Location: Barangarook West | Australian Soil Classification: Bleached-Ferric (& Reticulate), Eutrophic, Brown CHROMOSOL (very thick loamy surface horizons) |
General Landscape Description: Gently inclined undulating rises | Site Description: Waning mid slope |
SW69 Landscape |
Soil Profile Morphology:
A1h | 0-15/20 cm | Very dark greyish brown (10YR3/2 moist and dry); sandy loam; apedal; pH 6.3; weak consistence; gradual change to: | SW69 Profile |
A21e | 20-40 cm | Very pale brown (10YR7/4 moist), conspicuously bleached (10YR7/2 dry); sandy loam; clear change to: | |
A22g | 40-60 cm | Very pale brown (10YR7/4 moist), conspicuously bleached (10YR7/2 dry); sandy loam; many (>25%) light yellowish brown (10YR6/4 moist) and dark yellowish brown (10YR4/6 moist) mottles; pH 5.7; clear change to: | |
A23c | 60-100 cm | Irregular to rounded Fe gravel (>80%) (10-30 mm) in very pale brown (10YR7/4 moist), conspicuously bleached (10YR7/2 dry); sandy loam matrix; abrupt change to: | |
Subsoil | |||
B21tg | 100-150 cm | Very dark grey (10YR3/1 moist) on ped faces, very distinct large reticulate mottles 40% grey (7.5YR6/1 moist), 50% yellowish brown (10YR5/8 moist), 10% yellowish red (5YR5/8 moist), brightest in ped centres; sandy light medium clay; medium polyhedral/blocky structure (<50 mm): | |
C/Bg | 150-230 cm | Very dark grey (10YR3/1 moist) on ped faces, mottled <20% grey (7.5YR6/1 moist), >60% yellowish brown (10YR5/8 moist), 10% yellowish red (5YR5/8 moist), brightest in ped centres; apedal except for B component; more sand than B21; pH 5.20: | |
2Bgb(?) | 230 cm+ | Very dark grey (10YR3/1 moist) on ped faces, 60% grey (7.5YR6/1 moist), 20% yellowish brown (10YR5/8 moist), 20% yellowish red (5YR5/8 moist), brightest in ped centres; pedal with dark clay/organic coatings; pH 5. |
pH | Salinity Rating | Sodicity | Dispersion | |
Surface (A1 horizon) | Slightly Acid | Very Low | Non-Sodic | None |
Subsoil (B21 horizon) | Moderately Acid | Very Low | Non-Sodic | None |
Deeper subsoil (at 150-230 cm) | Strongly Acid | Very Low | - | - |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC 1:5 | NaCl % | Exchangeable Cations | |||
Ca | Mg | K | Na | ||||||
meq/100g | |||||||||
A1 | 0-10 | 6.3 | 5.6 | 0.12 | 7.1 | 0.38 | 0.24 | 0.13 | |
A2 | 40-55 | 5.7 | 4.7 | <0.05 | 0.95 | 0.37 | <0.05 | <0.05 | |
B21 | 110-130 | 5.9 | 5 | 0.06 | 0.79 | 6.6 | 0.11 | 0.55 | |
B/C | 150-230 | 5.2 | 4.3 | 0.05 | |||||
2Bgb | 260-280 |
Horizon | Horizon Depth (cm) | Ex Al mg/kg | Ex Ac meq/100g | Field 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 | 0-10 | <10 | 6.5 | 18.5 | 6.2 | 26.9 | 45.9 | 14.5 | 9 |
A2 | 40-55 | 26 | 3.9 | 12.7 | 2.8 | 30.4 | 42 | 18 | 9.5 |
B21 | 110-130 | 11 | 6.5 | 23 | 14.4 | 29.2 | 24.4 | 6 | 40 |
B/C | 150-230 | ||||||||
2Bgb | 260-280 |