Victorian Resources Online (archived)
GL116
| Site: GL116 | Land Unit: Wannon Alluvial |
| Aust. Soil Class.: Mottled-Sodic, Eutrophic, Black DERMOSOL (confidence level 1) | |
 | General Land Unit Description: This land unit occurs on the alluvial plains of the Wannon River and its tributaries in the south-west of the study area. The major soil type used to represent this unit is a Black Dermosol, although Sodic Black Vertosols are co-dominant. |
Site Description:
| Slope: 1% | Geology: Quaternaly alluvial |
| Landform pattern: Level plain | Position in landscape: Plain |
| Internal drainage: Imperfectly to poorly drained |
| A1 | 0-15 cm | Very dark brown (10YR2/2) sandy loam, a few faint yellow and orange oxidised root mottles, weak subangular blocky structure (10-15 mm), very firm consistence when dry, pH 5.2. Transition to: |
| Subsoil | ||
| B11 | 15-40 cm | Very dark brown (10YR2/2) clay loam, many faint orange and yellow oxidised root mottles, weak to massive structure, strong consistence when dry, pH 5.8. Transition to: |
| B12 | 40-100 cm | Very dark brown (10YR2/2) clay loam, many very faint orange and yellow mottles, weak subangular blocky structure (10-15 mm), strong consistence when dry, pH 6.9. Transition to: |
| B21 | 100-130 cm | Dark greyish brown (2.5Y4/2), light clay, many very faint yellow mottles, weak structure, strong consistence when dry, pH 8.2. Transition to: |
| B22 | 130-150 cm | Olive brown (2.5YR4/3) light clay, many faint yellow mottles, moderate subangular blocky structure (5-10 mm), strong consistence when dry, pH 8.4. Transition to: |
| B23 | 150-200+ cm | Dark greyish brown (2.5Y4/2) light medium clay, many distinct orange mottles, moderate subangular blocky structure (5-10 mm), strong consistence when dry, pH 8.1. |
Key profile features:
- Acidic topsoil
- Strongly sodic at depth
- Mottled subsoil
- Subsoil dispersive when dry
