Reference soil Canada 22: Planosol

CA022

Planosols occur in level landscapes throughout the world often associated with broad river valleys.

Characteristics

Soils having an eluvial horizon, the lower boundary of which is marked. within 100 cm from the soil surface, by an abrupt textural change associated with stagnic properties above that boundary. The feature of albeluvic tonguing, however, is lacking.

Distribution of Planosols (rough estimation supplied by soilgrids)

Reference soil CA022: Planosols

Mixture of grassland and depressions ringed with aspen represents a park-like aspect characteristic of the many thousands of square kilometers of hummocky moraine characteristic of the Black and Dark Grey soil zones of the Interior Plains

Classification

WRB 1998

Calci-Gleyic- Planosol (Albic Eutric)

FAO-UNESCO-ISRIC 1988

FAO-UNESCO-ISRIC 1974

Calci-Eutric Planosol

Eutric Planosol

Local classification:	Humic Luvic Gleysol, fine-loamy, mixed, moderately to strongly calcareous, cool, subhumid family

Other classification

USDA-SCS (1975)

Albaqualf aquic clayey mixed frigid

Chemical data

Depth (cm)	Base sat. %	CEC soil cmol(c)/kg	CEC clay cmol(c)/kg	CEC org cmol(c)/kg	ECEC cmol(c)/kg	Al sat. %	ESP %
0-18	-	-	-	-	-	-	0
18-23	-	-	-	-	-	-	0
23-31	-	-	-	-	-	-	0
31-44	-	-	-	-	-	-	0
44-67	-	-	-	-	-	-	0
67-78	-	-	-	-	-	-	0
78-90	-	-	-	-	-	-	0
90-100	-	-	-	-	-	-	0

Profile description

Ap 0-18 cm	black (10YR 2/1, moist)clay loam slightly gravelly,weak to moderate medium granular,slightly hard friable very sticky plastic,non calcareous 10% HCl,abrupt smooth boundary to,
Eg 18-23 cm	dark grey (5Y 4/1, moist)sandy clay loam slightly stony,weak to moderate medium platy,very friable non sticky slightly plastic,common medium prominent mottles (10YR 5/6),non calcareous 10% HCl,
Btg1 23-31 cm	(10YR 3.5/1, moist)clay slightly stony,strong coarse prismatic to moderate medium and coarse subangular blocky,firm sticky very plastic,common medium distinct mottles (10YR 5/6),non calcareous 10% HCl,clear smooth boundary to,
Btg2 31-44 cm	very dark grey (10YR 3/1, moist)clay slightly stony,moderate fine and medium subangular blocky,firm very sticky very plastic,common medium distinct mottles (10YR 5/6),non calcareous 10% HCl,gradual smooth boundary to,
Btg3 44-67 cm	(5Y 4.5/1, moist)clay slightly stony,moderate fine and medium subangular blocky,firm very sticky very plastic,non calcareous 10% HCl,gradual wavy boundary to,
67-78 cm	(5Y 4.5/2, moist)clay loam slightly stony,weak to moderate fine and medium subangular blocky,firm sticky plastic,slightly calcareous 10% HCl,
Ckg1 78-90 cm	light grey (10YR 7/1, moist)silty clay loam slightly stony,massive,sticky plastic,strongly calcareous 10% HCl,gradual wavy boundary to,
Ckg2 90-100 cm	light grey (5Y 7/2, moist)clay loam slightly stony,weak to moderate medium and coarse subangular blocky,sticky plastic,strongly 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	(very) strongly calcareous, slightly stony loamy glacial till derived from Cretaceous shale, Paleozoic dolomitic limestone and Precambrium granitoid parent rocks
Soil Depth	100cm
Texture of parent material (second entry)	loamy
General characterization of the status of weathering of solid rock	slightly

Major crops	crops (unspecified)
Land improvements ; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	ploughing
Land use or vegetation in the immediate vicinity of the site	arable farming
Remarks on Land Use / Vegetation	VEGETATION: rushes (Saipus sp), sedges (Carex sp) and common reed grass (Phargmites communis)
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	grassland

Altitude	488m
Physiographic Unit	slope
Physiographic position of the site	lower slope
Regional landform; McDonald, R.C., Isbell, R.F. et all, 1984; Australian soil and land survey Field Handbook, Inkata Press, Melbourne.	glacial plain
Slope	3%
Slope Aspect	north
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	undulating

Drainage class ; FAO (2006) - Guidelines for soil description	poor
Dry From - To	0-18cm
(Estimated) maximum (lower) depth to groundwater table	44cm
(Estimated) minimum (upper) depth to groundwater table	18cm
Moist From - To	18-78cm
Estimated permeability (class) of least permeable part of the profile	slow
Estimated run off (class)	slow
Wet From To	78-100cm

Micro relief type: small-scale differences in relief in the direct vicinity of the site (FAO, 1986)	hummocks
Evidence of salt; Soil Survey Manual USDA, 1951	non-saline

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Reference soil Canada 22: Planosol

Characteristics

Reference soil CA022: Planosols

Classification