SFS9a

Location: Woodhouse

Australian Soil Classification: Vertic (& Ferric), Mottled-Subnatric, Grey SODOSOL

Northcote Factual Key: Dy3.42

General Landscape Description: Level plain within the Victorian volcanic plains. Flat, gently sloping on the side of broad depression.
Site Description: Depression or 'hollow' component of gilgai micro-relief.
Land Use: Raised beds with canola.

SFS9a Landscape

Surface Soil			SFS9a Profile
A1	0-8/10 cm	Dark greyish brown (10YR4/2) with rusty root channel mottling; loam; apedal; weak consistence dry; pH 5; clear and wavy change to:
A2	8/10-60 cm	Brown (10YR5/3) with conspicuous bleach (10YR6/2d) and yellow mottles; clay loam, fine sandy; lower part of horizon (40-60 cm depth) has abundant (~90%) buckshot; pH 5.8; clear and abrupt change to:
Subsoil
B21tc	60-100 cm	Dark grey (10YR4/1) with common brownish yellow (10YR6/8) and dark red (2.5YR4/8) mottles; heavy clay; common (10-20%) buckshot; friable in a moist condition; fine polyhedral and lenticular structure; pH 7.0; gradual change to:
B22	100+ cm	Dark grey (10YR4/1) with many brownish yellow (10YR6/8) mottles and very few dark red (2.5YR4/8) mottles disappearing at depth; medium heavy clay; fine polyhedral and lenticular structure; pH 6.8.

• Strong texture contrast between surface (A) horizon and subsoil (B21) horizon.
• Conspicuously bleached subsurface (A2) horizon.
• Buckshot in A2 is only in lower 10cm of horizon.

Horizon	Horizon Depth (cm)	pH (water)	pH (CaCl2)	EC dS/m	Organic Carbon %	Nitrogen %	Exchangeable Cations
							Ca	Mg	K	Na
							meq/100g
A1	0-8/10	5	4.4	0.15	4.3	0.36	4.2	1.6	0.22	0.35
A2	15-30	5.8	4.9	0.06			3.2	1.4	0.08	0.25
B21k	65-85	7	7	0.13			4	9.1	0.25	2.2
B22	100+	6.8	6.5	0.21			4.5	11	0.27	3.3

Horizon	Horizon Depth (cm)	Exchangeable Aluminium mg/kg	Exchangeable Acidity meq/100g	Field Capacity pF2.5	Wilting Point pF4.2	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	0-8/10	37	14	34.6	12.1	5	39	28	20
A2	15-30	<10	6.7	30.1	7.6	3	43	32	19
B21k	65-85		12	40.7	26.7	9	12	8	67
B22	100+		11	45.4	29.8	3	10	8	76

• Plant available water capacity (PAWC) is considered to be medium (estimated at 107 mm) in the upper 100 cm of this soil profile.

• This site had more earthworms than has been seen at any other SFS site.