Reference soil Sweden 04: Regosol

SE004

Regosols are found in areas where soil has been eroded to the extent that the underlying unconsolidated materials come near to the surface, or where soil formation has not played an important role, e.g. in desert regions. The name comes from the greek 'rhegos' :blanket meaning young soils on weathering materials.

Characteristics

Soils in medium and fine textured materials, having no distinctive horizons other than an ochric horizon at the surface.

Distribution of Regosols (rough estimation supplied by soilgrids)

Reference soil SE004: Regosols

Location: 2 km W of Degeberga (Linderoedsaasen), 1400 W from railway crossing the road to Vollsjoe, 100 m N of road. C1: Sand with many shell fragments.

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Physical characteristics

Particle size distribution

Depth (cm)	Gravel % v/v	very coarse sand % w/w	coarse sand % w/w	medium sand % w/w	fine sand % w/w	very fine sand % w/w	Total sand % w/w	coarse silt % w/w	fine silt % w/w	Total silt % w/w	Clay % w/w
0-15	17	-	-	-	-	-	89.6	3.3	3.7	7	3.4
17-35	0	-	-	-	-	-	84.8	5.8	6	11.8	3.4
45-65	0	-	-	-	-	-	93.8	4	0.9	4.9	1.3
65-100	0	-	-	-	-	-	97.4	1.2	0.2	1.4	1.2

Water retention characteristics

Depth (cm)	Bulk density kg/dm³	Spec. Surf. Area m²/g	COLE cm/cm	Water disp. clay %	Clay % w/w
0-15	-	-	-	-	3.4
17-35	-	-	-	-	3.4
45-65	-	-	-	-	1.3
65-100	-	-	-	-	1.2

Chemical data

Depth (cm)	pH H2O	pHKCl	EC 1: 2.5 dS/m	CaCO3 % w/w	C % w/w	N %	C / N	Exch. Acid cmol(c)/kg	Exch. Al cmol(c)/kg	Ca cmol(c)/kg	Mg cmol(c)/kg	K cmol(c)/kg	Na cmol(c)/kg	Sum Cations cmol(c)/kg
0-15	7.7	7.2	0.11	1.7	0.92	0.08	12	-	-	5.0	0.2	0.1	0.0	5.3
17-35	7.8	7.0	0.06	0.1	0.29	0.02	14	-	-	3.0	0.1	0.1	0.0	3.2
45-65	7.7	7.1	0.07	0.2	0.09	0.01	9	-	-	1.8	0.0	0.1	0.0	1.9
65-100	8.6	8.3	0.19	27	0.04	0.01	4	-	-	3.3	0.1	0	0.0	3.4

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 %
0-15	90	5.9	174	3.2	-	-	-
17-35	80	4	118	1.0	-	-	-
45-65	86	2.2	169	0.3	-	-	-
65-100	-	0.9	75	0.1	-	-	-

Profile description

Ah 0-16 cm	dark brown (10YR 3/3, moist)Description sand slightly gravelly,very weak crumb,loose very friable non sticky non plastic,no cutans,no inclusions,no fragments,clear smooth boundary to,
Bw 16-40 cm	dark yellowish brown (10YR 4/6, dry)Description sand slightly gravelly,structureless,loose loose non sticky non plastic,no cutans,no inclusions,no fragments,gradual smooth boundary to,
40-100 cm	(10YR 5.5/4, dry)Description sand,structureless,loose loose non sticky non plastic,no cutans,no inclusions,no fragments,abrupt irregular boundary to,
C 100-130 cm	(10YR 6.5/3, dry)Description sand,structureless,loose loose non sticky non plastic,no cutans,no inclusions,no fragments,

Depth1	100cm
Mode of accumulation or deposition of parent material	marine sediments
Remarks on Parent Materials	calc. marine sands
Texture of parent material (second entry)	sandy
General characterization of the status of weathering of solid rock	slightly

Occurrence of soil aggradation (McDonald et al., 1984)	absent
Slope stability	stable

Main type of irrigation; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	no irrigation
Land use or vegetation in the immediate vicinity of the site	cultivated pasture
Rotation scheme ; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	crop rotation scheme not relevant
Status of vegetation; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	secondary
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	grassland

Altitude	80m
Physiographic Unit	dissected ice pushed hills
Physiographic position of the site	middle slope
Regional landform; McDonald, R.C., Isbell, R.F. et all, 1984; Australian soil and land survey Field Handbook, Inkata Press, Melbourne.	hill
Slope	15%
Slope Aspect	south-east
Form of the slope surrounding the site	convex
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	hilly

Drainage class ; FAO (2006) - Guidelines for soil description	somewhat excessive
Dry From - To	0-130cm
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	high

Evidence of alkali ; Soil Survey Manual USDA, 1951	non-alkaline
Surface cracking	no cracks observed
Slaking of aggregates by tillage, rainfall or frost (USDA/SCS, 1979)	no surface slaking/crusting observed
Micro relief type: small-scale differences in relief in the direct vicinity of the site (FAO, 1986)	level
Microrelief pattern	none
Rock outcrop class (FAO (2006) - Guidelines for soil description)	none
Evidence of salt; Soil Survey Manual USDA, 1951	non-saline
Surface stoniness class (FAO (2006) - Guidelines for soil description)	none

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Reference soil Sweden 04: Regosol

Characteristics

Reference soil SE004: Regosols

Classification