NA172


		Location	Mount Arapiles, western Victoria
		Landform	Hills
		Geology	Silurian-Devonian Grampians Group: quartz sandstone and red siltstone
		Element	Footslope




Horizon	Depth (cm)	Description
A1	0–5	Dark greyish brown (10YR3/2); loamy sand; single grain (structureless)weak dry consistence; pH 7.2; occasional bleach; sharp boundary to:
B21	5–20	Yellowish brown (10YR5/6); sandy clay loam; weak coarse prismatic structure; rough ped- fabric; very strong dry consistence; gradual boundary to:
B22	20–70+	Dark brown (10YR4/34) with many fine distinct (10YR4/4) mottles; sandy clay loam; very strong dry consistence; pH 8.9.
Management Considerations
Strong texture contrast profile, strongly sodic subsoil. Occasional subsurface horizon, leached (bleached) with restrictive interface with subsoil. Neural surface soil and alkaline deeper subsoil. Deeper subsurface and subsoil are very highly dispersive. Limited (preferably no) exposure necessary to remain stable. Surface soil is only slightly dispersive. Landscape position as footslope; exposure will accelerate rill/gully erosion in susceptible areas( depressions/drainage lines).

Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	Exchangeable Cations cmol-/kg				Field Capacity (pF2.5)	Wilting Point (pF4.2)
Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	Ca	Mg	K	Na	Field Capacity (pF2.5)	Wilting Point (pF4.2)
A1	0–5	7.2	6.8	0.12	8.2	3.3	0.8	0.3	21.7	11.6
B21	5–20
B22	20–70+	8.9	7.5	0.12	5.8	5.9	0.7	2.5	31.7	18.6

Page top