Reference soil Spain 10: Acrisol

ES010

Distribution of Acrisols (rough estimation supplied by soilgrids)

Reference soil ES010: Plinthic Acrisols

A small, dark brown, sandy loam surface layer with many gravel and stones, overlying a dark red, clayey subsurface layer. There is plinthic contact within 125 cm.

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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
0-12	44	-	-	-	-	-	-	23.1	14.9	38	10.9
12-22	59	-	-	-	-	-	-	19.4	16.7	36.1	16.9
22-45	10	-	-	-	-	-	-	10.4	9	19.4	57
45-65	2	-	-	-	-	-	-	3.7	5.6	9.3	81.4
65-85	5	-	-	-	-	-	-	7.1	6.5	13.6	78.5
85-105	6	-	-	-	-	-	-	9	15.2	24.2	65.4
105-125	0	-	-	-	-	-	-	14.9	16.7	31.6	56.5

Water retention characteristics

Depth (cm)	Bulk density kg/dm³	Spec. Surf. Area m²/g	COLE cm/cm	Water disp. clay %	Clay % w/w
0-12	-	-	-	-	10.9
12-22	-	-	-	-	16.9
22-45	-	-	-	-	57
45-65	-	-	-	-	81.4
65-85	-	-	-	-	78.5
85-105	-	-	-	-	65.4
105-125	-	-	-	-	56.5

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
0-12	5.9	4.6	-	-	0.83	0.06	14	-	-	2.3	0.4	0.1	0.0	2.8
12-22	5.8	4.4	-	-	0.38	0.04	10	-	-	2.2	0.6	0.1	0.0	2.9
22-45	5.3	3.8	-	-	0.43	0.06	7	-	-	4.7	4.0	0.2	0.1	9
45-65	5.2	3.5	-	-	0.33	0.06	6	-	-	4.9	4.9	0.2	0.3	10.3
65-85	5.1	3.4	-	-	0.31	0.06	5	-	-	3.8	4.7	0.2	0.4	9.1
85-105	5.1	3.3	-	-	0.21	0.06	4	-	-	2.1	3.9	0.2	0.3	6.5
105-125	4.9	3.2	-	-	0.18	0.05	4	-	-	1.4	2.9	0.2	0.3	4.8

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 %
0-12	31	9.1	83	2.9	-	-	-
12-22	36	8.1	48	1.3	-	-	-
22-45	62	14.4	25	1.5	-	-	-
45-65	45	23	28	1.2	-	-	-
65-85	36	25.1	32	1.1	-	-	-
85-105	26	25	38	0.7	-	-	-
105-125	21	22.8	40	0.6	-	-	-

Depth (cm)	pH NaF	P Retention %	ODOE	Al o % w/w	Si o % w/w	Fe d % w/w	Al d % w/w	Fe p % w/w	Al p % w/w	C p % w/w	Fe o % w/w
0-12	0	0	-	0	0	0	0	0	0	-	0

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
0-12	5.2	0.2	2.5	1.0	0.5	-	86.7	0.8
12-22	6.8	0.1	3.1	1.20	0.3	-	84.9	0.9
22-45	18.2	0.3	7	2.0	0.8	-	64.6	0.7
45-65	25.5	0.2	8.8	2.40	1	-	52.0	0.7
65-85	25.8	0.1	8.7	2.70	0.9	-	51.1	0.7
85-105	23.7	0.1	7.9	3.30	1	-	55.3	0.8
105-125	21.5	0.1	7.3	3.20	0.9	-	59.5	0.8

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
0-12	3.3	2.8	0.10	0.10	28.3	92.3	21.7
12-22	3.4	2.8	0	0.10	21.2	72.9	16.4
22-45	4.1	6.5	0	0.10	6	24.6	4.8
45-65	4.5	9.1	0	0.10	3.5	15.7	2.8
65-85	4.7	8.9	0	0.10	3.4	15.6	2.8
85-105	4.7	7.6	0	0.00	4	18.6	3.3
105-125	4.6	6.8	0	0.00	4.7	21.7	3.9

Clay mineralogy

Depth (cm)	Chlorite	Feldspar	Gibbsite	Goethite	Halloysite	Hematite	Kaolinite	Mica / illite	Mixed-layer	Quartz	Smec	Vermiculite
0-12	-	very weak to weak	-	-	-	-	strong	strong	very weak to weak	-	-	-
12-22	-	very weak to weak	-	-	-	-	strong	strong	very weak to weak	-	-	-
22-45	-	very weak to weak	-	-	-	-	very strong	strong	very weak to weak	-	-	-
45-65	-	-	-	-	-	-	very strong	strong	strong	-	-	-
65-85	-	-	-	-	-	-	very strong	very strong	-	-	-	-
85-105	-	-	-	-	-	-	very strong	strong	weak to medium	-	-	-
105-125	-	-	-	-	-	-	very strong	strong	strong	-	weak to medium	-

Sand mineralogy

Depth (cm)	Heavy Frac. sand % w/w	K-Feldspar % w/w	Light Fra. sand % w/w	Opaque % w/w	Plagioclase % w/w	Quartz % w/w
0-12	-	-	-	57	-	100

Minerals

Depth (cm)	Anatase % w/w	Andalusite % w/w	Apatite % w/w	Augite % w/w	Biotite % w/w	Hornblende (basaltic) % w/w
0-12	9	10	-	-	-	2

Depth (cm)	Brookite % w/w	Chloritic % w/w	Disthene % w/w	Epidote % w/w	Garnet % w/w	Glaucophane % w/w
0-12	-	-	-	23	-	-

Depth (cm)	Grenate % w/w	Grossular % w/w	Muscovite % w/w	Rutile % w/w	Sillimanite % w/w	Spinel % w/w
0-12	3	-	-	8	-	-

Profile description

Ap 0-12 cm	(dark) brown (7.5YR 4/4, moist)sandy loam,weak medium subangular blocky,frequent medium gravel gravel fragments,clear smooth boundary to,
E 12-21 cm	(dark) brown (7.5YR 4/4, moist)sandy loam,weak medium subangular blocky,very friable,very frequent medium gravel gravel very frequent coarse gravel stones fragments,clear smooth boundary to,
2Bw1 21-65 cm	dark red (10R 3/6, moist)clay,strong fine angular blocky,hard,few medium gravel gravel fragments,gradual smooth boundary to,
2Bw2 65-85 cm	dark red (10R 3/6, moist)clay,moderate medium angular blocky,friable,common medium prominent mottles (10YR 4/8),very few fine gravel gravel fragments,gradual smooth boundary to,
2BC 85-105 cm	light grey (10YR 7/1, moist)dark red (10R 3/6, moist),clay,clay,weak fine angular blocky and weak medium angular blocky,friable,friable,many medium prominent sharp mottles (10YR 5/6),many coarse prominent mottles (10R 4/8) and many coarse prominent mottles (10R 4/6),gradual smooth boundary to,

Altitude	575m
Slope	0%

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Reference soil Spain 10: Acrisol

Reference soil ES010: Plinthic Acrisols

Classification