Location: Kernot | Aust. Soil Class.: Bleached, Mesotrophic, Brown KUROSOL (thick sandy surface) |
General Landscape Description: Crest (6% slope) of a hillslope of rolling hill. Original vegetation includes messmate | |
Geology: Tertiary sediments. |
GP56 Landscape |
A1 | 0-15 cm | Very dark grey (10YR3/1); loamy sand (organic); firm surface condition; weak structure; weak consistence dry; pH 4.7; clear change to: | GP56 Profile |
A21 | 15-40 cm | Brown (7.5YR5/2) bleached (7.5YR7/2d); loamy sand; massive structure; very weak consistence dry; pH 5.0; clear and wavy change to: | |
A22 | 40-55 cm | Brown (7.5YR5/2) bleached (7.5YR7/2d); loamy sand; massive structure; very firm consistence dry; patches of cemented sand present; pH 5.0; abrupt change to: | |
Subsoil | |||
B21 | 55-90 cm | Brown (7.5YR4/4); sandy clay loam; massive structure; firm consistence dry; contains a few (10%) subrounded iron concretions (40 mm in size), as well as a few (2-10%) sandstone fragments (2-6 mm in size) in gravel patches cemented by iron; pH 5.1; clear change to: | |
B22 | 90+ cm | Dark red (2.5YR4/6) with reddish yellow (7.5YR6/8) and pinkish grey (7.5YR7/2) mottles; very dark greyish brown (10YR3/2) stains down root channels; coarse sandy clay loam; moderate coarse polyhedral structure; sandstone (2-6 mm in size) gravel common (15-20%) in patches; pH 5.3. |
Key Profile Features:
pH | Salinity Rating | |||
Surface (A1 horizon) | Very Strongly Acid | Very Low | Non-Sodic | - |
Subsoil (B21 horizon) | Strongly Acid | Very Low | Sodic | - |
Deeper Subsoil (at 1 m) | Strongly Acid | Very Low | Sodic | - |
|
Horizon | Horizon Depth | pH (water) | pH CaCl2 | EC 1:5 | NaCl | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
Meq/100g | |||||||||
A1 | 0-15 | 4.7 | 3.6 | <0.05 | 2.1 | 0.8 | 0.11 | 0.14 | |
A21 | 15-40 | 5 | 3.9 | <0.05 | 0.66 | 0.14 | <0.05 | 0.06 | |
A22 | 40-55 | 5 | 4.1 | <0.05 | 0.4 | <0.05 | <0.05 | <0.05 | |
B21 | 55-90 | 5.1 | 4.2 | <0.05 | 1 | 0.54 | 0.28 | 0.13 | |
B22 | 90+ | 5.3 | 4.4 | <0.05 | 1.7 | 2.6 | 0.36 | 0.17 |
Horizon | Horizon Depth | Ex Al mg/kg | Ex Ac meq/100g | Wilting Point pF4.2 g/100g | Coarse Sand (0.2-2.0mm) % | Fine Sand (0.02-0.2mm) % | Silt (0.002-0.02mm) % | Clay (<0.002mm) % |
A1 | 0-15 | 21 | 12 | 4.8 | 33 | 48 | 13 | 2 |
A21 | 15-40 | <10 | 2.7 | 1.3 | 34 | 49 | 12 | 3 |
A22 | 40-55 | <10 | 1.5 | 1.2 | 31 | 47 | 15 | 5 |
B21 | 55-90 | 150 | 11 | 10 | 41 | 24 | 7 | 26 |
B22 | 90+ | 57 | 8.1 | 11.7 | 60 | 7 | 3 | 29 |