Location: Murrayville Landcare Group. | Australian Soil Classification: Calcareous, Arenic, Orthic TENOSOL |
General Landscape Description: East-west dunefield near the Big Desert. | Geology: Quaternary (Woorinen Formation) deposits. |
MP50 Landscape |
A1 | 0-12 cm | Greyish brown (7.5YR5/4); sand; non-calcareous; pH 7.6: | MP50 Profile |
A2 | 12-40 cm | Brown (7.5YR5/6); sand; non-calcareous; pH 8.9: | |
Subsoil | |||
B21 | 40-65 cm | Lightish brown (7.5YR6/6); sand; moderately calcareous; pH 9.2: | |
B22 | 65-100 cm | Lightish brown (7.5YR6/6); sand; contains a few (5%) soft calcareous segregations; very highly calcareous; pH 9.2: | |
B23k | 100+ cm | Sand; contains hard calcareous material formed into scattered boulders (60 cm size). |
pH | Salinity Rating | |||
Surface (A1 horizon) | Slightly alkaline | Very low | - | - |
Subsoil (B21 horizon) | Very strongly alkaline | Very low | - | - |
Deeper subsoil (at 65-100cm) | Very strongly alkaline | Very low | - | - |
The soil profile becomes increasingly alkaline with depth. | The level of soluble salts is low throughout the profile. | The coarse sand content is high throughout the profile. | The clay content remains low throughout the soil profile. |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | Total Nitrogen % | Organic Carbon % | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||||
meq/100g | ||||||||||
A1 | 0-12 | 7.6 | 7 | 0.06 | <0.05 | 0.32 | 1.8 | 0.61 | 0.4 | <0.05 |
A2 | 12-40 | 8.9 | 8.3 | 0.07 | 2.8 | 0.49 | 0.27 | <0.05 | ||
B21 | 40-65 | 9.2 | 8.6 | 0.09 | 4.9 | 0.5 | 0.18 | 0.14 | ||
B22 | 65-100 | 9.2 | 8.6 | 0.09 | 15 | 1.8 | 0.25 | 0.08 |
Horizon | Horizon Depth (cm) | 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) |
A1 | 0-12 | 4 | 2 | 46 | 50 | 1 | 4 |
A2 | 12-40 | 6 | 2 | 32 | 62 | 1 | 6 |
B21 | 40-65 | 5 | 2 | 35 | 59 | 1 | 6 |
B22 | 65-100 | 7 | 2 | 33 | 60 | 0 | 7 |