SW14
Location: Lake Corangamite
Australian Soil Classification: Endocalcareous, Self-Mulching, Black VERTOSOL
General Landscape Description: Lunette.
Site Description: Lower waning slope within an open depression.
Landuse: Pasture grazing – sheep and beef.
Geology: Quaternary aeolian deposits derived from lake bed sediments.
SW14 Landscape. View of terrace and Lake Corangamite.
Soil Profile Morphology:
Surface Soil
| A1 | 0-10 cm | Black (N2.5/0); silty clay; fine (1-5 mm in size) polyhedral structure; contains quarts; moderately calcareous; pH 8.3; clear change to: |  SW14 Profile |
| Subsoil |  | | |
| B21 | 10-50 cm | Very dark grey (2.5Y3/1) with black (N2.5/0) in fissures; medium heavy clay; fine (10-12 mm is size) prismatic structure; contains calcium carbonate; some shells present; contains many fine roots and a common amount of medium sized roots; moderately calcareous; pH 8.8; abrupt and smooth change to: | |
| 2A1 | 50-60 cm | Black (N2.5/0); medium clay; fine (2-10 mm sized) polyhedral structure; friable consistence; contains occasional carbonate; many fine sized roots present; pH 8.7; clear change to: | |
| 2B21bt | 60-90 cm | Black (N2.5/0); medium heavy clay; medium prismatic, parting to angular blocky structure; very slightly calcareous; pH 9.1; gradual change to: | |
| 2B22bk | 90-100 cm | Black (N2.5/0); medium heavy clay; medium prismatic parting to coarse polyhedral structure; contains a common (>20%) amount of soft, very coarse (20-50 mm in size) carbonate segregations; contains a common amount of fine roots; pH 9.4. | |
| |
SW14 Self-mulching surface condition.
Soil Profile Characteristics:
| pH | Salinity Rating | ||
Surface (A1 horizon) | Moderately Alkaline | Low to Medium | Non Sodic | None |
Subsoil (B21 horizon) | Strongly Alkaline | Low to Medium | Non Sodic | None |
Deeper Subsoil (at 90-100 cm) | Very Strongly Alkaline | Low to Medium | Sodic | None1 |
| The surface horizon is moderately alkaline. The subsoil is strongly alkaline, becoming very strongly alkaline with depth. | The salinity rating is low to medium throughout the profile. |
|
| |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC ds/m | NaCl % | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
meq/100g | |||||||||
A11 | 0-10 | 8.3 | 7.8 | 0.24 | | 37 | 28 | 2.7 | 0.84 |
B21kt | 10-50 | 8.8 | 8.2 | 0.27 | <0.05 | 18 | 41 | 1.3 | 0.79 |
2A1 | 50-60 | 8.7 | 8.1 | 0.22 | | 9.1 | 57 | 2.2 | 1.6 |
2B21bt | 60-90 | 9.1 | 8.5 | 0.44 | 0.06 | 2 | 47 | 2.5 | 3.8 |
2B22bk | 90-100 | 9.4 | 8.7 | 0.54 | <0.05 | 1.1 | 34 | 2.2 | 6.7 |
Horizon | Horizon Depth (cm) | 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) |
A11 | 0-10 | 42.4 | 0.2 | 20 | 28 | 23 |
B21kt | 10-50 | 33.4 | 0.1 | 25 | 20 | 22 |
2A1 | 50-60 | 40.9 | 0.1 | 40 | 27 | 16 |
2B21bt | 60-90 | 37.6 | 0.1 | 32 | 26 | 23 |
2B22bk | 90-100 | | | | | |
Profile Described By: Richard MacEwan, John Martin, Mark Imhof (March 1997).
© State of Victoria (Agriculture Victoria) 1996 - .
This work, Victorian Resources Online, is licensed under a Creative Commons Attribution 4.0 licence. You are free to re-use the work under that licence, on the condition that you credit the State of Victoria (Agriculture Victoria) as author, indicate if changes were made and comply with the other licence terms.
The licence does not apply to ‘branding’ or some ‘images or photographs’ that may be owned by third parties. We ask you to seek prior approval to use images using the VRO feedback form. Access to higher quality images can also be provided on request.
This page was last updated on .