Victorian Resources Online (archived)
CSLP3
Location: Jancourt
Australian Soil Classification: Bleached-Sodic, Eutrophic, Brown CHROMOSOL
General Landscape Description: Valley Floor.
Geology: Quaternary basaltic tongue Colluvium
CSLP3 Landscape (foreground only).
Soil Profile Morphology:
Surface Soil
| A11 | 0-12 cm | Dark brown (7.5YR3/2); silty loam; strong fine sub-angular blocky parting to strong very fine sub-angular blocky structure; weak consistence dry; sub-angular shaped basalt fragments common; a moderate amount of roots present; pH 5.7; gradual change to: |  CSLP3 profile. |
| A12 | 12-25 cm | Dark brown (7.5YR3/2); silty loam; moderate fine sub-angular blocky parting to moderate fine sub-angular blocky structure; weak consistence dry; sub-angular shaped basalt fragments common; a moderate amount of roots present; pH 5.5; changing to: | |
| A2 | 25-50 cm | Brown (7.5YR4/2) conspicuously bleached (7.5YR7/2d); heavy silty loam; moderate fine sub-angular blocky, parting to weak very fine sub-angular blocky structure; firm consistence dry; many sub-angular shaped basalt fragments; ferromanganiferous crystals common; a moderate amount of roots present; pH 5.8; clear and wavy change to: | |
| Subsoil | |||
| B21 | 50-90 cm | Brown (10YR5/3), with many distinct yellowish brown (10YR5/6) and yellowish red (2.5YR5/8) mottles; heavy clay; weak very coarse polyhedral and lenticular, parting to moderate fine polyhedral and lenticular structure; firm consistence moderately moist; very few sub-angular shaped basalt fragments; a few roots present; pH 6.7; clear and wavy change to: | |
| B22 | 90-130 cm | Pale brown (10YR6/3), with many distinct yellowish brown (10YR5/8) and light brownish grey (10YR6/2) mottles; heavy clay; weak lenticular structure; firm consistence moderately moist; contains very few medium, sub-angular shaped basalt fragments; very few roots present; pH 6.7; gradual change to: | |
| B23 | 130-160+ cm | Strong brown (7.5YR5/6), with many prominent pinkish grey (10YR6/2) mottles and gley; medium clay; weak lenticular structure; firm consistence moderately moist; contains very few medium, sub-angular shaped basalt fragments; pH 6.8. | |
Soil Profile Characteristics:
pH | Salinity Rating | |||
Surface (A1 horizon) | Moderately Acid | Low | Non-Sodic | None |
Subsoil (B21 horizon) | Slightly Acid | Very Low | Sodic | None |
Deeper Subsoil (at 90-130 cm) | Slightly Acid | Very Low | Sodic | Slight1 |
| The surface horizon is moderately acid. The subsoil is slightly acid. | The salinity rating is low throughout the profile. | The surface is non-sodic. The subsoil is sodic. | The clay content is low in the surface and high in the subsoil. |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC (dS/m) | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A11 | 0-12 | 5.7 | 5.3 | 0.12 | 7.8 | 1.5 | 0.19 | 0.25 |
A12 | 12-25 | 5.5 | 4.8 | 0.05 | 3 | 1.3 | 0.1 | 0.23 |
A2 | 25-50 | 5.8 | 5 | <0.05 | 2.7 | 1.7 | 0.16 | 0.24 |
B21 | 50-90 | 6.7 | 6.1 | 0.14 | 5.8 | 13 | 0.37 | 1.6 |
B22 | 90-130 | 6.7 | 5.8 | 0.12 | 5.9 | 17 | 0.54 | 2.8 |
B23 | 130-160 | 6.8 | 5.9 | 0.13 | 5.5 | 16 | 0.43 | 2.9 |
Horizon | Horizon Depth (cm) | Exchangeable Acidity meq/100g | Total Nitrogen % | Organic Carbon g/100g | Field Capacity pF2.5 | Wilting Point pF4.2 | Exchangeable Aluminium mg/kg | 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 | 0-12 | 15 | 0.4 | 5.3 | 38.8 | 14.8 | <10 | 10 | 38 | 23 | 19 |
A12 | 12-25 | 9.6 | 0.13 | 1.9 | 29.3 | 8.3 | 15 | -- | -- | -- | -- |
A2 | 25-50 | 7.2 | 1.3 | 26.5 | 7.9 | <10 | 21 | 41 | 21 | 13 | |
B21 | 50-90 | 8.3 | 0.39 | 45.4 | 26.9 | 10 | 24 | 12 | 54 | ||
B22 | 90-130 | 6.6 | 49.9 | 25.7 | 2 | 26 | 8 | 60 | |||
B23 | 130-160 | 6.5 | 46.3 | 24.3 | 5 | 27 | 14 | 52 |
Profile Described By: David Rees, Michelle Davey, Nathan Robinson (November 2008).
