Australian Soil Classification: Humose Black DERMOSOL / VERTOSOL
General Landscape Description: Low hill (Dissected plain)
Site Description: Lower slope/Drainage line; gently undulating (10%)
Vegetation: Pasture
Geology: Quaternary sediments derived from Palaeogene sediments
Soil Profile Morphology:
Surface Soil
A11 | 0-20 cm | Black (2.5Y2.5/1); light clay; strong fine subangular blocky structure; rough ped fabric; weak consistence, moderately moist; pH 7.5; clear change to: | |
A3/B1 | 20-30 cm | Very dark grey (2.5Y3/1); light clay; moderate fine subangular blocky structure; rough ped fabric; weak consistence, moist; pH 7.5; clear change to: | |
Subsoil | |||
B21 | 30-60 cm | Very dark greyish brown (10YR3/2); many coarse distinct dark greyish brown (2.5Y4/2) and few light olive brown (2.5Y5/4) mottles; medium clay; moderate medium polyhedral parting to fine structure; smooth ped fabric; firm consistence, moist; pH 7.5; gradual change to: | |
B22 | 60-80 cm | Very dark grey (2.5Y3/1); light clay; weak medium polyhedral/ indeterminate structure; smooth ped fabric; firm consistence, wet; pH 7.5; gradual change to: | |
B23 | 80-100 cm | Greyish brown (2.5Y5/2); many coarse distinct light olive brown (2.5Y5/6) and dark grey (2.5Y4/2) mottles; medium heavy clay; weak medium polyhedral/ indeterminate structure; smooth ped fabric; firm consistence, moist; pH 7.5. |
Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Exchangeable Cations | Total Carbon % | Total Nitrogen % | Organic Matter % | Available Aluminium mg/kg | Available Potassium (Skene K) mg/kg | Phosphorous (Olsen P) mg/kg | Available Sulphur mg/kg | Phosphorous Buffering Index | |||
Ca | Mg | K | Na | ||||||||||||
meq/100g | |||||||||||||||
0-10 | 7.1 | 6.9 | 0.28 | 31 | 3.8 | 1.6 | 0.35 | 8.1 | 0.64 | 15 | <10 | 530 | 74 | 19 | 190 |
Depth (cm) | Bulk Density kg/L | Volumetric Water | Dispersion | Slaking | ||||||
At Saturation pF0 mL/100mL | Near Saturation pF1.0 mL/100mL | Field Capacity pF2.0 mL/100mL | Wilting Point pF4.2 mL/100mL | Dry | Remoulded | |||||
2 Hour | 20 Hour | 2 Hour | 20 Hour | |||||||
0-10 | 1.00 | 59.8 | 51.8 | 47.3 | 28.4 | Nil | Nil | Nil | Nil | Water Stable |