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 |
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. |
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 |