Location: Banksia Peninsula
Australian Soil Classification: Magnesic, Subnatric, Brown SODOSOL
Map Unit: Fernbank
Previous Site Name: EG254
General Landscape Description: Undulating Rises
Site Description: SE aspect, 7% slope
Native Vegetation: Plains grassy woodland
Geology: Pleistocene alluvial sediments
Soil Profile Morphology:
Surface Soil
A11 | 0 – 10 cm | Very dark grey (7.5YR3/1); loamy sand; weak fine subangular blocky structure; firm consistence dry; clear change to: | |
A12 | 10 – 35 cm | Very dark grey (7.5YR2/1); loamy sand; abundant (50-90%) medium (6-20 mm) rounded quartz and sandstone pebbles; firm consistence, dry; gradual change to: | |
A2 | 35 – 50/60 cm | Brown (10YR5/3) conspicuously bleached very pale brown (10YR7/3d); sandy loam; massive, abrupt and wavy change to: | |
Subsoil | |||
B21 | 50/60 – 110 cm | Brown (7.5YR4/4) with grey mottles; light medium clay; weak medium angular blocky structure; strong consistence dry; gradual change to: | |
B22 | 110 – 180 cm | Yellowish brown (10YR5/8) with few coarse (15-30 mm) grey (10YR5/1) mottles; sandy clay; massive; clear change to: | |
C1 | 180 – 240 cm | White (2.5Y8/1) with common (10-20%) prominent fine medium (5-15 mm) dark yellowish brown (10YR4/4) mottles; light clay; firm consistence moderately moist. |
- | pH | Salinity | |
Surface soil (A11 horizon) | Strongly Acid | Non-sodic | None1 |
Subsurface (A2 horizon) | Moderately Acid | Non-sodic | Slight 2 |
Subsoil (B21 horizon) | Moderately Acid | Sodic | Moderate 2 |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Organic Carbon % | Total Nitrogen % | Exch. Al ppm | Exch. 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 cap. % w/w | Wilt. point % w/w | |||
Ca | Mg | K | Na | |||||||||||||||
meq/100g | ||||||||||||||||||
A11 | 0-10 | 5.5 | 4.5 | 0.19 | 4.8 | 0.36 | 45 | 12 | 4.4 | 1.0 | 0.9 | <0.1 | 54 | 24 | 8 | 5 | 25.3 | 10.0 |
A12 | 10-35 | 5.6 | 4.7 | 0.06 | 1.7 | 0.09 | 56 | 8.9 | 1.6 | 1.5 | <0.1 | <0.1 | 54 | 26 | 11 | 6 | 17.9 | 4.6 |
A2 | 35-52 | 6.0 | 5.0 | 0.08 | 16 | 3.5 | 0.4 | 1.9 | <0.1 | 0.2 | 53 | 22 | 12 | 12 | 12.5 | 5.1 | ||
B21 | 52-110 | 5.6 | 4.6 | 0.32 | 8 | 5.8 | <0.1 | 3.2 | <0.1 | 0.8 | 46 | 10 | 5 | 36 | 25.5 | 14.4 | ||
B22 | 110-180 | 5.4 | 4.7 | 0.40 | 13 | 4 | <0.1 | 3.0 | <0.1 | 1.0 | 54 | 13 | 3 | 32 | 22.1 | 11.1 | ||
C1 | 180-240 | 5.5 | 4.8 | 0.78 | 14 | 4.8 | <0.1 | 6.8 | 0.3 | 2.9 | 0.4 | 8 | 50 | 37.5 | 38.3 | 20.2 |