ALRA080

Drainage depression within a granitic landscape		Site Code	ALRA080
		Location	Port Curtis Road, Ararat
		Landform	Gently undulating rises
		Geology	Devonian granite
		Element	Drainage depression/rise slope
		Slope	3%
		Aspect	East-south-east
Horizon	Depth (cm)
A1	0–10	Very dark greyish brown (10YR3/2); clay loam, silty; weak fine to very fine subangular blocky structure; rough ped-fabric; weak consistence when moderately moist; pH 6.0; abrupt and smooth boundary to:		Vertic, Mottled-Subnatric, Grey SODOSOL
A2	10–20	Greyish brown (10YR5/2) with very few fine faint orange root lining mottles; sporadically bleached (10YR7/2 dry); silty loam (heavy); massive (structureless); weak consistence when moderately moist; few fine ferruginous organic root linings; pH 6.5; abrupt and smooth boundary to:
B21	20–35	Very dark greyish brown (2.5Y3/2) with few fine faint orange root lining and dark grey mottles; medium heavy clay; strong medium to fine prismatic structure; smooth ped-fabric; strong consistence when moderately moist; common distinct clay skins; pH 7.0; gradual and smooth boundary to:
B22	35–60	Greyish brown (2.5Y5/2) with many (25%) distinct medium yellowish brown (10R5/8) mottles; medium heavy clay; moderate coarse columnar, parting to moderate fine to medium polyhedral structure; smooth fabric; very firm consistence when moderately moist; very few fine ferruginous nodules; few faint slickensides; pH 8.0; gradual and smooth boundary to:
B23	60–90	Light olive brown (2.5Y5/4) with few fine faint orange mottles; medium heavy clay; massive (structureless); weak consistence when moist; very few to few medium ferruginous and calcareous nodules; pH 8.0; gradual smooth boundary to:
B24	90–130	Light olive brown (2.5Y5/4) with common coarse faint light olive brown (2.5Y5/6) mottles; medium heavy clay; moderate coarse lenticular structure; smooth ped-fabric; weak consistence when moist; few medium to coarse ferruginous nodules and soft calcareous segregations; pH 8.0; gradual and smooth boundary to:
B25	130-150+	Light brownish grey (2.5Y6/3) with common medium distinct yellowish brown (10YR5/6) mottles; medium clay; strong medium to coarse polyhedral structure; smooth fabric; firm consistence when moist; common faint slickensides; pH 8.0.
Management Considerations:
There is significant microrelief due to drainage, rabbit control and vertic subsoil. Vertic properties in the upper B horizon (subsoil too moist to indicate possible structure). Some slickensides observed down profile. Medium heavy clay subsoils with olive colouring and mottling indicates strong limitations to drainage. Slightly acidic surface soil trending neutral to alkaline with depth.

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