Victorian Resources Online (archived)
CRC4
Location: Warrayure
Australian Soil Classification: Bleached-Ferric, Sodosolic, Redoxic HYDROSOL
Site Description: Closed depression associated with Tertiary (Pleistocene) strand lines (Dorodong sands equivalent)
Soil Profile Morphology
:Surface Soil
| A1 | 0-10 cm | Brown (7.5YR4/4); loamy sand; weakly structured; firm consistence (dry); pH 5.4; clear change to: |  CRC4 profile | |
| A2 | 10-20 cm | Brown (10YR5/3); conspicuously bleached; sand; weakly structured; weak consistence (moderately moist); pH 5.8; abrupt change to: | ||
| Subsoil | ||||
| B1 | 20-30 cm | Pale brown (10YR6/3); sandy clay loam; weak-moderate blocky, parting to fine blocky structure; firm consistence (slightly moist); few (2-5%) ferruginous nodules (2-3 mm) (subangular pisoliths); rusty root channel mottling; pH 5.5; clear change to: | ||
| B21 | 30-45 cm | Brown (10YR5/3) with strong brown (7.5YR5/8) mottles common; light clay (fine sandy); moderate medium blocky, parting to moderate fine blocky structure; pH 6.1; clear change to: | ||
| B22c | 45-65 cm | Light grey (2.5Y7/2) with yellowish brown (10YR5/8) mottles; gravelly clay; very many (60%) ferruginous nodules (2-8 mm); pH 6.3; clear change to: | ||
| B23 | 65-85 cm | Brownish yellow (10YR6/8) with many light grey (2.5Y7/2) mottles; light medium clay (sandy); moderate coarse blocky; few (5%) ferruginous nodules (2-5 mm); pH 6.3; gradual change to: | ||
| B24 | 85-100 cm | Brownish yellow (10YR6/8) with light grey (2.5Y7/2) mottles common; light medium clay (sandy); moderate to strong very coarse prismatic structure; pH 5.8; gradual change to: | ||
| B25 | 100+ cm | Yellow (2.5Y7/8) with many light grey (2.5Y7/1) mottles; light medium clay (sandy); moderate-strong very coarse prismatic, parting to moderate-strong coarse to medium polyhedral structure; ferruginous sandstone fragments (5-50 mm) and ferruginous nodules common (15%); pH 5.8: | ||
| C | Ferruginous sandstone | |||
Soil Profile Characteristics:
pH | Salinity Rating | |||
Surface (A1 horizon) | Strongly Acid | Low | Sodic | None1 |
Subsoil (B21 horizon (30-45 cm) | Slightly Acid | High | Strongly Sodic | None2 |
Deeper subsoil (at 100+ cm) | Moderately Acid | Medium | Sodic | None |
2 Strong dispersion after remoulding
 |
Chemical and Physical Analysis:
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Exchangeable Aluminium ppm | Exchangeable Acididty meq/100g | Exchangeable Cations | Coarse Sand (0.2-2.0 mm) % | Fine Sand (0.02-0.2 mm) % | Silt (0.002-0.02 mm) % | Clay (<0.002 mm) % | Field Capacity % w/w | Wilting Point % w/w | |||
Ca | Mg | K | Na | |||||||||||||
meq/100g | ||||||||||||||||
A1 | 0-10 | 5.4 | 4.8 | 0.45 | <10 | 3.5 | 0.12 | 0.7 | 1.4 | <0.1 | 37.9 | 48.8 | 7.0 | 8.0 | 10.7 | 3.4 |
A2 | 10-20 | 5.8 | 5.2 | 0.35 | <10 | 1.6 | 0.09 | 0.4 | 1.0 | <0.1 | 35.2 | 51.4 | 7.0 | 5.0 | 11.7 | 2.2 |
B1 | 20-30 | 5.5 | 5.0 | 0.77 | <10 | 4.9 | 0.20 | 1.0 | 4.0 | <0.1 | 33.5 | 40.6 | 13.5 | 14.0 | 21.9 | 7.8 |
B21 | 30-45 | 6.1 | 5.5 | 0.58 | <10 | 5.9 | 0.14 | 1.9 | 8.4 | <0.1 | 26.4 | 34.5 | 8.0 | 29.0 | 31.0 | 14.1 |
B22c | 45-65 | 6.3 | 5.6 | 0.42 | <10 | 5.8 | 0.07 | 2.1 | 8.4 | <0.1 | 40.7 | 17.0 | 9.0 | 30.0 | 34.1 | 16.7 |
B23 | 65-85 | 6.3 | 5.7 | 0.29 | <10 | 4.9 | 0.09 | 1.7 | 6.8 | <0.1 | 24.4 | 32.0 | 13.0 | 30.5 | 30.4 | 14.3 |
B24 | 85-100 | 5.8 | 5.5 | 0.30 | <10 | 5.3 | 0.09 | 1.2 | 4.9 | <0.1 | 23.1 | 33.2 | 11.0 | 34.0 | 29.9 | 15.3 |
B25 | 100+ | 5.8 | 5.5 | 0.28 | <10 | 4.9 | 0.09 | 1.2 | 5.0 | <0.1 | 25.9 | 33.2 | 11.0 | 30.5 | 28.2 | 14.1 |
Management Considerations:
- The major part of the soil profile is likely to be saturated for a number of months in most years.
- The level of soluble salts is high in the upper part of the subsoil – but decreases with depth.
Profile Described By: Mark Imhof, Austin Brown, Darren Bennetts and Malcolm McCaskill - March 2003.
