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Kurosols (Australian Soil Classification) are soils that have strong texture contrast between the surface (A) horizons and the clay subsoil (B) horizons. The subsoil is strongly acid, i.e. pH is 5.4 or less in water, and non-sodic (at least in the upper horizons).
Red Kurosol in north-east Victoria
Brown Kurosol near Fish Creek in southern Gippsland
|Brown and Yellow Kurosols are most prevalent on some of the less steep hills in the Otway Ranges, to the north of Lorne, and on lower slopes and valleys in the deeply dissected terrain in the Heytesbury region. They are most likely to occur in areas with average annual rainfall of over 600 mm. Soil pit site SW31 is an example of a Brown Kurosol soil profile near Gerangamete. In far western south-west Victoria, in the Portland region, Kurosols with sandier surface horizons are common.|
In Gippsland, Brown Kurosols generally occur in higher rainfall parts of the region and have largely developed on Palaeozoic sediments and some on the Cretaceous and Tertiary sediments. Soil pit site SG11 is an example of a Brown Kurosol near Fish Creek.
In north-east Victoria, Red Kurosols are widespread on the lower valley slopes, fans, higher terraces and residual hills in higher rainfall areas. Soil pit site NE26 is an example of a Red Kurosol profile in the Tallangatta Valley.