Location: Vectis South
Soil Type: Norton Sandy Clay
Australian Soil Classification: Vertic, Calcic, Grey CHROMOSOL
Northcote Factual Key: Dy 2.33
Great Soil Group: solonetz
Mapping Unit: Norton Sandy Clay.
General Landscape Description: Level area on the swale component of the dune and swale landscape.
Site Description: The site was cleared and under pasture at time of soil survey. The site lies twelve kilometres south west of Horsham in the Quantong area.
Geology: Late Tertiary to Quaternary. Quaternary Shepparton Formation: fluvial silt, sand and minor gravel
Native Vegetation: Probable original vegetation was the Grey Box (Eucalyptus microcarpa), Buloke (C. luehmannii) and Yellow Gum (E. leucoxylon) tall woodland formation.
IS32 Landscape - Swale between dunes near Quantong. |
A1 | 0-10 cm | Very dark greyish brown (10YR3/2); sandy clay loam; plastic; hardsetting surface condition; weak subangular blocky structure; strong consistence dry, sticky consistence wet; pH 7.1; sharp change to: | IS32 Profile |
Subsoil | |||
B21 | 10-20 cm | Greyish brown (2.5Y5/2); medium clay; plastic; weak very coarse prismatic structure; strong consistence dry, sticky consistence wet; pH 7.6; diffuse change to: | |
B22 | 20-40 cm | Greyish brown (2.5Y5/2) sporadically bleached (10YR7/3); light clay; subplastic; weak very coarse prismatic structure; strong consistence dry, sticky consistence wet; pH 8.3; sharp change to: | |
B31 | 40-65 cm | Olive (5Y5/6) with pale brown (10YR6/3) mottles; heavy clay; plastic; contains large slickensides; strong consistence dry; contains very few (< 2 %) soft carbonates; pH 9.3: | |
B32 | 65-80 cm | Olive (5Y5/6) with pale brown (10YR6/3) mottles; heavy clay; plastic; contains large slickensides; strong consistence dry, sticky consistence wet; contains very few (< 2 %) soft carbonates; pH 9.4; gradual change to: | |
B33 | 80-100 cm | Strong brown (7.5YR5/6); heavy clay; moderate very coarse structure with slickensides; strong consistence dry; contains very few (< 2 %) hard carbonates and a common (10-20 %) amount of soft carbonate; pH 9.4: | |
B34 | 100-150 cm | Strong brown (7.5YR5/6); heavy clay; moderate very coarse structure with slickensides; strong consistence dry; pH 9.3; sharp change to: | |
B41 | 150-180 cm | Pale yellow (5Y7/3); medium clay (sandy); moderate very coarse structure with slickensides; strong consistence dry; contains a few (2-10 %) soft carbonates; pH 9.6: | |
B42 | 180-215 cm | Pale yellow (5Y7/3); medium clay (sandy); moderate very coarse structure with slickensides; strong consistence dry; contains very few (< 2 %) soft carbonates; pH 9.4: |
pH | Salinity Rating | |||
Surface (A1 horizon) | Slightly Alkaline | Low | Non-Sodic | None |
Subsoil (B21 horizon) | Slightly Alkaline | Very Low | Non-Sodic | None |
Deeper Subsoil (at 1 m) | Very Strongly Alkaline | High | Very Strongly Sodic | - |
The surface and upper subsoil is slightly alkaline. The deeper subsoil is very strongly alkaline. | The salinity rating is low in the surface. The upper subsoil is very low becoming high with depth. | The surface is non-sodic. The upper subsoil is non-sodic becoming very strongly sodic with depth. | The clay content increases markedly at the surface / subsoil boundary. |
Horizon | Sample Depth cm | pH | EC dS/m | Sodium Chloride % | Exchangeable Calcium cmol-/kg | Exchangeable Magnesium cmol-/kg | Exchangeable Potassium cmol-/kg | Exchangeable Sodium cmol-/kg | Exchangeable Aluminium mg/kg | Exchangeable Acidity cmol-/kg | Field Capacity -30okPa | Permanent Wilting Point -1500okPa | Coarse Sand % | Fine Sand % | Silt % | Clay % | |
H2O | CaCl2 | ||||||||||||||||
A1 | 0–10 | 7.1 | NA | 0.09 | 0.01 | 5.5 | 3.2 | 1 | 0.1 | NA | 4.2 | 13 | 9.3 | 39 | 32 | 6 | 21 |
B21 | 10–20 | 7.6 | NA | 0.11 | 0.01 | 10 | 7.8 | 1.4 | 0.4 | NA | 4.5 | NA | 17.2 | 28 | 24 | 5 | 43 |
B22 | 20–40 | 8.3 | NA | 0.17 | 0.01 | 10.4 | 8.8 | 1.3 | 0.9 | NA | 3 | NA | 18.2 | 26 | 25 | 4 | 42 |
B31 | 40–65 | 9.3 | NA | 0.34 | 0.04 | 7.7 | 10.9 | 1.3 | 3.4 | NA | 0.9 | NA | 18.6 | 25 | 27 | 3 | 42 |
B32 | 65–80 | 9.4 | NA | 0.57 | 0.08 | 6.8 | 13.7 | 1.3 | 5.8 | NA | NA | NA | 22.6 | 23 | 23 | 4 | 47 |
B33 | 80–100 | 9.4 | NA | 0.77 | 0.1 | 6.4 | 15.3 | 1.7 | 7.2 | NA | NA | NA | 23.7 | 19 | 18 | 3 | 51 |
B34 | 100–150 | 9.3 | NA | 0.9 | 0.14 | 5.4 | 15.5 | 1.5 | 7.6 | NA | NA | NA | 22.4 | 20 | 18 | 3 | 50 |
B41 | 150–180 | 9.6 | NA | 0.8 | 0.11 | NA | NA | NA | NA | NA | NA | NA | 16.3 | 29 | 25 | 3 | 35 |
B42 | 180–215 | 9.4 | NA | 0.86 | 0.13 | NA | NA | NA | NA | NA | NA | NA | 16.7 | 29 | 29 | 5 | 36 |