Australian Soil Classification: Haplic, Eutrophic, Red FERROSOL / DERMOSOL
General Landscape Description: Rise slope
Site Description: Site is on the upper mid-slope (5% slope).
Geology: Colluvial material.
ASSS1 Landscape
Soil Profile Morphology:
Surface Soil | ASSS1 Profile | ||
A11 | 0-10 cm | Dark reddish brown (5YR3/3); fine sandy clay loam; compaction evident; strong coarse polyhedral parting to fine polyhedral structure; very firm consistence dry; pH 6.4; clear change to: | |
A12 | 10-18 cm | Dark reddish brown (5YR3/3); fine sandy clay loam; strong coarse polyhedral parting to fine polyhedral structure; very firm consistence dry; calcareous; pH 6.3: | |
Subsoil | |||
B21 | 18-40 cm | Dusky red (2.5YR3/4); light medium clay; slightly sub-plastic; strong coarse sub-angular blocky parting to medium polyhedral structure; contains ferromanganiferous nodules; calcareous; pH 6: | |
B22 | 40-55 cm | Medium heavy clay; strong medium lenticular parting to fine lenticular structure; calcareous; greenstone floaters: | |
B23 | 55-75 cm | Heavy clay; coarse lenticular structure; boron toxicity; pH 7.4: | |
B24 | 75-120 cm | Heavy clay; coarse lenticular structure;slickensides ; contains a common amount of soft and semi-hard calcium nodules; pH 8.5. |
pH | Salinity Rating | |||
Surface (A1 horizon) | Slightly Acid | Low | Non-Sodic | - |
Subsoil (B21 horizon) | Moderately Acid | Very Low | Non-Sodic | None |
Deeper subsoil (at 75-120 cm) | Moderately Alkaline | Low | Non-Sodic | None |
The pH of the surface horizons is slightly acid. Moderately acid in the upper subsoil. Moderately alkaline in the deep subsoil. | The salinity rating is low to very low. | This profile is non-sodic. |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Available Boron mg/kg | Field Capacity pF2.5 | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||||
meq/100g | ||||||||||
A11 | 0-10 | 6.4 | 6.0 | 0.14 | 9.0 | 8.9 | 3.3 | 2 | 0.15 | |
A12 | 10-18 | 6.3 | 5.7 | 0.07 | 8.4 | 7.3 | 3.4 | 0.87 | 0.21 | |
B21 | 18-40 | 6.0 | 5.3 | <0.05 | 5.6 | 4.3 | 0.44 | 0.23 | ||
B22 | 40-55 | - | - | - | - | - | - | - | ||
B23 | 55-75 | 7.4 | 6.7 | 0.12 | 12 | 19 | 0.66 | 1.2 | ||
B24 | 75-120 | 8.5 | 8 | 0.26 | 4.5 | 12 | 19 | 0.68 | 1.5 |