Location: Doctors Flat
Australian Soil Classification: Eutrophic, Subnatric, Red SODOSOL
Map Unit: Dargo (Component 1)
Previous Site Name: EG207
General Landscape Description: Rolling low hills
Site description: Mid north-west facing slope (8% slope)
Land Use: Grazing on annual pasture
Native Vegetation: Grassy woodland
Geology: Palaeozoic granite
Surface soil | |||
A1 | 0 – 15 cm | Dark brown (10YR4/3); sandy loam; weak fine (2 – 5 mm) granular structure; weak consistence dry; clear change to: | |
A2 | 15 – 20/25 cm | Very pale brown (10YR7/4) conspicuously bleached (10YR8/3d); sandy loam; apedal; very weak consistence dry; many (20 – 50 %) coarse (6 – 20 mm) ferruginous concretions; sharp wavy change to: | |
Subsoil | |||
B21 | 20/25 – 45 cm | Yellowish red (5YR5/6); medium clay; moderate medium (10 -20 mm) angular blocky structure; strong consistence dry; diffuse change to: | |
B22 | 45 – 75 cm | Reddish brown (10YR5/4); medium clay; weak medium (10 -20 mm) angular blocky structure; strong consistence dry; few (2 – 10 %) manganiferous veins; diffuse change to: | |
B23 | 75 – 110 cm | Light reddish brown (10YR6/4); medium clay with sand; very strong consistence dry; very few (<2 %) manganiferous veins |
- | pH | Salinity | ||
Surface soil (A1 horizon) | Strongly Acid | Very Low | Non-sodic | None |
Subsoil (B21 horizon) | Slightly Acid | Very Low | Sodic | Slight |
Deeper subsoil (75-110cm) | Strongly Alkaline | Low | None |
Horizon | Horizon Depth (cm) | pH (water) | 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 | 0-15 | 5.1 | 0.1 | 1.6 | 0.12 | 16 | 6.3 | 1.3 | 0.52 | 0.48 | 0.11 | 43 | 37 | 9 | 4 | 11.8 | 3.6 |
A2 | 15-20/25 | 5.5 | <0.05 | 0.66 | <0.05 | 19 | 4.6 | 0.79 | 0.52 | 0.24 | 0.07 | 41 | 38 | 11 | 6 | 11.5 | 2.5 |
B21 | 20/25-45 | 6.5 | 0.08 | 0.54 | 2.5 | 4.8 | 9.1 | 1.1 | 0.82 | 12 | 26 | 12 | 47 | 31.1 | 18.2 | ||
B22 | 45-75 | 7.6 | 0.14 | 0.41 | 3.6 | 11 | 0.39 | 1.5 | 20 | 28 | 13 | 36 | 26.9 | 14.8 | |||
B23 | 75-110 | 8.7 | 0.33 | 0.3 | 21 | 23 | 12 | 40 | 33.7 | 17.4 |