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| SW80 | Vertic, Mottled–Mesonatric, Grey SODOSOL | |
| 11 km East of Colac, close to junction of Collyers and Crabbe Roads | |||
| Undulating rises | |||
| Gellibrand Marl | |||
| Open depression | |||
| 0 | |||
| 0 | |||
Horizon | Depth (cm) | Description | ||
A1 | 0–15 | Very dark greyish brown (10YR3/2 moist), greyish brown (10YR5/2 dry); loam, fine sandy; weakly pedal structure; weak consistence (dry); gradual boundary to: | ||
A2e | 15–40 | Brown (10YR5/3 moist), conspicuously bleached (10YR7/2 dry); loamy sand; sharp boundary to: | ||
B21t | 40–90 | Very dark grey (10YR3/1 moist) with fine yellowish brown (10YR5/8) mottles; heavy clay; coarse (up to 400 mm) columnar structure, parting with difficulty to coarse blocky structure; slickensides across ped; gradual boundary to: | ||
B22gss | 90–140 | Very dark grey (10YR3/1 moist) with ~ 50% coarse olive brown (2.5Y4/4 moist) mottles; heavy clay; coarse columnar peds continuous from B21; slickensides more prominent than in B21 above; clear boundary to: | ||
B23g | 140+ | Conspicuously mottled, gleyed clay; massive structure. | ||
Management considerations | ||||
Very prone to waterlogging and a hostile subsoil render this a difficult unit to manage with little opportunity for improvement. |
Site SW80 | Sample depth | pH | EC | NaCl | Ex Ca | Ex Mg | Ex K | Ex Na | Ex Al | Ex acidity | FC (-10kPa) | PWP (-150kPa) | KS | FS | Z | C | |
Horizon | cm | H2O | CaCl2 | dS/m | % | cmolc/kg | cmolc/kg | cmolc/kg | cmolc/kg | mg/kg | cmolc/kg | % | % | % | % | % | % |
A1 | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R |
A2 | 20-40 | 5.4 | 4.5 | <0.05 | N/R | 1.2 | 0.29 | 0.19 | 0.07 | 17.0 | 5.6 | N/R | N/R | 3.7 | 62.2 | 23.0 | 8.0 |
Btg | 50-70 | 7.5 | 6.4 | 0.16 | N/R | 4.5 | 10.0 | 0.23 | 2.7 | N/R | N/R | N/R | N/R | 2.0 | 35.8 | 14.0 | 46.0 |
Bgt | 100-120 | 7.5 | 6.6 | 0.41 | 0.06 | 3.7 | 8.4 | 0.2 | 4.1 | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R |
Bg | 140+ | 7.5 | 6.6 | 0.46 | 0.09 | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R | N/R |