Reference soil Georgia 03: Calcisol

GE003

Calcisols occur in regions with distinct dry seasons, as well as in dry areas where carbonate-rich groundwater comes near the surface.

Characteristics

Soils having a (petro-)calcic horizon (horizon with accumulation of secondary calcium carbonates). In addition, they have no diagnostic horizons other than an ochric or cambic horizon, a calcareous argic horizon, or a gypsic horizon beneath a petrocalcic horizon.

Distribution of Calcisols (rough estimation supplied by soilgrids)

Leaflet | ISRIC

Reference soil GE003: Calcisol

Classification

WRB 2014

Calcisol

Local classification:	Cinnamone light

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
0-25	-	0.689	0.56	1.27	2.863	4.543	10	6	37.982	44	45.976
25-48	-	0.35	1.638	1.254	2.395	4.011	9.7	8.5	36.688	45.2	45.078
48-120	-	0.309	0.309	1.367	2.007	2.801	6.8	8.5	35.277	43.8	49.353
120-170	-	0.567	0.862	0.949	1.561	3.012	7	4.7	47.224	51.9	41.134

Water retention characteristics

Depth (cm)	Bulk density kg/dm³	Spec. Surf. Area m²/g	COLE cm/cm	Water disp. clay %	Clay % w/w
0-25	-	-	-	-	45.976
25-48	-	-	-	-	45.078
48-120	-	-	-	-	49.353
120-170	-	-	-	-	41.134

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
0-25	7.99	7.17	0.563	27.825	2.01	2.092	0.961	-	-	75.47	0.894	0.562	0	77
25-48	7.75	7.17	2.275	25.783	1.346	0.157	8.601	-	-	217.843	0.822	0.95	0	219.6
48-120	7.8	7.17	2.33	24.593	1.969	0.232	8.497	-	-	105.346	1.207	0.539	0	107
120-170	7.79	7.18	2.441	27.544	1.245	0.158	7.868	-	-	132.511	2.066	0.775	0.258	135.7

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 %
0-25	100	32.228	-	-	-	-	-
25-48	100	28.165	-	-	-	-	-
48-120	100	32.634	-	-	-	-	-
120-170	100	28.488	-	-	-	-	-

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
0-25	0.015	-	2.218	7.72	36.132	9.843	-	-	0.141
25-48	8.935	-	0.714	7.72	35.987	9.092	-	-	1.593
48-120	0.668	-	1.483	7.71	40.782	8.571	-	-	0.559
120-170	0.445	-	0.967	7.7	32.652	8.483	-	-	0.699

Profile description

Ah 0-25 cm
AB 25-48 cm
Bwi 48-120 cm
C 120-170 cm

Intensity of the soil erosion type	moderate
Soil erosion type	sheet erosion
Classification of total area affected by erosion and deposition	25%-50%

Land improvements ; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	vegetation disturbed (not specified)
Land use or vegetation in the immediate vicinity of the site	ranching
Remarks on Land Use / Vegetation	Shrub on north slope
Major vegetation type; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	xeromorphic shrub

Altitude	459m
Hierarchy of major landforms	medium-gradient hill
Physiographic Unit	middle slope (back slope) in undulating to mountainous terrain
Slope Aspect	south-east
Form of the slope surrounding the site	complex (irregular)
Topography; Guidelines for soil description - Fourth edition (FAO, Rome, 2006)	strongly sloping

Drainage class ; FAO (2006) - Guidelines for soil description	well drained
Depth to groundwater table	> 200cm

Surface stoniness class (FAO (2006) - Guidelines for soil description)	very few (0-2%)
Average size of stone	medium gravel (0.6-2.0 cm)
Surface cracking	no cracks observed
Classification of salt characteristics - cover	none (0-2%)

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Reference soil Georgia 03: Calcisol

Characteristics

Reference soil GE003: Calcisol

Classification