What is a Sodosol?

Sodosol soils are soil that have a strong texture contrast between the A and B horizon, with the B horizon be sodic. Australia is know to have a large diveristy and distribution of Sodosols. The colloquial term is sodic duplex soils.

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An example of a Sodosol soil.

The classification of Sodosol is uniform across; sub-order, great group and sub-group, found here.