Location: Dimboola East
Australian Soil Classification: Sodic, Calcic, Black CHROMOSOL
General Landscape Description: Hill crest of a rise.
Site Description: Fallow, cropping.
Native Vegetation: Savannah Woodland.
Geology: Neogene (Tertiary).
Soil Profile Morphology:
Surface Soil
A1 | 0-15 cm | Dark brown (5YR4/2); fine sandy clay loam; weak medium blocky; pH 8.2; sharp change to: | |
Subsoil | |||
B21 | 15-50 cm | Very dark brown (10YR2/2); heavy clay; weak coarse blocky structure; pH 8.0; gradual change to: | |
B22 | 50-85 cm | Very dark brown (10YR2/2); heavy clay; weak coarse blocky structure; pH 8.2; gradual change to: | |
B3 | 85-120 cm | Very dark greyish brown (10YR3/2); sandy clay; weak blocky structure; contains very few fine carbonate nodules; highly calcareous; pH 9.1. |
pH | Salinity Rating | ||
Surface (A1 horizon) | Moderately Alkaline | Medium | Non-Sodic |
Subsoil (B21 horizon) | Moderately Alkaline | Low | Non-Sodic |
Deeper Subsoil (at 85-120 cm) | Very Strongly Alkaline | Medium | Strongly Sodic |
The surface and upper subsoil are moderately alkaline. The deeper subsoil is very strongly alkaline. | The salinity rating in the surface is medium, low in the upper subsoil and medium in the deeper subsoil. | The surface and upper subsoil are non-sodic. The deeper subsoil is strongly sodic. |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | NaCl % | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
Meq/100g | |||||||||
A1 | 0-15 | 8.2 | 7.8 | 0.2 | 0.014 | 22 | 3.4 | 2.5 | 0.43 |
B21 | 15-50 | 8.0 | 7.6 | 0.37 | 0.02 | 19 | 4.4 | 1.4 | 1.3 |
B22 | 50-85 | 8.2 | 7.7 | 0.39 | 0.024 | 20 | 6.3 | 1.4 | 2.6 |
B3 | 85-120 | 9.1 | 8.4 | 0.46 | 0.054 | 15 | 6.4 | 1 | 4.6 |