Location: Lake Tyers
Australian Soil Classification: Bleached Sodic, Magnesic, Brown KUROSOL
Map Unit: Waygara
Previous Site Name: EG221
General Landscape Description: Undulating rises
Site description: Simple upper slope 2%, north east aspect
Land Use: Grazing
Native Vegetation: Lowland forest
Geology: Neogene sediments (Late Tertiary)
Soil Profile Morphology:
Surface soil | |||
A1 | 0 – 20/30 cm | Dark greyish brown (10YR4/2); sandy loam; weak medium (10 – 20 mm) polyhedral structure; firm moist; clear wavy change to: | |
A2 | 20/30 – 50/35 cm | Pale brown (10YR6/3) conspicuously bleached (10YR/8/1d); sandy loam or loamy sand; apedal, single grain; firm consistence dry; sharp change to: | |
Subsoil | |||
B21 | 50/35 – 80 cm | Yellowish brown (10YR5/6); heavy clay; moderate coarse (20 – 50 mm) polyhedral structure; strong consistence moist; diffuse change to: | |
B22 | 80 – 110 cm | Yellowish brown (10YR5/6) with greyish brown (10YR5/2) and increasing yellowish red (5YR5/6) mottles; heavy clay; moderate coarse (20 – 50 mm) lenticular structure; strong consistence moist. |
- | pH | Salinity | ||
Surface soil (A1 horizon) | Moderately acid | Non sodic | Water stable | Nil (2 hours), Nil (20 hours) |
Subsoil (B21 horizon) | Strongly acid | Sodic | Partial | Slight (2 hours), Slight (20 hours) |
Deeper subsoil (80-110 cm) | Strongly acid | Strongly sodic | Considerable | Nil (2 hours), Nil (20 hours) |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Organic Carbon % | Total Nitrogen % | Exchangeable Aluminium ppm | Exchangeable Acididty meq/100g | Exchangeable Cations | Coarse Sand (0.2-2.0 mm) % | Fine Sand (0.02-0.2 mm) % | Silt (0.002-0.02 mm) % | Clay (<0.002 mm) % | Field Capacity % w/w | Wilting Point % w/w | |||
Ca | Mg | K | Na | |||||||||||||||
meq/100g | ||||||||||||||||||
A1 | 0-20/30 | 5.9 | 4.6 | 0.06 | 2.9 | 0.16 | 22 | 10.0 | 3.3 | 1.3 | 1 | 0.27 | 43 | 29 | 11 | 8 | 12.9 | 5.7 |
A2 | 20/30-50/35 | 5.3 | 4.1 | <0.05 | 0.57 | <0.05 | 74 | 3.6 | 0.51 | 0.33 | 0.15 | 0.12 | 48 | 29 | 12 | 6 | 13.9 | 3.0 |
B21 | 50/35-80 | 5.0 | 4.0 | <0.05 | 0.49 | <0.05 | 530 | 13.0 | 0.67 | 5.6 | 0.51 | 1.3 | 12 | 14 | 13 | 59 | 39.2 | 22.3 |
B22 | 80-110 | 5.4 | 4.4 | <0.05 | 0.37 | <0.05 | 110 | 8.0 | 0.21 | 9.9 | 0.32 | 3.2 | 15 | 13 | 15 | 54 | 36.5 | 20.8 |