Location: Fernbank
Australian Soil Classification: Eutrophic, Mottled-Subnatric, Brown SODOSOL
Great Soil Group: brown soloth
Map Unit: Fernbank
Previous Site Names: EGG6, EG6
General Landscape Description: Undulating Rises
Site description: North Slope of low rise (4%)
Land Use: Plains grassy woodland
Native Vegetation: Red Gum (E. tereticornis)
Geology: Neogene alluvial sediments
EGS256 Landscape
A1 | 0-15 cm | Very dark greyish brown (2.5YR3/2); loamy sand; moderate fine to medium sub-angular blocky structure; very weak consistence moderately moist; pH 5.7; clear and smooth change to: | EGS256 Profile |
A2 | 15-27 cm | Pale brown (10YR6/3), light grey (10YR7/2) dry; sand; massive, loose to very weak consistence moist; very few fine quartz gravel; pH 6.0; abrupt and wavy change to: | |
Subsoil | |||
B21 | 27-90 cm | Yellowish brown (10YR5/4) with many coarse distinct strong brown (5YR5/8) mottles; heavy clay; weak very coarse columnar structure parting to moderate medium; to coarse prismatic structure; firm consistence moist; pH 6.6; diffuse change to: | |
B22 | 90-120 cm | Yellowish brown (10YR5/4) with common medium distinct grey and red mottles; heavy clay; weak medium prismatic structure; very firm consistence moderately moist; pH 7.2. |
pH | Sodicity | ||
Surface (A1 horizon) | Moderately Acidic | Non Sodic | None |
Subsoil (B21 horizon) | Slightly Acidic | Sodic | Strong |
Deep Subsoil 90 – 120 cm | Moderately Alkaline | Strongly Sodic | Moderate |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Organic Carbon % | Total Nitrogen % | 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 | 0-15 | 5.7 | 4.5 | 0.19 | 3.6 | 0.36 | 12 | 4.6 | 1.3 | 0.81 | 0.44 | 37 | 39 | 7 | 10 | 20.4 | 6.9 |
A2 | 15-27 | 6.0 | 4.5 | <0.05 | 4.3 | 0.85 | 0.36 | 0.24 | 0.11 | 39 | 43 | 7 | 11 | 11.3 | 1.8 | ||
B21 | 27-90 | 6.6 | 6.4 | 0.19 | 4.9 | 1.7 | 8.2 | 0.62 | 1.8 | 20 | 27 | 9 | 42 | 26.9 | 15.3 | ||
B22 | 90-120 | 8.0 | 7.2 | 0.35 | 0.5 | 8.7 | 0.3 | 2.8 | 18 | 26 | 11 | 43 | 23.4 | 13.0 |