WLRA128

Cropped undulating plains		Site Code	WLRA128	Hypercalcic, Epipedal, Grey SODOSOL
		Location	Borung Highway, Areegra, western Victoria
		Landform	Plain
		Geology	Quaternary Woorinen Formation: aeolian dune sand, calcareous clay
		Element	Flat
		Slope	0%
		Aspect	–


Horizon	Depth (cm)	Description
A1	0–10	Dark brown (10YR3/3); fine sandy clay loam; moderate fine to medium subangular blocky structure; rough ped fabric; very weak consistence when dry; many fine roots; moderately calcareous; pH 8.5; smooth and abrupt boundary to:
B21	10–35	Greyish brown (10YR5/2); medium clay; strong coarse to very coarse prismatic, parting to medium prismatic and angular blocky structure; smooth ped fabric; very strong consistence when dry; many fine roots; slightly calcareous; pH 9.0; irregular and gradual boundary to:
B22	35–45	Brown (7.5YR4/2); medium heavy clay; strong coarse to very coarse columnar, parting to medium prismatic and angular blocky structure; smooth ped fabric; very strong consistence when dry; many fine roots; very highly calcareous; pH 9.0; smooth and gradual boundary to:
B23k	45–80	Brown (7.5YR5/4) with common large dark brown (7.5YR4/2) distinct mottles; medium clay; moderate coarse columnar, parting to medium prismatic and angular blocky structure; smooth ped fabric; very firm consistence when moderately moist, subplastic; medium to coarse calcareous nodules and soft segregations common, tubules and very few fine manganiferous flecks; few very fine roots; very highly calcareous; pH 9.0; wavy and abrupt boundary to:
B24	80–130	Light brown (7.5YR6/4); medium clay; moderate medium prismatic structure; smooth ped fabric; common distinct other cutans; very firm consistence when moderately moist; very few very fine roots; highly calcareous; pH 9.0; smooth and gradual boundary to:
2B3	130–145+	Light yellowish brown (10YR6/4) with a few medium pink/light grey faint mottles; light clay; weak coarse polyhedral structure; rough ped-fabric; firm consistence when moderately moist; highly calcareous; pH 9.0.
Management Considerations
Moderate susceptibility to wind erosion where vegetation coverage is inadequate Well structured throughout profile Strongly alkaline throughout profile Imperfectly drained due to heavy soil textures (medium to heavy clay) and mottling of subsoils (brown and grey) Calcareous soft segregations and nodules in subsoil Moderate susceptibility to soil structure decline in subsoil due to soil dispersibility Subplastic subsoil (45-80 cm) Effective rooting depth to 80 cm (observed)

Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	NaCl %	Exchangeable Cations cmol-/kg
Horizon	Depth (cm)	pH (water)	pH (CaCl₂)	EC dS/m	NaCl %	Ca	Mg	K	Na
A1	0–10	8.4	8	0.19		30	5.8	2.2	0.45
B21	10–35	9	8.3	0.28		18	9.1	1.3	3.1
B22	35–45	9.7	8.9	0.45		9.6	14	1.2	6.5
2B21	45–80	9.9	9.3	0.66		4.9	14	1.6	8.9
2B22	80–130	9.8	9.4	0.96		4.4	14	1.8	11
2B3	130–145+	9.9	9.4	0.98		5.4	14	2	12

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