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Orders: Regosolic - Great Groups

The two groups of the Regosolic order are based on the amount of organic additions to the surface soil layer.

Humic Regosol Great Group
Soils of this great group have an Ah or Ap horizon greater than or equal to 10 cm in depth. (Orthic Humic Regosol)

Regosol Great Group
All other Regosolic soils. In these soils the C horizon is found at the surface, or a thin A horizon directly overlies the C horizon or thin B horizon. (Orthic Regosol Sandy)

 

 

 

 

 

 

 

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