SFS9b

Location: Woodhouse

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

Northcote Factual Key: Duplex.

General Landscape Description: Level plain within the Victorian volcanic plains. Flat gently sloping side of broad depression.
Site Description: Mound or 'puff' component of gilgai microrelief.
Land Use: Raised beds with canola.

SFS9b Landscape

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:		SFS9b Profile
A2	8/10-30 cm	Conspicuously bleached (10YR8/2d) at base of horizon; loamy gravel; very abundant (~90%) fine buckshot; pH 6.5; abrupt change to:
Subsoil
B21tss	30-100 cm	Olive brown (2.5Y4/4) with faint abundant (~50%) yellowish brown (10YR5/6-6/6) mottles; heavy clay; fine polyhedral structure; few fine buckshot; slickensides at 80cm depth; pH 6.8.
B22	100+ cm	As above.

• Strong texture contrast between surface (A) horizons and subsoil (B21) horizon.
• Conspicuously bleached surface (A2) horizon.
• Abundant ‘buckshot’ gravel throughout subsurface (A2) 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	8/10-30	6.5	6	<0.05			2.7	1.4	0.13	0.26
B21tss	30-70	6.8	6.4	0.08			5.1	10	0.27	2.1
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	10-30		5.2	20.3	7.5	31	30	24	16
B21tss	30-70		12	45.1	27.9	3	13	9	70
B22	100+		11	45.4	29.8	3	10	8	76

Management Considerations:

Whole Profile

• Plant available water capacity (PAWC) is considered to be medium (estimated at 140 mm) in the upper 100 cm of this soil profile.

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