Location: Fernbank (Tom’s Creek flood plain)
Australian Soil Classification: Mesotrophic, Mottled-Subnatric,Brown SODOSOL
Map Unit: Fernbank
Previous Name: EG255
General Landscape Description: Meander plain
Site description: Level
Native Vegetation: Plains grassy woodland
Geology: Neogene alluvial sediments
A11 | 0-30 cm | Greyish brown (2.5Y5/2); loamy sand; massive; clear change to: | |
A12 | 30-65 cm | Dark grey (10YR4/2); loamy coarse sand; massive, loose to very weak consistence moist; abundant (50-90%) rounded quartz pebbles (20-60 mm); clear change to: | |
A21 | 65- 85/90 cm | Yellowish brown (10YR5/4); coarse sand; massive; sharp wavy change to: | |
2A22 | 85/90-100/110 cm | Light grey; sandy loam; massive; sharp tongued boundary to: | |
Subsoil | |||
2B2 | 100 /110 – 180 cm | Greyish brown (2.5Y5/2) with common (10-20%) medium (5-15 mm) yellowish brown (10YR5/6) mottles; light medium clay; strong very coarse columnar structure, strongly parting to medium angular blocky; strong consistence dry; few (2-10%) large (20-60 mm) rounded quartz pebbles; diffuse change to: | |
2C | 180 – 270 cm | Brown (10YR5/3) with few (2-10%) faint coarse (15-30 mm) yellowish brown mottles; coarse sandy clay loam; massive; abundant (50-90%) large (20-60 mm) rounded quartz pebbles |
- | pH | Sodicity | |
Sub-surface (A11 horizon) | Strongly acidic | Non sodic | None |
(2A2 horizon) | Strongly acidic | Non sodic | None |
Subsoil 110-180 cm | Moderately acidic | Sodic | None |
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 | ||||||||||||||||||
A11 | 0-30 | 0.7 | <0.05 | 6.6 | 1.9 | |||||||||||||
A12 | 30-65 | 5.1 | 4.4 | <0.05 | 0.8 | <0.05 | 14 | 2.1 | 0.5 | 0.3 | <0.1 | <0.1 | 31 | 62 | 3 | 3 | 7 | 2.8 |
A2 | 65-90 | 5.2 | 4.4 | <0.05 | 0.3 | <0.05 | 36 | 3 | 0.2 | 0.4 | <0.1 | <0.1 | 62 | 27 | 3 | 4 | 5.6 | 1.4 |
2A21 | 90-100 | 5.4 | 4.7 | <0.05 | 7 | 1.1 | <0.1 | 0.1 | <0.1 | <0.1 | 55 | 39 | 3 | 2 | 9.5 | 4 | ||
2A22 | 100-110 | 5.9 | 4.6 | <0.05 | 6 | 1.5 | <0.1 | 0.8 | <0.1 | <0.1 | 44 | 36 | 10 | 10 | 9.5 | 4 | ||
2B2 | 110-180 | 5.7 | 4.3 | 0.08 | 110 | 9 | <0.1 | 5.0 | 0.1 | 1.1 | 26 | 22 | 4 | 46 | 30.2 | 18.4 | ||
2C | 180-270 | 5.8 | 4.5 | 0.08 | 15 | 3.3 | <0.01 | 2.7 | 0.1 | 0.8 | 55 | 23 | 4 | 17 | 13.5 | 7.1 |