GRES661

Location: Bruthen

Australian Soil Classification: Melanic, Eutrophic, Brown DERMOSOL

Map Unit: Lindenow (Component 1)
Previous Site Name: AL24

General Landscape Description: Flood plain (hummocky).
Site Description: 1% slope.
Land Use: Grazing on annual pasture.
Native Vegetation: Dry valley forest, minor areas of floodplain reed-bed.
Geology: Recent alluvium.

Soil Profile Morphology:

A11	0 – 7 cm	Very dark greyish brown (10YR3/2); silty loam; moderate crumb structure; friable consistence moist; clear and wavy change to:
A12	7 – 17 cm	Very dark greyish brown (10YR3/2) abundant distinct brown mottles; silty loam; moderate fine (<5 mm) subangular blocky structure; friable consistence moist; diffuse and wavy change to:
AC	17 – 27 cm	Very dark greyish brown (10YR3/2), abundant distinct brown (<5 mm) mottles; silty loam (with thin fine sand lenses); moderate fine (<5 mm) subangular blocky structure; friable consistence moist; abrupt and smooth change to:
2A1	27 – 52 cm	Very dark greyish brown (10YR3/2), abundant distinct brown (5 -15 mm) mottles; silty clay loam (with thin fine sand lenses); moderate coarse angular blocky structure; firm consistence moist; abrupt change to:
2C	52 – 90+ cm	Yellowish brown (10YR5/6), abundant distinct grey (5 -15 mm) mottles; silty loam; massive structure.

Key Profile Features:

Little change in clay content down the profile.

Chemical and Physical Analysis:

Horizon	Horizon Depth (cm)	pH (water)	EC dS/m	Organic Carbon %	Total Nitrogen %	Exch. Acididty meq/100g	Exchangeable Cations				Gravel %	Coarse Sand (0.2-2.0 mm) %	Fine Sand (0.02-0.2 mm) %	Silt (0.002-0.02 mm) %	Clay (<0.002 mm) %
							Ca	Mg	K	Na
							meq/100g
A11	0-7	6.2	0.21	4.0	0.43	11.3	8.7	6.0	0.4	0.5	0	2	43	18	17
A12	10-17	6.3	0.14	2.3	0.20	8.0	8.0	4.3	0.1	0.5	0	1	54	18	15
2A1	30-52	6.1	0.31	1.4	0.15	10.1	8.2	5.1	0.09	1.0	0	<1	37	34	19
2C	52-60	6.3	0.23	1.5	0.11	9.3	7.0	4.1	0.04	0.8	0	<1	55	26	15

Profile Described By: J.M. Aldrick, 1978.

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