Site IS27
Location: Haven
Australian Soil Classification: Calcic, Mottled-Mesonatric, Grey SODOSOL
General Landscape Description: Dune within a Dunefield
Geology: Quaternary Lowan Formation: aeolian fine to medium grained dune sand
Soil Profile Morphology:
Surface Soil
| A1 | 0-25 cm | Dark greyish brown (10YR4/2); sand; loose surface condition; single grain structure; pH 7.9; sharp and wavy boundary to: |  | |
| A21e | 25-45 cm | Brown (10YR5/3) conspicuously bleached very pale brown (10YR7/3d); sand; single grain (structureless); loose consistence; pH 7.4; diffuse boundary to: | | |
| A22e | 45-110 cm | Light yellowish brown (10YR6/4) conspicuously bleached very pale brown (10YR7/4d); sand; single grain (structureless); loose consistence; pH 7.2; diffuse boundary to: | | |
| A23e | 110-125 | Pale brown (10YR6/3); conspicuously bleached very pale brown (10YR7/3d); sand; single grain (structureless); loose consistence; pH 6.8; diffuse boundary to: | | |
| A3e | 125-145 | Pale brown (10YR6/3); conspicuously bleached very pale brown (10YR8/3d); loamy sand; pH 6.7; diffuse boundary to: | | |
| Subsoil | | |||
| B1 | 145-160 | Olive grey( 5Y5/2) with (7.5YR5/8) mottles; sandy clay; weak subangular blocky structure; pH 5.8; gradual boundary to: | | |
| B21 | 160-190 | Light olive (5Y6/2) with (7.5YR5/8) mottles; medium clay; pH 7.1; gradual boundary to: | | |
| B22k | 190-215 | Light olive (5Y6/2) with (7.5YR5/8) mottles; medium clay; few (2-10%) carbonate segregations; pH 7.1. | | |
Soil Profile Characteristics:
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 | 0–25 | 7.9 | NA | 0.02 | 0 | 0.5 | 0.1 | 0.1 | 0 | NA | 0.3 | NA | 1.6 | 64 | 34 | 0 | 2 |
A21e | 25–45 | 7.4 | NA | 0.01 | 0.01 | 0.3 | 0 | 0.2 | 0 | NA | NA | NA | 1.0 | 69 | 30 | 0 | 1 |
A22e | 45–110 | 7.2 | NA | 0.01 | 0 | 0.3 | 0 | 0 | 0 | NA | NA | NA | 0.8 | 83 | 15 | 0 | 2 |
A23e | 110–125 | 6.8 | NA | 0.01 | 0.01 | NA | NA | NA | NA | NA | NA | NA | 1.1 | 58 | 41 | 0 | 2 |
A3e | 125–145 | 6.7 | NA | 0.01 | 0 | 0.2 | 0 | 0 | 0 | NA | NA | NA | 1.3 | 45 | 53 | 0 | 1 |
B1 | 145–160 | 5.8 | NA | 0.3 | 0.06 | NA | NA | NA | NA | NA | 5.5 | NA | 14.5 | 24 | 37 | 3 | 32 |
B21 | 160–190 | 7.1 | NA | 0.47 | 0.09 | 5.7 | 16.3 | 1.3 | 5.6 | NA | NA | NA | 25.2 | 19 | 22 | 2 | 55 |
B22k | 190–215 | 9.1 | NA | 0.59 | 0.08 | 6.9 | 14.5 | 1.4 | 5.4 | NA | NA | NA | 21.6 | 18 | 21 | 3 | 47 |
Management Considerations:
- Texture contrast soil or deep sand over clay.
- Deep sandy material is alkaline at the surface becoming neutral to slightly acidic with depth.
- Deep loose sand, bleached, little nutrient holding capacity or available.
- Sandy material susceptible to wind and sheet erosion.
- Upper subsoil is acidic becoming alkaline with depth.
- Subsoil is sodic with pale colour and mottling, restricted drainage.
- Landform element, dune; well drained site drainage.
Profile Described By: John Martin, Nabil Badawy, Ron Cawood, Geoff Pope, John Galea, John Turner (1970).
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