Site SW59
| Location: Simpson. | Australian Soil Classification: Sesquic, Semiaquic PODOSOL |
| Great Soil Group: podzol | General Landscape Description: Upper slope crest in a dissected plain. |
| Geology: Veneer of Tertiary Hanson Plain Sand overlying Gellibrand Marl. |  |
Soil Profile Morphology:
Surface Soil
| A1 | 0-15 cm | Black (2.5Y2.5/1); sandy loam; pH 5.6; smooth change to: |  Site SW59 photo. Note: Surface (A1) horizon has been stripped from this profile |
| A2 | 15-30 cm | Intermittent horizon; conspicuously bleached; clear and wavy change to: | |
| Subsoil | |||
| B21s | 15/30-60 cm | Mottled yellowish brown (10YR5/8 moist) and very dark greyish brown (10YR3/2 moist); sandy clay loam; weak very fine polyhedral structure; weak to firm consistence; weakly cemented, weak 'coffee rock'; pH 5.3; gradual and wavy change to: | |
| B22g | 60-90 cm | Light olive brown (2.5Y5/4 moist) with prominent yellowish brown (10YR7/8 moist) to yellow (10YR5/8 moist) mottles; sandy clay; very coarse (50-100 mm in size) polyhedral, parting to coarse (20-50 mm in size blocky structure; whitish sand coatings on the larger ped faces; pH 5.5; clear smooth change to: | |
| B3 | 90 cm+ | Light greenish grey (5GY7/1 moist); heavy clay; brownish yellow (10YR6/8 moist) mottles; very coarse (50-100 mm in size) polyhedral, parting to coarse (20-50 mm in size) blocky structure; slickensides (>50 mm in size) present; pH 6.3. | |
Key Profile Features:
- Strong texture contrast between surface (A) horizons and subsoil (B21) horizon.
| pH | Salinity Rating | ||
Surface (A1 horizon) | Moderately Acid | Low | Non-Sodic | None |
Subsoil (B21 horizon) | Strongly Acid | Low | Non-Sodic | None |
Deeper subsoil (at 90+ cm) | Slightly Acid | Low | - | None |
 |
Horizon | Horizon Depth (cm) | pH (water) | pH CaCl2 | EC 1:5 | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A1 | 0-30 | 5.6 | 5 | 0.16 | 5.8 | 0.87 | 0.26 | 0.33 |
| Sporadic A2 not sampled | ||||||||
B21 | 30-60 | 5.3 | 4.5 | 0.08 | 0.83 | 1 | 0.12 | 0.27 |
B22 | 60-90 | 5.5 | 4.6 | 0.08 | 1.2 | 2.8 | 0.14 | 0.41 |
B3 | 90+ | 6.3 | 5.2 | 0.14 | | | | |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Exchangeable Acidity meq/100g | Field Capacity pF2.5 | 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) |
A1 | 0-30 | <10 | 12 | 20 | 9 | 24 | 49 | 11 | 9 |
| |||||||||
B21 | 30-60 | 150 | 11 | 20 | 11 | 18 | 48 | 2 | 25 |
B22 | 60-90 | 61 | 5.7 | 22 | 12 | 18 | 44 | 4 | 33 |
B3 | 90+ | | | | | | | | |
Management Considerations:
Subsoil (B) Horizons
- Exchangeable aluminium levels are quite high in the strongly acid upper subsoil. This may restrict the growth of aluminium sensitive species.
- Contrast gleyed subsoil - sandy clay to heavy clay represents transition from overlying Hanson Plain Sand to underlying Gellibrand Marl.
© 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 .