Description of soil BCTYO~~~~~A (TAYLOR)

Rego Black Chernozem

The soil has been disturbed by agriculture.

The soil material is primarily composed of mineral particles.

The water table is not present in the soil at any time.

The growth of plant roots is restricted by the fourth layer.

Undifferentiated

Water is removed from the soil readily but not rapidly. Excess water flows downward readily into underlying pervious material or laterally as subsurface flow. Soils have intermediate available water storage capacity (4-5 cm) within the control section, and are generally intermediate in texture and depth. Water source is precipitation. On slopes subsurface flow may occur for short durations, but additions are equaled by losses.

Massive to moderately-well stratified, nonsorted to poorly sorted sediments with any range of particle sizes from clay to boulders that have reached their present position only by direct, gravity-induced movement. Processes include slow displacements such as creep and solifluction and rapid movements such as earth flows.

Fine (USDA Texture Classes: SC,SIC,C,GSIC).

6 - 40 CaCO₃ equivalent (%)

Used where there is evidence that the lacustrine materials were deposited in contact with glacial ice. One of the following characteristics must be present:

• kettles or an otherwise irregular surface that is neither simply the result of normal settling and compaction in silt nor the result of piping
• slump structures resulting from loss of support caused by melting of retaining ice
• presence of numerous ice-rafted stones in the lacustrine silts.

Moderately Fine (USDA Texture Classes: SCL,FSCL,VFSCL,CL,SICL,GSCL,GL,CBCL).

Undifferentiated acidity and/or calcareousness