Location: Simpson. | Australian Soil Classification: Humose-Acidic, Kandosolic, Redoxic HYDROSOL. |
General Landscape Description: Gently undulating plain (plateau). | Site Description: Gentle slope between plateau and depression. |
Geology: Hanson Plain Sand. |
Soil Profile Morphology
:A11 | 0-40/45 cm | Black (2.5Y2.5/1), grey (2.5Y6/1 dry) to light yellowish brown (2.5Y6/4 dry); light fine sandy loam; weakly pedal; very weak consistence; moderate amount of roots present; pH 5.1; clear change to: | Site SW64 profile |
A12 | 45-55/60 cm | Greyish brown (2.5Y5/2 moist and dry); loamy sand; apedal; firm consistence; diffuse change to: | |
Subsoil | |||
B21g | 55/60-120 cm | Yellowish brown (10YR5/8) with light yellowish brown (2.5Y6/3) mottles; clayey sand; apedal; firm consistence; pH 4.8; gradual change to: | |
B22g | 120 cm+ | Light brownish grey (10YR6/2) with very coarse prominent yellowish brown (10YR5/6 and 5/8) mottles; clayey sand; apedal. |
pH | Salinity Rating | |||
Surface (A1 horizon) | Strongly Acid | Low | Non-Sodic | - |
Subsoil (B21 horizon) | Very Strongly Acid | Low | Non-Sodic | - |
Horizon | Horizon Depth (cm) | pH (water) | pH CaCl2 | EC 1:5 | Exchangeable Cations | |||
Ca | Mg | K | Na | |||||
meq/100g | ||||||||
A1 | 0-40 | 5.1 | 4.5 | 0.26 | 2.3 | 0.5 | 0.5 | 0.3 |
B21g | 55-120 | 4.8 | 4.2 | 0.06 | 0.09 | 0.54 | <0.05 | 0.18 |
Horizon | Horizon Depth (cm) | Exchangeable Aluminium mg/kg | Exchangeable Acidity meq/100g | 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 | 0-40 | 17 | 16 | 37 | 38 | 10 | 5 |
B21g | 55-120 | 150 | 5.7 | 28 | 42 | 12 | 21 |