WLRA126

Cropped undulating plains		Site Code	WLRA126	Epicalcareous-Endohypersodic, Self-mulching, Grey VETROSOL
		Location	Borung Highway, Areegra, western Victoria
		Landform	Plain
		Geology	Quaternary Woorinen Formation: aeolian dune sand, calcareous clay
		Element	Flat
		Slope	0%
		Aspect	–
		Aspect	–


Horizon	Depth (cm)	Description
Ap	0–12	Very dark grey (2.5Y3/1); fine sandy clay loam; weak fine subangular blocky structure; rough ped fabric; very weak consistence when dry; abundant fine roots; highly calcareous; pH 9.0; smooth and clear boundary to:
B1	12–25	Dark grey (2.5Y4/1); light clay (heavy); strong fine to medium angular blocky, parting to fine to very fine subangular blocky and prismatic structure; rough ped fabric; firm consistence when dry, subplastic; many fine roots; very highly calcareous; pH 9.5; smooth and gradual boundary to:
B21	25–55	Greyish brown (2.5Y5/2) with common medium (2.5Y4/1) faint mottles; medium clay; strong coarse polyhedral, parting to very fine to fine angular blocky and prismatic structure; smooth ped fabric; very firm consistence when dry, subplastic; common slickenside (20-80 mm) cutans; very few manganiferous nodules (<2 mm) with calcareous nodules and flecks (2-6 mm); fine roots common; very highly calcareous; pH 9.5; smooth and gradual boundary to:
B22	55–80	Greyish brown (2.5Y5/3) with common medium (2.5Y4/1) faint mottles; medium heavy clay; moderate fine to very fine polyhedral structure; rough ped fabric; very firm consistence when dry, subplastic; common slickenside (50--100 mm) cutans; very highly calcareous; pH 9.5; smooth and gradual boundary to:
B23	80–110	Greyish brown (2.5Y5/3) with common (2.5Y5/1) faint mottles; medium clay (heavy); weak fine polyhedral structure; rough ped fabric; strong consistence when dry, subplastic; very few fine manganiferous nodules and medium calcareous nodules and flecks; very highly calcareous; pH 9.5; smooth and gradual boundary to:
B3	110–135+	Greyish brown (2.5Y5/3); light clay; massive (structureless); earthy ped fabric; firm consistence when moderately moist; very few fine manganiferous and calcareous flecks; highly calcareous; pH 9.5.
Management Considerations
Moderate susceptibility to wind erosion where vegetation coverage is inadequate Clay subsoils tend to be subplastic Very alkaline throughout profile therefore chemical limitation (eg. chemical toxicity for some elements) Subsoil constrained includes poor drainage (yellow mottling) Rooting depth to 55 cm (observed) abrupt end at this depth. Possibly due to waterlogging, chemical imbalance. Moderate susceptibility to soil structure decline in upper subsoil due to slaking and some dispersion

Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	Exchangeable Cations cmol-/kg				Coarse Sand %	Fine Sand %	Silt %	Clay %
Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	Ca	Mg	K	Na	Coarse Sand %	Fine Sand %	Silt %	Clay %
A1	0–12	8.3	7.9	0.22	34	4.2	2.8	0.16	20.3	19.6	19.5	32
B1	12–25	8.6	8.1	0.26	25	6.1	2.1	1	15.8	17.6	8.5	46
B21	25–55	9	8.3	0.27	21	12	1.7	3.9	13.8	18.4	6.5	55
B22	55–80	9.4	8.6	0.41	13	13	1.6	5.9	14.4	10.5	5.5	53.5
B23	80–110	9.6	9	0.6	11	16	1.9	8.3
B3	110–135+	9.6	9.1	0.95	9.5	15	2.2	11	12.1	10.9	6	59.5

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