Reference soil United Kingdom 03: Luvisol

GB003

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 GB003: Luvisols

LAND USE: permanent grassland, not ploughed for at least 100 years, tile drained

Classification

WRB 1998

Stagni-Gleyic- Luvisol (Albic Cutanic)

FAO-UNESCO-ISRIC 1988

FAO-UNESCO-ISRIC 1974

Albi-Gleyic Luvisol

Gleyic Luvisol

Local classification:	SSEW: Typical stagnogley soil, intergrading to cambic stagnogley soil. Soil series: Salop

Other classification

USDA-NRCS (1999)	Albaqualf
USDA-SCS (1975)	Ochraqualf aquic fine illitic mesic

Profile description

Ah 0-22 cm	very dark greyish brown (10YR 3/2, moist)clay loam,moderate medium subangular blocky,firm slightly sticky plastic,common fine distinct clear mottles (7.5YR 5/8),moderately porous (40-60 vol%),many fine roots,no inclusions,no fragments,few coprogenic elements,non calcareous 10% HCl,clear wavy boundary to,
Eg/Bg 22-43 cm	brown (7.5YR 5/2, moist)clay loam slightly gravelly,weak coarse subangular blocky,very firm sticky very plastic,many fine faint diffuse mottles (7.5YR 5/6),patchy thin humus cutans,moderately porous (40-60 vol%),common fine roots,few irregular ferruginous nodules,few fine gravel igneous few fine gravel sandstone fragments,few coprogenic elements,non calcareous 10% HCl,abrupt wavy boundary to,
Btg 43-62 cm	reddish brown (5YR 4/3, moist)clay slightly gravelly,moderate medium prismatic parting to coarse angular blocky,very firm sticky very plastic,common fine distinct mottles (5YR 4/4) and few heterogeneous distinct mottles (5G 5/1),broken moderately thick clay cutans,slightly porous (<40 vol%),few fine roots,few irregular gypsiferous nodules,few fine gravel igneous few fine gravel mudstone fragments,non calcareous 10% HCl,abrupt irregular boundary to,
2BCkg1 62-84 cm	dark reddish brown (5YR 3/3, moist)clay slightly gravelly,moderate medium prismatic parting to coarse angular blocky,very firm sticky very plastic,many fine distinct diffuse mottles (5YR 5/6) and many heterogeneous distinct mottles (5GY 5/1),broken moderately thick clay cutans,slightly porous (<40 vol%),few fine roots,frequent spherical calcareous nodules,few fine gravel igneous fragments,strongly calcareous 10% HCl,gradual wavy boundary to,
2BCkg2 84-104 cm	dark reddish brown (5YR 3/3, moist)clay slightly gravelly,weak coarse platy,very firm sticky very plastic,few medium distinct diffuse mottles (10YR 5/4) and few medium prominent mottles (5GY 5/1),broken clay in cracks cutans,slightly porous (<40 vol%),few fine roots,frequent spherical calcareous nodules,few fine gravel igneous rock fragments,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	reddish till derived largely from Triassic rocks
Texture of parent material (second entry)	clayey
General characterization of the status of weathering of solid rock	slightly

Land improvements ; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	draining
Land use or vegetation in the immediate vicinity of the site	intensive grazing
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	grassland

Altitude	15m
Slope	0%
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	flat or almost flat

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Reference soil United Kingdom 03: Luvisol

Characteristics

Reference soil GB003: Luvisols

Classification