Reference soil Ukraine 02: Solonetz

UA002

Solonetzes occur where a sodium source supplies the clay-rich subsoil with exchangeable Na, causing peptization of clay and organic substances and deterioration of the topsoil.

Characteristics

Soils having a natric horizon (a subsurface horizon with distinct higher clay content than the overlying horizon and more than 15% exchangeable sodium) within 100 cm from the soil surface.

Distribution of Solonetz (rough estimation supplied by soilgrids)

Reference soil UA002: Solonetz

Former SU009. Profile description:
BA: dry colour also grey (10YR 5/1).
BC and C: stratified and compact
C: some bluish spots

Classification

WRB 2014

Solonetz

Profile description

Ah 0-9 cm	greyish brown (10YR 5/2, dry) dark greyish brown (10YR 4/2, moist)silty clay loam,weak fine columnar parting to fine crumb,slightly hard friable sticky plastic,few very fine fine pores,many very fine many fine roots,nil,clear wavy boundary to,
BA 9-22 cm	dark greyish brown (10YR 4/2, dry) very dark greyish brown (10YR 3/2, moist)silty clay loam,moderate fine and medium columnar parting to fine crumb,slightly hard very friable slightly sticky non plastic,few very fine pores,common very fine common fine roots,nil,gradual smooth boundary to,
Btn 22-43 cm	pale brown (10YR 6/3, dry) brown (10YR 5/3, moist)silty clay,weak to moderate fine and medium columnar parting to very fine angular blocky,slightly hard friable sticky plastic,few very fine pores,few very fine roots,nil,gradual smooth boundary to,
43-56 cm	very pale brown (10YR 7/3, dry) brown (10YR 5/3, moist)silty clay,structureless,hard friable sticky plastic,few very fine pores,nil,diffuse smooth boundary to,
C 56-110 cm	very pale brown (10YR 7/3, dry) yellowish brown (10YR 5/4, moist)silty clay,structureless,hard friable sticky plastic,few very fine pores,nil,

Occurrence of soil aggradation (McDonald et al., 1984)	not apparent
Slope stability	stable

Land use or vegetation in the immediate vicinity of the site	semi-natural grassland, grazed
Remarks on Land Use / Vegetation	Poa bulbosa,Plantago sp,Atemisia maritim
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	herbaceous

Altitude	10m
Physiographic Unit	very gentle slope
Regional landform; McDonald, R.C., Isbell, R.F. et all, 1984; Australian soil and land survey Field Handbook, Inkata Press, Melbourne.	plain
Slope	1%
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	flat or almost flat

Drainage class ; FAO (2006) - Guidelines for soil description	moderately well
Kind of ground water table (USDA, 1979)	apparent
Estimated permeability (class) of least permeable part of the profile	slow
Estimated run off (class)	slow

Evidence of alkali ; Soil Survey Manual USDA, 1951	moderately alkaline
Microrelief pattern	none
Rock outcrop class (FAO (2006) - Guidelines for soil description)	none
Evidence of salt; Soil Survey Manual USDA, 1951	moderately saline
Surface stoniness class (FAO (2006) - Guidelines for soil description)	none

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Reference soil Ukraine 02: Solonetz

Characteristics

Reference soil UA002: Solonetz

Classification