Location: Ambyne
Australian Soil Classification: Haplic, Eutrophic, Red CHROMOSOL
Map Unit: Ambyne (Component 1)
Previous Site Name: EG224
General Landscape Description: Rolling hills
Site Description: Simple upper slope 15% south east
Land Use: Grazing
Native Vegetation: Grassy woodland
Geology: Granite
Photo taken about 1.5km north-west of Ambyne Crossing looking south-east along the Deddick River valley
Soil Profile Morphology:
Surface soil | |||
A11 | 0 – 18 cm | Dark reddish brown (5YR3/3); coarse sandy loam; weak fine granular structure; weak consistence dry; pH 7.2; clear change to: | |
A12 | 18 – 40 cm | Yellowish red (5YR4/6); coarse sandy loam; weak medium polyhedral structure; firm consistence dry; pH 7.3; abrupt change to: | |
Subsoil | |||
B2 | 40 – 70 cm | Dark red (2.5YR3/6); coarse sandy clay loam; moderate coarse polyhedral structure; strong consistence dry; passing to very weak rock; pH 6.3; diffuse change to: | |
C | 70+ | Weak granitic rock becoming more frequent with depth. |
- | pH | Salinity | ||
Surface soil (A1 horizon) | Slightly Alkaline | Very Low | Non-sodic | None |
Subsoil (B1 horizon) | Slightly Alkaline | Very Low | Non-sodic | None1 |
Deeper subsoil (80-110 cm) | Slightly Acid | Very Low | Non-sodic | None |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Organic Carbon % | Total Nitrogen % | Exchangeable Aluminium ppm | Exchangeable Acididty meq/100g | Exchangeable Cations | Coarse Sand (0.2-2.0 mm) % | Fine Sand (0.02-0.2 mm) % | Silt (0.002-0.02 mm) % | Clay (<0.002 mm) % | Field Capacity % w/w | Wilting Point % w/w | |||
Ca | Mg | K | Na | |||||||||||||||
meq/100g | ||||||||||||||||||
A1 | 0-18 | 7.2 | 6.3 | <0.05 | 1.1 | <0.05 | <10 | 4.6 | 1.3 | 0.37 | <0.05 | 50 | 25 | 9 | 14 | 18.3 | 4.9 | |
A2 | 18-40 | 7.3 | 6.2 | <0.05 | 0.37 | <0.05 | <10 | 2 | 2 | 0.36 | 0.064 | 47 | 26 | 11 | 15 | 16.6 | 4.6 | |
B2 | 40-70 | 6.3 | 5.0 | <0.05 | 0.35 | <0.05 | 20 | 5.4 | 4.2 | 4.7 | 0.37 | 0.11 | 40 | 20 | 14 | 22 | 22.2 | 9.0 |