WLRA142

Undulating footslopes. Erosion control work showing on gully wall		Site Code	WLRA142	Eutrophic, Mottled-Hypernatric, Brown SODOSOL
		Location	Shays Flat-Malakoff Road, Landsborough, western Victoria
		Landform	Rolling low hills
		Geology	Palaeozoic (Cambrian) Warrak Formation: marine sandstone, siltstone, schist
		Element	Footslope
		Slope	6.5%
		Aspect	South


Horizon	Depth (cm)	Description
A1	0–10	Brown (7.5YR4/3); sandy loam, silty; massive (structureless); weak dry consistence; very few small subrounded gravels; pH 5.1; clear and smooth boundary to:
A2	10–30	Strong brown (7.5YR4/6), conspicuously bleached very pale brown (10YR8/3 dry); silty loam, fine sandy; massive (structureless); weak dry consistence; pH 5.2; clear and smooth boundary to:
A3	30–45	Pale yellow (2.5Y7/3), conspicuously bleached white (10YR8/1 dry), with common fine distinct orange and yellow mottles; silty loam, fine sandy; massive (structureless); strong dry consistence; very few fine earthy root linings; uncemented continuous massive densipan; pH 7.0; abrupt and smooth boundary to:
B21	45–80	Strong brown (7.5YR5/6) with common fine to medium faint orange and yellow mottles; light clay; weak medium prismatic, parting to weak medium angular blocky structure; rough to smooth ped-fabric; strong dry consistence; very few small angular quartz gravels; pH 7.5; gradual and smooth boundary to:
B22	80–135+	Dark yellowish brown (10YR4/4) with many fine yellow (10YR7/6) mottles; light medium clay; massive (structureless); strong dry consistence; very few small angular quartz gravels; very few fine to medium manganiferous nodules; pH 8.4.
Management Considerations
Strong texture contrast profile, highly sodic subsoil. Deep subsurface horizon, leached (bleached) with restrictive interface with subsoil. Acidic surface soil , neutral deep subsurface and upper subsoil 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	NaCl %	Exchangeable Cations cmol-/kg				Field Capacity (pF2.5)	Wilting Point (pF4.2)	Coarse Sand %	Fine Sand %	Silt %	Clay %
Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	NaCl %	Ca	Mg	K	Na	Field Capacity (pF2.5)	Wilting Point (pF4.2)	Coarse Sand %	Fine Sand %	Silt %	Clay %
A1	0–10	5.1	4.5	0.05		1.3	0.33	0.25	0.08	32.4	5.4	4.7	67.7	18	6.5
A2	10–30	5.2	4.7	<0.05
A3	30–45	7.0	5.9	0.08		1.3	2.1	0.09	1	19.9	7.6	5.4	61.3	11.5	19.5
B21	45–80	7.5	6.4	0.2		2.7	6.7	0.31	3.7	31.9	18.7	4.1	35.5	11	47
B22	80–135+	8.4	7.4	0.29	0.05	1.9	7.7	0.4	5.4	31.7	18.6	2.7	43.4	10.5	38.5

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