| Vertisol | |
|---|---|
 A vertisol profile | |
| Used in | WRB, USDA soil taxonomy |
| WRB code | VR |
| Profile | OAC |
| Key process | clay pedoturbation |
| Climate | tropical savanna, semi-arid, humid subtropical, Mediterranean |
A vertisol is a Soil Order in the USDA soil taxonomy[1] and a Reference Soil Group in the World Reference Base for Soil Resources (WRB).[2] It is also defined in many other soil classification systems. In the Australian Soil Classification it is called vertosol.[3] The natural vegetation of vertisols is grassland, savanna, or grassy woodland. The heavy texture and unstable behaviour of the soil makes it difficult for many tree species to grow, and forest is uncommon.
- ^ Soil Survey Staff (2022). "Keys to Soil Taxonomy 13th edition" (PDF). USDA Natural Resources Conservation Service.
- ^ IUSS Working Group WRB (2022). "World Reference Base for Soil Resources, fourth edition" (PDF). International Union of Soil Sciences, Vienna.
- ^ "Australian Soil Classification - Vertosols". CSIRO. Retrieved 8 February 2016.