Reference soil Australia 26: Luvisol

AU026

Luvisols occur mainly in temperate regions, particularly in areas with a Mediterranean-type of climate.

Characteristics

Soils having an argic horizon (a subsurface horizon with a distinct higher clay content than the overlying horizon) with a cation exchange capacity equal to or more than 24 cmolc per kg clay throughout.

Distribution of Luvisols (rough estimation supplied by soilgrids)

Reference soil AU026: Luvisols

Classification

WRB 1998

Ferri-Stagnic- Luvisol (Chromic)

FAO-UNESCO-ISRIC 1988

FAO-UNESCO-ISRIC 1974

Chromi-Ferric Luvisol

Ferric Luvisol

Local classification:	HAS: Red Podzolic Soil; FK: Dr3.21

Other classification

USDA-SCS (1975)

Haplustalf ustic fine mixed mesic

Profile description

Ah 0-8 cm	(7.5YR 5.5/3, dry) (7.5YR 4/3, moist)loamy sand,massive,slightly hard friable non sticky non plastic,common very fine pores and few pores moderately porous (40-60 vol%),many very fine roots,non calcareous 10% HCl,abrupt smooth boundary to,
E1 8-20 cm	light brown (7.5YR 6/4, dry) brown (7.5YR 5/4, moist)loamy sand slightly gravelly,massive,slightly hard friable non sticky non plastic,many very fine pores moderately porous (40-60 vol%),common very fine roots,non calcareous 10% HCl,clear boundary to,
E2 20-36 cm	(7.5YR 7/5, dry) (7.5YR 6/5, moist)loamy sand gravelly,massive,slightly hard friable non sticky non plastic,few fine faint clear mottles (5YR 5/6) and few medium faint mottles (5YR 5/6),many very fine pores moderately porous (40-60 vol%),common very fine roots,non calcareous 10% HCl,clear boundary to,
Bt1 36-51 cm	red (2.5YR 5/6, dry) red (2.5YR 4/6, moist)clay gravelly,massive to weak fine subangular blocky,hard firm sticky plastic,few medium distinct clear mottles (7.5YR 5/4),common many very fine very fine pores slightly porous (<40 vol%),few very fine roots,non calcareous 10% HCl,clear boundary to,
Bt2 51-70 cm	red (2.5YR 4/6, moist)clay slightly gravelly,medium angular blocky moderate,hard very firm sticky plastic,many medium distinct clear mottles (5YR 4/6) and many coarse distinct mottles (5YR 4/6),common very fine pores slightly porous (<40 vol%),few very fine roots,very few small spherical soft manganiferous concretions,few fine gravel weathered felspar fragments,non calcareous 10% HCl,clear boundary to,
70-80 cm	red (2.5YR 4/6, moist)clay slightly gravelly,coarse angular blocky moderate,hard very firm sticky plastic,many medium distinct clear mottles (10R 3/6) and many coarse distinct mottles (2.5Y 6/3),few common very fine very fine pores slightly porous (<40 vol%),few very fine roots,few small spherical soft manganiferous concretions few medium spherical soft manganiferous concretions,few fine gravel weathered feldspar frequent medium gravel weathered feldspar fragments,non calcareous 10% HCl,gradual boundary to,
C 80-92 cm	light grey (2.5Y 7/2, dry) light brownish grey (2.5Y 6/2, moist)clay slightly gravelly,massive,hard firm sticky plastic,common fine distinct sharp mottles (2.5YR 3/6) and common medium distinct mottles (10YR 6/4),few pores slightly porous (<40 vol%),few very fine roots,non calcareous 10% HCl,

Kind 1 (parent material) ; Parker (eds), 1984	fine-grained basic igneous rock
Mode of accumulation or deposition of parent material	residual material
Remarks on Parent Materials	Mount Painter porphyry
Soil Depth	92cm

Land improvements ; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	land clearing
Land use or vegetation in the immediate vicinity of the site	cultivated pasture
Remarks on Land Use / Vegetation	VEGETATION: native vegetation is woodland of Eucalyptus (Eucalyptus melliodara, E. blakelyi, Stipa spp. Danthoria spp.), now cleared for improved pasture. LAND USE: grazing on improved pasture
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	semi-deciduous woodland

Altitude	594m
Physiographic Unit	top of a rise
Physiographic position of the site	crest
Regional landform; McDonald, R.C., Isbell, R.F. et all, 1984; Australian soil and land survey Field Handbook, Inkata Press, Melbourne.	low hill
Slope	5%
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	rolling

Drainage class ; FAO (2006) - Guidelines for soil description	moderately well
Dry From - To	0-92cm
Flooding frequency (FAO, 1986)	never
Kind of ground water table (USDA, 1979)	no groundwater table observed
Estimated permeability (class) of least permeable part of the profile	moderate
Estimated run off (class)	medium

Evidence of alkali ; Soil Survey Manual USDA, 1951	non-alkaline
Evidence of salt; Soil Survey Manual USDA, 1951	non-saline

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Reference soil Australia 26: Luvisol

Characteristics

Reference soil AU026: Luvisols

Classification