SW107
Location: Cooriemungle
Australian Soil Classification: Vertic, Mesotrophic, Grey KUROSOL
General Landscape Description: Rolling rises.
Site Description: Drainage depression. Cattle grazing.
Geology: Gellibrand Marl.
Soil Profile Morphology:
Surface Soil
| Ap | 0-10 cm | Massive; pH 4.8; clear and smooth change to: |  |
| A11 | 10-30 cm | Dark grey (2.5Y4/1) sporadic bleach (2.5Y7/1d); fine sandy loam; massive; very weak consistence moist; contains a few (<10%) medium (5-10 mm in size) charcoal fragments; pH 5.2; clear and smooth change to: | |
| A12 | 30-90 cm | Light brownish grey (2.5Y6/2) with many distinct medium sized yellowish brown (10YR5/8) mottles and biological mixing; sandy loam (heavy); massive; firm consistence moist; contains a few (<10%) organic root linings; contains many prominent slickensides; fine sand found in cracks; pH 5.0; clear and irregular change to: | |
| Subsoil | |||
| B21 | 90-120+ | Greyish brown (2.5Y5/2) with many distinct medium sized yellowish brown (10YR5/8) mottles and biological mixing; medium clay (fine sandy); coarse polyhedral and lenticular structure; firm consistence moist; contains a few (10%) organic root linings; many prominent slickensides evident; pH 4.8. | |
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Soil Profile Characteristics:
| pH | Salinity Rating | |
Surface (Ap horizon) | Very Strongly Acid | Low - Medium | Non-Sodic |
Sub-Surface (A11 horizon) | Strongly Acid | Low - Medium | Sodic |
Subsoil (B21 horizon) | Very Strongly Acid | Low | Non-Sodic |
| The surface is strongly to very strongly acid throughout. | | The salinity rating is low to medium throughout. | | The clay content increases markedly at the surface/subsoil boundary. | | |
Horizon | Horizon Depth (cm) | pH (water) | pH CaCl2 | EC (dS/m) | NaCl % | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
meq/100g | |||||||||
Ap | 0-10 | 4.8 | 4.2 | 0.26 | 0.05 | 6.8 | 1.9 | 0.6 | 0.3 |
A11 | 10-30 | 5.2 | 4.6 | 0.24 | | 1.9 | 0.82 | 0.1 | 0.91 |
A12 | 30-90 | 5 | 4.6 | 0.26 | 0.06 | 1 | 0.5 | <0.1 | <0.1 |
B21 | 90-120+ | 4.8 | 4.3 | 0.32 | 0.07 | | | | |
Horizon | Horizon Depth (cm) | Exchangeable Acidity meq/100g | 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) |
Ap | 0-10 | | 36 | 20 | 48 | 11 | 6 |
A11 | 10-30 | 8.2 | 56 | 18 | 52 | 14 | 15 |
A12 | 30-90 | 7.9 | 130 | 17 | 51 | 19 | 12 |
B21 | 90-120+ | | | | | | |
Profile Described By: Natalie Baxter, Nathan Robinson and Richard McEwan (May 2001).
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