Reference soil United Kingdom 01: Cambisol

GB001

Cambisols occur mainly in the temperate and boreal regions of the world, where the soil’s parent material is still young or where low temperatures slow down the processes of soil formation.

Characteristics

Soils having either a cambic horizon (a horizon showing evidence of alteration with respect to the underlying material), or a mollic horizon overlying a subsoil, which has a base saturation of less than 50 percent in some part within 100 cm from the soil surface, or one of the following diagnostic horizons within the specified depth: an andic, vertic, or vitric horizon starting between 25 and 100 cm; a (petro-)plinthic or salic horizon starting between 50 and 100 cm, in absence of loamy sand or coarser textures above these horizons.

Distribution of Cambisols (rough estimation supplied by soilgrids)

Reference soil GB001: Cambisols

Classification

WRB 1998

Calcari-Endogleyic- Cambisol

FAO-UNESCO-ISRIC 1988

FAO-UNESCO-ISRIC 1974

Calcari-Gleyic Cambisol

Gleyic Cambisol

Local classification:	SSEW: Stagnogleyic brown calcareous earth, intergrading to typical calcareous pelosol. Soil series: Cannamore/Hanslope intergrade

Other classification

USDA-NRCS (1999)	Rendollic Eutrudept
USDA-SCS (1975)	Rendollic Eutrochrept udic fine calcareous mesic

Profile description

Ap 0-28 cm	dark brown (10YR 3/3, moist)clay loam slightly stony,massive,very firm sticky very plastic,moderately porous (40-60 vol%),few fine roots,few stones fresh flint fragments,slightly calcareous 10% HCl,abrupt smooth boundary to,
Bw 28-48 cm	yellowish brown (10YR 5/4, moist)clay slightly stony,moderate coarse angular blocky,very firm sticky very plastic,broken thin clay and humus on pedfaces cutans,moderately porous (40-60 vol%),few fine roots,few stones fresh flint fragments,calcareous 10% HCl,abrupt wavy boundary to,
BC(g) 48-68 cm	brown (10YR 5/3, moist)clay stony,moderate coarse angular blocky,very firm sticky very plastic,common fine distinct clear mottles (10YR 5/6),broken thin humus on pedfaces cutans,moderately porous (40-60 vol%),few fine roots,common stones fresh flint fragments,few pedotubules,strongly calcareous 10% HCl,clear wavy boundary to,
BCgk 68-110 cm	grey (10YR 5/1, moist)clay very stony,moderate coarse angular blocky,very firm sticky very plastic,common fine prominent clear mottles (10YR 5/6),broken thin pressure on rock fragments cutans,slightly porous (<40 vol%),few fine roots,very few calcareous soft segregations,many stones fresh flint 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	chalky boulder clay
Texture of parent material (second entry)	clayey
General characterization of the status of weathering of solid rock	slightly

Major crops	cereals (unspecified)
Land use or vegetation in the immediate vicinity of the site	arable farming

Altitude	71m
Slope	2%
Slope Aspect	south-east
Form of the slope surrounding the site	convex
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	flat or almost flat

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Reference soil United Kingdom 01: Cambisol

Characteristics

Reference soil GB001: Cambisols

Classification