Group: Tallangatta Valley Landcare Group | Australian Soil Classification: Acidic, Dystrophic, Red DERMOSOL |
Northcote Factual Key: Gn | Great Soil Group: red podzolic |
General Landscape Description: Midslope of a low hill (slope 12%) on Ordovician sediments. | |
Site Description: |
NE31 landscape |
O | 0-2 cm | Organic mat: | NE31 profile |
A1 | 2-12 cm | Dark brown (7.5YR3/4); fine sandy clay loam; firm consistence dry; contains many (25%) colluvial gravel (6 mm average diameter); pH 4.8; clear change to: | |
Subsoil | |||
B1 | 12-25 cm | Yellowish red (5YR5/8); clay loam (fine sandy); moderate medium blocky structure; pH 5.0; clear change to: | |
B21 | 25-40 cm | Red (2.5YR5/8); light clay (fine sandy); moderate medium blocky, breaking down to weak fine blocky structure; pH 4.9. | |
B/C | 40-70 cm | Dark red (2.5YR4/8); light fine sandy clay loam ; moderate medium blocky, breaking down to weak fine blocky structure; pH 5.5: | |
C | 70+ cm | Base rock. Depth to bedrock varies across the pit from 25 cm to 1 metre depth. |
Horizon | pH | Salinity Rating | ||
Surface (A1 horizon) | very strongly acid | very low | non-sodic | none |
Subsoil (B21 horizon) | strongly acid | very low | non-sodic | none |
Deeper subsoil (at 60 cm) | moderately acid | very low | non-sodic | none |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A1 | 2-12 | 4.8 | 4.1 | <0.05 | 2.3 | 0.3 | 0.2 | <0.1 |
B21 | 12-25 | 5.0 | 4.2 | <0.05 | 0.7 | 0.2 | 0.1 | <0.1 |
B22 | 25-40 | 4.9 | 4.2 | <0.05 | 1 | 0.3 | 0.3 | <0.1 |
B/C | 40-70 | 5.5 | 4.7 | <0.05 | 7.2 | 1.5 | 0.2 | <0.1 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Field Capacity pF 2.5 | Wilting Point pF 4.2 | Coarse Sand (0.2-2.0 mm) | Fine Sand (0.02-0.2 mm) | Silt (0.002-0.02 mm) | Clay (<0.002 mm) |
A1 | 2-12 | 210 | 30.6 | 11.6 | 14 | 30 | 23 | 26 |
B21 | 12-25 | 220 | 28.2 | 10.9 | 10 | 33 | 23 | 33 |
B22 | 25-40 | 260 | 23.7 | 14.5 | 10 | 25 | 18 | 48 |
B/C | 40-70 | 30 | 33.7 | 12.4 | 12 | 38 | 23 | 18 |