Black Solod (BL.SO)
Common horizon sequence: Ahe, Ae, AB, Bnt, Ck, Csk
Soils of this subgroup have a solonetzic B horizon as defined for the Solonetzic order and the properties specified for the Solod great group. They are associated mainly with mesophytic grasses and forbs in a subhumid climate, but they also occur in areas of thin or discontinuous shrub and tree cover.
Black Solods have an Ah, Ahe, or Ap horizon with color values lower than 3.5 dry and chromas usually higher than 1.5 dry. They have Ae, AB or BA, and solonetzic B horizons as specified for the great group. They do not have faint to distinct mottles that indicate gleying within the upper 50 cm.
Note: Diagnostic horizons are underlined.