Kastanozem is a see also of solonetz.

As nouns the difference between kastanozem and solonetz

is that kastanozem is a kind of soil, brighter than chernozem and related to the mollisols, that is rich in humus and originally covered with early maturing native grassland vegetation, which produces a characteristic brown surface layer while solonetz is (fao soil classification) a type of soil with a so-called "natric horizon" within the upper metre of the soil profile and a subsoil with higher clay content than the upper horizon, the latter having more than 15% exchangeable sodium.