CSLP1

Location: Jancourt

Australian Soil Classification: Vertic (& Ferric), Eutrophic, Brown CHROMOSOL

General Landscape Description: Plain.
Site Description: Grazing paddock. Slight gilgai present.
Geology: Neogene Sediments – Hanson Plains Sand.

Image: CSLP1 Landscape

CSLP1 Landscape

Soil Profile Morphology:

Surface Soil

A1	0-8 cm	Very dark greyish brown (10YR3/2); loam; moderate coarse sub-angular blocky parting to moderate fine sub-angular structure; earthy fabric; firm consistence dry; contains a few medium (2-6 mm size) ferruginous concretions and nodules; pH 5.8; abrupt and wavy change to:	CSLP1 profile.
A21	8-25 cm	Dark yellowish brown (10YR4/4) conspicuously bleached (10YR6/3dry); silty loam; massive; earthy fabric; firm consistence dry; medium (2-6 mm size) ferruginous concretions and nodules common; pH 5.2; gradual change to:
A22	25-40 cm	Very pale brown (10YR7/3d); silty loam; weak medium sub-angular blocky parting to weak fine sub-angular blocky structure; earthy fabric; firm consistence dry; contains very many medium (2-6 mm in size) and coarse (6-20 mm in size) ferruginous and manganiferous concretions and nodules; pH 5.7; abrupt and wavy change to:
Subsoil



B21	40-65 cm	Dark yellowish brown (10YR4/6) with common distinct red (2.5YR5/6) mottles; light medium clay; moderate coarse prismatic, parting to strong fine angular blocky structure; smooth fabric; strong consistence moderately moist; contains a few coarse (6-20 mm sized) ferruginous and manganiferous nodules; pH 5.7; gradual change to:
B22	65-90 cm	Dark yellowish brown (10YR4/6) with many distinct medium red (2.5YR4/6) mottles; medium clay; strong structure; smooth fabric; strong consistence moderately moist; contains a few ferruginous nodules; pH 5.9; gradual change to:
B3	90-115 cm	Brown (10YR5/3) with many distinct red (2.5YR4/6) and strong brown (7.5YR4/6) mottles; medium clay; strong very coarse lenticular, parting to moderate fine prismatic structure; smooth fabric; very firm consistence moist; contains common, very coarse (20-60 mm size) ferruginous nodules; pH 6.3; gradual change to:
BC	115-135+ cm	Grey (10YR5/1) with many distinct dark red (10R3/6) mottles; light medium clay; moderate very coarse lenticular, parting to moderate fine prismatic and angular blocky structure; smooth fabric; very firm consistence moist; contain very many, very coarse (20-60 mm size) and extremely coarse (> 60 mm size) ferruginous nodules; pH 5.9.
NOTE: Some slickensides present in subsoil.

Soil Profile Characteristics:

	pH	Salinity Rating	Sodicity	Dispersion
Surface (A1 horizon)	Moderately Acid	Low	Non-Sodic	None
Subsoil (B21 horizon)	Moderately Acid	Very Low	Non-Sodic	None
Deeper Subsoil (at 90-115 cm)	Slightly Acid	Very Low	Non-Sodic	None

The surface and the upper subsoil are moderately acid. The deeper subsoil is slightly acid.

The salinity rating in the surface soil is low. The subsoil is very low.

The profile is non-sodic throughout.

The clay content increases markedly in the subsoil.

Horizon	Horizon Depth (cm)	pH (water)	pH (CaCl₂)	EC (dS/m)	Exchangeable Cations
					Ca	Mg	K	Na
					meq/100g
A1	0-8	5.8	5.1	0.24	4.7	2	2.2	0.97
A21	8-25	5.2	4.5	0.07	1.1	0.27	0.4	0.18
A22	25-40	5.7	5	0.05	1.3	0.59	0.21	0.17
B21	40-65	5.7	5.5	0.12	3.6	7	0.17	0.79
B22	65-90	5.9	5.6	0.12	3.2	8.9	0.17	0.91
B23	90-115	6.3	6.3	0.1	3.2	8.6	0.17	0.8
BC	115-135	5.9	5.7	0.11

Horizon	Horizon Depth (cm)	Exchangeable Acidity meq/100g	Total Nitrogen %	Organic Carbon g/100g	Field Capacity pF2.5	Wilting Point pF4.2	Exchangeable Aluminium mg/kg	Coarse Sand (0.2-2.0 mm)	Fine Sand (0.02-0.2 mm)	Silt (0.002-0.02 mm)	Clay (<0.002 mm)


A1	0-8	17	0.55	7.4	36.9	17.3	12	12	46	9	29
A21	8-25	10	0.11	2	26.1	5.7	64	12	56	13	16
A22	25-40	4.8		0.74	21.9	6.2	<10	28	44	13	14
B21	40-65	12		0.64	48.5	30.1	<10	3	12	5	76
B22	65-90	9.7		0.52	51.2	34	<10	1	7	5	86
B23	90-115	9.2		0.4	49.5	33	<10	4	10	4	80
BC	115-135				49.4	30.3		6	14	10	66

Profile Described By: David Rees, Michelle Davey, Nathan Robinson (November 2008).

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