wide of any soil zones then the first soil profile will be used.