ORZC3
| Location: Birchip. | Australian Soil Classification: Vertic (& Epihypersodic), Pedal, Calcic, CALCAROSOL (clayey). |
| Geology: Woorinen Formation. | |
| General Landscape Description: Located on a westerly facing gentle slope gilgai hummock, within a gently undulating landscape. This site represents the mound component of the gilgai microrelief. | |
| Site Description: Pasture containing barrel medic. | |
 Site ORZC3 Landscape |
Soil Profile Morphology:
Surface Soil
| A1 | 0-5 cm | Dark yellowish brown (10YR4/4); light clay; weak consistence dry; pH 9.3: |  Site ORZC3 Profile |
| Subsoil | |||
| B21 | 5-20 cm | Yellowish red (5YR5/6); medium clay; strong coarse prismatic, parting to coarse blocky structure; firm consistence dry; contains a common (20%) amount of fine earth carbonates; some surface horizon material along ped faces; pH 9.5: | |
| B22 | 20-50 cm | Light yellowish grey (7.5YR7/4) with yellowish red (5YR5/6) mottles; medium clay; strong coarse prismatic, parting to coarse blocky structure; firm consistence dry; pH 9.8: | |
| B23 | 50-90 cm | Light yellowish grey (7.5YR7/4) with yellowish red (5YR5/8) and light grey (10YR7/2) mottles; medium clay; lenticular structure; very weak consistence moist; contains pockets of sandstone; pH 10.2: | |
| B24 | 90+ cm | Pale yellow (2.5Y7/4) with yellowish red (5YR5/8) mottles; medium heavy clay; strong lenticular structure with large slickensides; weak consistence moist; pH 9.8. | |
Key Profile Features:
- Gradual increase in clay content with depth.
- Vertic properties (i.e. slickensides and lenticular peds) in deeper subsoil.
- Soil profile calcareous throughout.
pH | Salinity Rating | |||
Surface (A1 horizon) | Strongly Alkaline | Low | Non-Sodic | None |
Subsoil (B21 horizon) | Very Strongly Alkaline | Low-Medium | Strongly Sodic | Strong |
Deeper subsoil (at 1 m) | Extremely Alkaline | Very High | Strongly Sodic | None1 |
 |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | NaCI % | Exchangeable Cations | Boron mg/kg | Field Capacity pF 2.5 | Wilting Point pF 4.2 | Coarse Sand (0.2 - 2 mm) | Fine Sand (0.02 -0.2 mm) | Silt (0.002 -0.02 mm) | Clay (<0.002 mm) | |||
Ca | Mg | K | Na | |||||||||||||
meq/100g | ||||||||||||||||
A1 | 0-5 | 8.6 | 8.1 | 0.23 | 0.04 | 29 | 7.7 | 2.0 | 1.0 | 2.9 | 42 | 17 | 16 | 24 | 16 | 33 |
B21 | 5-20 | 9.5 | 8.6 | 0.54 | 0.04 | 8.0 | 10 | 1.3 | 6.5 | 13 | 41 | 20 | 14 | 19 | 10 | 36 |
B22 | 20-40 | 9.8 | 9.1 | 0.91 | 0.10 | 3.4 | 12 | 1.5 | 11 | 25 | 42 | 22 | 16 | 21 | 14 | 37 |
B23 | 50-70 | 10.2 | 10.1 | 0.55 | 0.18 | 2.0 | 12 | 1.6 | 15 | 36 | 44 | 25 | 17 | 21 | 9 | 49 |
B24 | 90-110 | 9.8 | 9.5 | 0.57 | 0.30 | 2.2 | 12 | 1.6 | 17 | 25 | 47 | 31 | 14 | 21 | 8 | 54 |
Profile Described By: Mark Imhof, Paul Rampant and Steve Ryan (11/10/2000).
© 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 .