OTR500
Australian Soil Classification: Bleached, Dystrophic, Grey KANDOSOL / KUROSOL
Northcote Factual Key: GN2.41
General Landscape Description: Low Hills, Hills
Site Description: Mid Slope Slope: 12% Aspect: North
Native Vegetation: Heath; Ghania filum, Hakea ulicina, Xanthorrea austalis, Heath spp ., E. nitida, E. obliqua
Geology: Tae: Paleogene (Tertiary) fluvial sediments; gravel, sand, clay, brown coal (Eastern View Formation). [Kl: Cretaceous sediments; felspathic sandstone (Eumeralla Formation)]
Soil Profile Morphology:
Surface Soil
| A1 | 0-10 cm | Dark yellowish brown (10YR4/4); sandy clay loam; single grain structure; pH 5.5; clear change to: |  |
| A2 | 10-50 cm | Brownish yellow (10YR6/6), conspicuously bleached; sandy clay loam; apedal, single grain structure; abundant quartz gravel; pH 5.2; abrupt change to: | |
| Subsoil | | ||
| 2B2 | 50-90 cm | Very pale brown (10YR8/3); medium clay; weak platy structure; strong consistence, dry; pH 5.1 | |
| | | |
Soil Profile Characteristics:
| Salinity Rating | ||
Surface (A1 horizon) | Strongly Acid | Very Low | Non-Sodic |
Subsoil (2B2 horizon) | Strongly Acid | Very Low | Non-Sodic |
|
| The profile is strongly acid. | | The salinity rating in this profile is very low. | | This profile is non-sodic. | | The clay content is moderate and increases with depth. |
Horizon | Horizon Depth (cm) | pH (water) | EC dS/m | Organic Carbon % | Total N % | P ppm | K ppm | Free Fe % | Exchangeable Cations | Total Bases cmolc/kg | Ex Ac cmolc/kg | CEC cmolc/kg | |||
Ca | Mg | K | Na | ||||||||||||
cmolc/kg | |||||||||||||||
A1 | 0-10 | 5.5 | 0.05 | 1.5 | 0.057 | 4 | 80 | 0.8 | 0.3 | 0.8 | 0.09 | 0.04 | 1.23 | 3.47 | 4.7 |
A2 | 10-20 | 5.2 | 0.03 | 0.3 | 0.012 | 6 | 20 | 0.8 | 0.2 | 0.5 | 0.04 | 0.01 | 0.75 | 1.65 | 2.4 |
A2 | 20-30 | 5.2 | 0.03 | 0.3 | 0.015 | 4 | 20 | 0.9 | 0.1 | 0.7 | 0.04 | 0.01 | 0.85 | 3.05 | 3.9 |
2B2 | 50 - 60 | 5.1 | 0.03 | | | 4 | 20 | 0.3 | 0.1 | 0.7 | 0.03 | 0.02 | 0.85 | 4.05 | 4.9 |
Horizon | Horizon Depth (cm) | Gravel % | Coarse Sand (0.2-2.0 mm) | Fine Sand (0.02-0.2 mm) | Silt (0.002-0.02 mm) | Clay (<0.002 mm) |
A1 | 0-10 | 8 | 51 | 11 | 4 | 29 |
A2 | 10-20 | 4 | 66 | 4 | 2 | 25 |
A2 | 20-30 | 5 | 59 | 3 | 2 | 34 |
2B2 | 50 - 60 | <1 | 4 | 14 | 33 | 47 |
Profile Described By: Andrew Thornley, 17th February 1970.
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