WWPS2
Location: Longeranong
Australian Soil Classification: Hypocalcic, Subnatric, Brown SODOSOL
Northcote Factual Key: Dr2.13
Soil Type: Drung Sandy Clay Loam
Soil Map Unit: X (complex unit with 4 soil types).
General Landscape Description: Prior stream in a flood plain. Floods infrequently. Slightly higher in landscape to WWPS1.
Site Description: Cropping paddock with occasional grazing. Poorly drained.
Native Vegetation: Savannah Woodland (yellow gum) with areas of grassland.
Geology: Marine sandstone – deposited from the retreating marine Tertiary sea, later being hardened to form the Diapur Sandstone. Late Pleistocene.
| WWPS2 Landscape |
Soil Profile Morphology:
Surface Soil
| A1 | 0-10 cm | Dark brown (10YR3/3); hardsetting surface condition; fine sandy clay loam; weak medium blocky, parting to weak fine blocky structure; rough fabric; strong consistence dry; pH 6.6; abrupt and smooth change to: |  WWPS2 Profile |
| Subsoil |  | ||
| B21 | 10-20 cm | Dark brown (10YR3/3); heavy clay; moderate to strong medium prismatic, parting to moderate to strong fine prismatic structure; rough fabric; very strong consistence dry; common distinct slickensides evident; pH 6.7; abrupt and wavy change to: | |
| B22 | 20-30 cm | Dark brown (10YR3/3), with common medium faint red mottles; heavy clay; strong medium prismatic, parting to strong fine prismatic structure; smooth fabric; very strong consistence dry; common distinct slickensides evident; pH 7.8; abrupt and wavy change to: | |
| B23 | 30-50 cm | Yellowish red (5YR4/6) with common medium faint dark yellowish brown (10YR3/4) mottles; medium clay; strong medium prismatic, parting to strong fine prismatic structure; smooth fabric; very strong consistence dry; a few faint slickensides evident; pH 7.6; gradual and wavy change to: | |
| B24 | 50-65 cm | Yellowish red (5YR5/8) with common medium faint dark yellowish brown (10YR3/4) mottles; heavy clay; strong coarse blocky, parting to strong medium blocky structure; smooth fabric; very strong consistence dry; contains very few medium calcareous nodules; common faint slickensides evident; slightly calcareous; pH 9.2; clear and wavy change to: | |
| B25 | 65-95 cm | Yellowish red (5YR5/8) with common medium faint black-brown mottles; heavy clay; strong medium prismatic structure; smooth fabric; very strong consistence dry; contains common extremely coarse calcareous nodules in patches; common faint slickensides evident; moderately calcareous: pH 9.2; clear and wavy change to: | |
| B26 | 95-110 cm | Yellowish red (5YR5/8) with many medium distinct dark yellowish brown (10YR4/6) mottles; medium clay; strong fine blocky, parting to strong very fine blocky structure; smooth fabric; very firm consistence moderately moist; contains a few extremely coarse calcareous nodules in patches; moderately calcareous; pH 9.1. | |
Soil Profile Characteristics:
| - | pH | Salinity | ||
Surface (A1 horizon) | Slightly Acid | Low | Non-Sodic | Nil1 |
Subsoil (B21 horizon) | Slightly Acid | Low | Sodic | Moderate2 |
Deeper Subsoil (at 95-110 cm) | Very Strongly Alkaline | High | Strongly-Sodic | Nil |
| The surface and upper subsoil are slightly acid. The deeper subsoil is very strongly alkaline. | | The salinity rating in the surface and upper subsoil is low. The salinity rating in the lower subsoil rises to high levels. | | The surface is non-sodic. The upper subsoil is sodic and the deeper subsoil is strongly sodic. | |
| | Boron content increases with depth. It is relatively high in the deeper subsoil. |
Chemical and Physical Analysis:
Horizon | Horizon Depth (cm) | pH water | pH CaCl2 | EC dS/m | Organic Carbon % | Total Nitrogen % | Exchangeable Cations | Boron mg/kg | Field Capacity pF2.5 | Wilting Point pF4.2 | Coarse Sand (0.2 - 2.0 mm) | Fine Sand (0.02-0.2 mm) | Silt (0.002-0.02 mm) | Clay (<0.002 mm) | |||
Ca | Mg | K | Na | ||||||||||||||
meq/100g | |||||||||||||||||
A1 | 0-10 | 6.6 | 6.1 | 0.19 | 1.9 | 0.15 | 10 | 3.6 | 2.1 | 0.64 | 2.5 | 31.3 | 12.5 | 19 | 35 | 22 | 20 |
B21 | 10-20 | 6.7 | 5.9 | 0.12 | | | 7.3 | 5 | 1.1 | 1.2 | 3.1 | 47.4 | 23.8 | 19 | 33 | 10 | 35* |
B22 | 20-30 | 7.8 | 7.1 | 0.31 | | | 11 | 14 | 1.9 | 3.7 | 10 | 45.9 | 23.6 | 11 | 18 | 6 | 63 |
B23 | 30-50 | 7.6 | 6.8 | 0.3 | | | 10 | 11 | 1.8 | 3.1 | <0.3* | 50.7 | 27.6 | 9 | 18 | 8 | 60 |
B24 | 50-65 | 9.2 | 8.6 | 0.75 | | | 6 | 15 | 1.8 | 6.8 | 26 | 51.0 | 26.8 | 11 | 20 | 30 | 37* |
B25 | 65-95 | 9.2 | 8.6 | 1.1 | | | 5.4 | 14 | 1.8 | 8.1 | <0.3* | 42.2 | 21.1 | | | | |
B26 | 95-110 | 9.1 | 8.5 | 1.4 | | | 6.1 | 15 | 2 | 9.4 | 23 | | | | | | |
Profile Described By: Mark Imhof & John Martin (October 2006).
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