Peculiarities of red color soils introduced in the Red Book of the Soils of Georgia

The article reviews the peculiarities of red color soils that are distributed in West Georgia. Objectives for the research are Red soils and Terra Rossa soils. From red color soils that occur in humid subtropical zone one is well-studied Red soil and another is Terra Rossa that are distributed fragmentally and are formed on carbonate parent materials. In general, Red soils by morphological and genesis approaches of WRB system correspond to reference soil group of Ferrasols that have principal qualifier Stagnic. Terra Rossa belongs to the group of Leptosols according to the same international classification system. Due to formation on carbonate rocks it has the principal qualifier Rendzic, Because of a red color and the level of a base saturation, other qualifiers are: Brunic and Eutric. Red soils belong to “Standard” and Terra Rossa to “Rare” groups of Red Book of the Soils of Georgia.