GRES488

Location: Swan Reach

Australian Soil Classification: Melacic, Humosesquic, Aeric PODOSOL

Map Unit: Stockdale with Munro
Previous Site Name: AL8

General Landscape Description: Undulating rises.
Site Description: Simple mid slope, Northly aspect, 8% slope
Geology: Tertiary aeolian sediments.

Soil Profile Morphology:

Surface Soil

A11	0 – 20 cm	Black (10YR2/1); loamy sand; single grain; very weak dry; pH 5.9; clear smooth change to:
A12	20 – 45 cm	Very dark grey (10YR3/1); loamy sand; massive; very firm moist; pH 5.2; clear wavy change to:
A2	45- 87 cm	Pale brown (10YR6/3) conspicuously bleached (10YR7/2); clayey sand; very firm moist; pH 6.2; clear wavy change to:
Subsoil
Bhs	87 – 120 cm	Brownish yellow (10YR6/8) with prominent grey mottles; sandy clay loam; weak fine angular blocky structure; very firm moist; pH 5.8; clear smooth change to:
C	120 – 140 cm	Brownish yellow (10YR6/8); clayey sand; massive; firm moist; pH 5.4.

Key Profile Features

Deep sandy profile.
Leached iron and organic compounds have been precipitated on the sandy clay loam layer below the A horizons.

Chemical and Physical Analysis:

Horizon	Horizon Depth (cm)	pH (water)	EC dS/m	Organic Carbon %	Total Nitrogen %	Free Fe₂O₃ % w/w	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	0-10	5.9	0.05	1.8	0.092	0.2	7.4	2.3	1.3	0.2	0.1	4	51	24	7	15
A12	30-45	5.2	<0.05	0.73	0.029	0.1	5.7	0.2	0.4	0.06	0.1	4	63	24	6	4
A2	60-87	6.2	<0.05	0.13	0.006	0.1	0.83	<0.01	0.15	0.03	0.05	6	65	26	3	8
Bhs	90-115	5.8	0.17	0.11	0.015	1.3	5.5	0.1	3.2	0.09	1.2	14	52	19	7	21
C	120-140	5.4	0.18	0.06	0.011	1.9	3.1	0.09	2.0	0.06	1.0	16	55	23	8	12

Profile Described By: J.M. Aldrick et., al., 1992.

Page top