Land Mapping Unit: Ararat Granites
Australian Soil Classification: Mesotrophic, Mottled-Mesonatric, Grey SODOSOL (confidence level 1).
Site GL168 Landscape. |
A1 | 0-10 cm | Dark brown (7.5YR3/3); loamy coarse sand; weak medium polyhedral structure; very weak consistence (dry); a few small angular pebbles (2-6 mm); pH 5.4; gradual change to: | Site GL168 Profile. |
A21 | 10-30cm | Brown (7.5YR4/4); loamy coarse sand; massive; weak consistence (dry); pH 5.2; gradual change to: | |
A22 | 30-40cm | Brown (7.5YR5/4); loamy coarse sand; conspicuously bleached (7.5YR7/4); when dry; massive; weak consistence (dry); pH 5.9; clear change to: | |
Subsoil | |||
B21 | 40-55 cm | Brown (10YR4/2); heavy clay; many prominent fine dark red (2.5YR3/6) mottles; strong coarse prismatic; parting to strong very fine angular blocky structure; clay skins common; pH 7.4; clear and wavy change to: | |
B22 | 55-80 cm | Weak red (10R5/3); heavy clay; prominent brownish yellow (10YR6/6) mottles common; strong coarse prismatic structure; very few fine manganiferous flecks; clay skins common; pH 7.9; sharp change of variable depth to: | |
C | 80-180+ cm | Weathered granite. |
pH | Salinity Rating | |||
Surface (A1 horizon) | Strongly Acid | Low | Non-Sodic | None |
Subsoil (40-55 cm) | Slightly Alkaline | Low | Strongly Sodic | None1 |
Deeper Subsoil (55-80 cm) | Slightly Alkaline | Low | Strongly Sodic | Strong to Complete |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Exchangeable Aluminium mg/kg | Exchangeable Acidity meq/100g | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||||
meq/100g | ||||||||||
A1 | 0-10 | 5.4 | 4.4 | 0.08 | 17 | 7 | 1.8 | 0.42 | 0.58 | 0.25 |
A21 | 10-30 | 5.2 | 4.5 | <0.05 | 25 | 3.9 | 0.77 | 0.31 | 0.18 | 0.08 |
A22 | 30-40 | 5.9 | 5.1 | 0.07 | <10 | 2.8 | 0.94 | 0.54 | 0.19 | 0.28 |
B21 | 40-55 | 7.4 | 6.2 | 0.16 | 5.2 | 7.2 | 0.94 | 3.8 | ||
B22 | 55-80 | 7.9 | 6.8 | 0.16 | 6.1 | 9.8 | 0.86 | 4 |
Horizon | Horizon Depth (cm) | Field Capacity pF2.5 | Wilting Point pF4.2 | 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 | 0-10 | 12 | 4 | 38 | 38 | 12 | 11 |
A21 | 10-30 | 11 | 4 | 42 | 35 | 12 | 10 |
A22 | 30-40 | 12 | 3 | 36 | 39 | 15 | 10 |
B21 | 40-55 | 39 | 23 | 11 | 18 | 7 | 63 |
B22 | 55-80 | 41 | 19 | 17 | 19 | 11 | 51 |