Diagnostics of solonetzes according to the clay profile differentiation

The classification of solonetzes (including the scheme developed by Fridland et al.) does not take into account the thickness of the solonetzic horizon and the depth of the lower boundary of the illuvial horizon. The degree of solonetzicity is only judged from the content of absorbed sodium in the illuvial horizon. For the diagnostics of solonetzes, the authors propose two additional characteristics: the degree of illuviation (weak, medium, strong, and very strong (for solonetzes)) and the depth and kind of illuviation (typical medium-profile, lithogenic medium-profile, deep-profile, and high-profile). As an example, data on some soils of Ukraine are presented.