Reference soil Canada 06: Solonetz

CA006

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 CA006: Solonetz

Classification

WRB 2006		WRB 1998
		Hypocalci-Hyposalic Solonetz (Aridic)
FAO-UNESCO-ISRIC 1988		FAO-UNESCO-ISRIC 1974
Hyposali-Haplic Solonetz		Orthic Solonetz

Local classification	Dark Brown Solodized Solonetz - Solod intergrade

Other classification

USDA-SCS (1975)	Natriboralf aridic fine-loamy mixed (calcareous) frigid

Location:

Raville, Saskatchewan

Profile description

Ah 0-5 cm	brown (10YR 5/3, dry)loam,moderate medium and coarse subangular blocky and moderate fine and medium platy,slightly hard,
5-20 cm	(10YR 5.5/2, dry)loam,moderate medium and coarse prismatic and strong medium subangular blocky,slightly hard,
Btn 20-37 cm	very dark greyish brown (10YR 3/2, dry)clay loam,strong medium and coarse columnar and strong medium and coarse angular blocky,very hard,slightly calcareous 10% HCl,
37-56 cm	(10YR 3.5/2, dry)clay loam,strong coarse prismatic parting to strong medium and coarse subangular blocky,very hard,few calcareous crystals few gypsiferous crystals,calcareous 10% HCl,
Ckz1 56-77 cm	very dark brown (10YR 2/2, dry)clay loam,massive parting to strong fine and medium subangular blocky,few fine and medium gravel weathered shale fragments,slightly calcareous 10% HCl,
Ckz2 77-99 cm	(10YR 2/1.5, dry)clay loam,massive parting to strong fine and medium subangular blocky,few calcareous crystals few gypsiferous crystals,slightly calcareous 10% HCl,
Ckz3 99-122 cm	(10YR 2/1.5, dry)massive parting to strong fine and medium subangular blocky,few calcareous crystals few gypsiferous crystals,slightly calcareous 10% HCl,

Kind 1 (parent material) ; Parker (eds), 1984	mixed lithology and composition
Mode of accumulation or deposition of parent material	glacial till
Remarks on Parent Materials	gypsiferous and saline glacial till containing Upper Cretaceous shale
Texture of parent material (second entry)	loamy
General characterization of the status of weathering of solid rock	slightly

Land use or vegetation in the immediate vicinity of the site	semi-natural grassland, grazed
Remarks on Land Use / Vegetation	VEGETATION: Boutaloua-Agropyron plant community; Bouteloua gracilis (Blue gramagrass), Agropyron smithii (western weed grass), Stipa comata (Common spear grass), Grindeli squarrosa (Gum weed), Opintia polycantha (Prickly-pear catus) and Distichlis stricta (Salt grass)
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	grassland

Altitude	640m
Physiographic Unit	plain with microdepressions
Physiographic position of the site	flat
Regional landform; McDonald, R.C., Isbell, R.F. et all, 1984; Australian soil and land survey Field Handbook, Inkata Press, Melbourne.	glacial plain
Slope	0%
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	flat or almost flat

Drainage class ; FAO (2006) - Guidelines for soil description	imperfect
Dry From - To	0-122cm
Estimated permeability (class) of least permeable part of the profile	slow
Estimated run off (class)	medium

Rock outcrop class (FAO (2006) - Guidelines for soil description)	none
Surface stoniness class (FAO (2006) - Guidelines for soil description)	none

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Reference soil Canada 06: Solonetz

Characteristics

Reference soil CA006: Solonetz

Classification