Location: Inverloch | Australian Soil Classification: Parapanic, Humosesquic, Semiaquic PODOSOL; (f Grey KUROSOL) |
Northcote Factual Key: Dy 3.41 | Great Soil Group: podzol |
Geology: Tertiary sandstone (fluviatile). | General Landscape Description: Crest of a slight rise on a gently undulating plain. |
Soil Mapping Unit: Leongatha South. | Site Description: Grazing paddock near Inverloch. |
Native Vegetation: Includes Swamp Gum (Eucalyptus ovata) and Swamp Paperbark (M. ericifolia). |
Soil Site SG3 Landscape |
Soil Profile Morphology:
Surface Soil
0 | 0-4 cm | Organic matter mat. | Site SG3 Profile |
A1 | 4-20 cm | Dark grey (10YR4/1); fine sandy clay loam; weak coarse blocky structure; firm consistence dry; pH 5.1; abrupt change to: | |
A2 | 20-30 cm | Light brownish grey (10YR6/2); conspicuously bleached (10YR8/1d); very fine sandy clay loam; massive; strong consistence dry; pH 5.3; clear and wavy change to: | |
Subsoil | |||
Bhs | 30-45 cm | Yellowish brown (10YR5/4); fine sandy clay loam; very strong consistence dry; indurated with variably cemented brown (7.5YR4/6) "coffee rock" which forms a discontinuous layer; pH 5.8; clear change to: | |
2A2 | 45-55 cm | Light brownish grey (10YR6/2) conspicuously bleached (10YR8/1d); fine sandy loam; strong consistence dry; massive; pH 6.1; clear change to: | |
2B21 | 55-80 cm | Light brownish grey (10YR6/2) with strong brown (7.5YR5/8) mottles; light clay; strongly structured; firm consistence moist; pH 5.4; gradual change to: | |
2B22 | 80-100 cm | Light brownish grey (10YR6/2) with strong brown (7.5YR5/8) mottles; medium clay; strongly structured; pH 5.3; sharp change to: | |
C | 100+ cm | Weathered sandstone. |
The pH is strongly acid throughout most of the soil profile. | Soluble salt levels are very low throughout the soil profile. | Exchangeable aluminium levels are high in the B horizons (from 55 cm depth in the profile). | Clay increases significantly in the B horizon. |
Horizon Depth (cm) | pH (water) | pH CaCl2 | EC 1:5 | Exchangeable Cations meq/100g | Ex. Al mg/kg | Ex. Acidity meq/100g | 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) | ||||
Ca | Mg | K | Na | |||||||||||||
O | 0-4 | |||||||||||||||
A1 | 4-20 | 5.1 | 3.9 | <0.05 | 3.2 | 0.7 | 0.2 | 0.1 | 51 | 13.6 | 29.2 | 6.8 | 8 | 48 | 31 | 7 |
A2 | 20-30 | 5.3 | 4.2 | <0.05 | 0.7 | 0.1 | 0.1 | <0.1 | 40 | 3 | 17.9 | 2.8 | 8 | 50 | 33 | 9 |
Bhs | 30-45 | 5.8 | 4.8 | 0.06 | 1.6 | 0.5 | 0.2 | 0.2 | ||||||||
2A2 | 45-55 | 6.1 | 4.5 | <0.05 | 0.5 | 0.7 | 0.1 | 0.2 | 8 | 51 | 30 | 13 | ||||
2B21 | 55-80 | 5.4 | 4.1 | 0.14 | 1.4 | 6.9 | 0.2 | 2.2 | 240 | 9.2 | 7 | 36 | 22 | 34 | ||
2B22 | 80-100 | 5.3 | 4.1 | 0.17 | 1.6 | 11 | 0.2 | 4.2 | 190 | 11.4 |