Reference soil Jamaica 07: Cambisol

JM007

Distribution of Cambisols (rough estimation supplied by soilgrids)

Reference soil JM007: Cambisol

REFERENCES: Hafkenscheid R. 2000. Hydrology and biogeochemistry of tropical montane rain forests of contrasting stature in the Blue Mountains, Jamaica. Thesis Free University Amsterdam

Classification

WRB 2006

WRB 1998

Folic- Cambisol (Alumic Humic Endoskeletic)

Dystri-Endoskeletic- Cambisol (Dystric)

0-37 cm	folic horizon
46-107 cm	cambic horizon

FAO-UNESCO-ISRIC 1988

FAO-UNESCO-ISRIC 1974

DystriFolic Histosol

Dystric Histosol

0-37 cm	histic H horizon
37-56 cm	ochric A horizon
56-107 cm	cambic B horizon

0-37 cm	histic H horizon
37-56 cm	ochric A horizon
56-107 cm	cambic B horizon

Other classification

USDA-NRCS (1999)	Typic Udifolist
USDA-SCS (1975)	Typic Tropofolist

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
37-46	3	-	-	-	-	-	-	-	-	-	28.6
46-56	16	-	-	-	-	-	-	-	-	-	14.5
56-91	42	-	-	-	-	-	-	-	-	-	6.0
91-107	6	-	-	-	-	-	-	-	-	-	10.3

Water retention characteristics

Depth (cm)	Bulk density kg/dm³	Spec. Surf. Area m²/g	COLE cm/cm	Water disp. clay %	Clay % w/w
37-46	0.7	-	-	-	28.6
46-56	0.8	-	-	-	14.5
56-91	0.8	-	-	-	6.0
91-107	0.9	-	-	-	10.3

Other physical data

Depth (cm)	Bulk density kg/dm³	pF 0 % v/v	pF 1.0 % v/v	pF 1.5 % v/v	pF 2.0 % v/v	pF 2.3 % v/v	pF 2.7 % v/v	pF 3.4 % v/v	pF 4.2 % v/v
37-46	0.7	-	-	-	63.8	-	-	-	31.2
46-56	0.8	-	-	-	63.5	-	-	-	23.7
56-91	0.8	-	-	-	66.3	-	-	-	29.7
91-107	0.9	-	-	-	63.4	-	-	-	29.5

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
0-9	4.7	-	-	-	-	-	-	-	-	33.5	14.3	1.4	1.1	50.3
9-23	4.3	-	-	-	-	-	-	-	-	26.3	12.9	2.1	1.6	42.9
23-37	3.9	-	-	-	-	-	-	-	-	2.1	9.7	1.3	1.3	14.4
37-46	3.9	-	-	-	-	0.58	19	-	-	0.1	0.2	0.1	0.1	0.5
46-56	4.6	-	-	-	-	0.17	16	-	-	0.1	0.1	0.0	0.1	0.3

Depth (cm)	CaSO4.2H2O %	P Bray mg/kg	P Olsen mg/kg	pH CaCl2	clay_noncarbonate % w/w	clay_carbonate % w/w	phosphorus4 mg/kg	phosphorus1 mg/kg	total_sulfur % w/w
0-9	-	-	-	4.3	-	-	-	-	-
9-23	-	-	-	3.3	-	-	-	-	-
23-37	-	-	-	2.5	-	-	-	-	-
37-46	-	-	-	3.0	-	-	-	-	-
46-56	-	-	-	3.7	-	-	-	-	-

Elemental composition of the soil

Depth (cm)	Al2O3 % w/w	CaO % w/w	Fe2O3 % w/w	K2O % w/w	MgO % w/w	Na2O % w/w	SiO2 % w/w	TiO2 % w/w
37-46	10.9	0.06	5.8	0.4	0.9	0.1	57.5	0.9
46-56	21.3	0.22	5.4	0.4	2.1	0.1	57.0	0.6
56-91	22.3	0.02	4.6	0.9	2.0	0.3	56.4	0.5
91-107	21.8	0.02	5.2	0.5	2.5	0.2	58.8	0.6

Depth (cm)	Al2O3/Fe2O3 mol/mol	LOI % w/w	MnO2 % w/w	P2O5 % w/w	SiO2 / Al2O3 mol/mol	SiO2/Fe2O3 mol/mol	SiO2 / R mol/mol
37-46	-	23.3	0.0	0.1	-	-	-
46-56	-	12.7	0.0	0.1	-	-	-
56-91	-	12.8	0.0	0.1	-	-	-
91-107	-	10.3	0.0	0.1	-	-	-

Profile description

Oi 0-9 cm	leaves slightlyhighly porous (>60 vol%),
Oe1 9-23 cm	very dark brown (7.5YR 2/2, moist)organic moderately,platy,loose,highly porous (>60 vol%),many very fine and fine roots,clear wavy boundary to,
Oe2 23-37 cm	organic moderatelygranular,friable,highly porous (>60 vol%),many very fine and fine roots,abrupt smooth boundary to,
Ah 37-46 cm	dark brown (7.5YR 3/2, moist)clay loam,granular,sticky plastic,moderately porous (40-60 vol%),few very fine and fine roots,frequent weathered andesite fragments,clear smooth boundary to,
Bh 46-56 cm	very dark greyish brown (10YR 3/2, moist)silt loam slightly stony,subangular blocky,loose,(7.5YR 5/2) and (5YR 5/2),moderately porous (40-60 vol%),few coarse roots,many stones weathered andesite fragments,clear irregular boundary to,
Bw 56-91 cm	(7.5YR 4/3.5, moist)clay loam gravelly,fine subangular blocky,many pores highly porous (>60 vol%),few roots,clear irregular boundary to,
Bw 56-91 cm	sandy clay loam gravelly

Depth1	100cm
Kind 1 (parent material) ; Parker (eds), 1984	andesite
Mode of accumulation or deposition of parent material	ejecta ash
Remarks on Parent Materials	andesitic tuff and lava; Purple Volcanics Formation of Cretaceous age
Soil Depth	100cm
Texture of parent material	loamy
Texture of parent material (second entry)	loamy
Weathering Resistance	poor
General characterization of the status of weathering of solid rock	partial / moderate

Remarks on Land Use / Vegetation	VEGETATION: Dominant species Lyonia cf. octandra, Chaetocarpus globosus and Cyrilla racemiflora. Also abundant Elaphoglossum latifoliue, bromeliads and mosses (Leucobryum gigantum).
Status of vegetation; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	primary
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	closed forest

Altitude	1620m
Physiographic Unit	ridge, moderately sloping in NNE direction
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.	mountain
Slope	25%
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	mountainous

Drainage class ; FAO (2006) - Guidelines for soil description	well
Flooding frequency (FAO, 1986)	never
Moist From - To	0-100cm
Estimated permeability (class) of least permeable part of the profile	high
Estimated run off (class)	rapid

You are here

Reference soil Jamaica 07: Cambisol

Reference soil JM007: Cambisol

Classification