Summary
| Occurrence | Swan Coastal Plain (15%) |
|---|---|
| Soil Groups of Western Australia (WA) | 103 Semi-wet soils (Non saline) |
| Australian soil classifications | 103 Redoxic or Oxyaquic Hydrosol, Aquic or Semiaquic Podosol, Kandosol, Rudosol, Sodosol, Tenosol |
Distinguishing features
Topsoil
- Topsoil dark grey to black organically stained sands.
- Mildly acidic to neutral.
Subsoil
- Saturated below 30cm for the majority of time.
- Sands, loams and clays.
- Clays often has pale green, grey, blue gleyed surfaces associated with iron reduction.
Constraints
The following data has been derived from actual site samples taken. These results are recorded in this Excel spreadsheet.
| Rating | Implications |
|---|---|
| Not applicable (n/a) | No constraints identified |
| Minor | Minor constraint - reduces crop yields in some years |
| Major | Major constraint - reduces crop yields in most years |
| Severe | Severe constraint - will always reduce crop yields |
| Soil Group of WA | 103 Semi-wet soils (Non saline)* | 103 Semi-wet soils (Non saline)* |
| Constraints | Topsoil | Subsoil |
| Acidity and aluminium toxicity | Severe | Severe |
| Salinity | Minor | n/a |
| Sodicity and alkalinity | n/a | n/a |
| Boron toxicity | n/a | n/a |
| Poor nutrient retention | Severe | Severe |
| Aggregate stability | n/a | Major |
| Compaction and hard layers | n/a | Minor |
| Hard setting and crusting | n/a | n/a |
| Water repellence | Minor | n/a |
| Low plant available water | n/a | n/a |
| Water-logging (seasonal) | Major | Severe |
| Wind erosion (seasonal) | Minor | n/a |
| Water erosion (seasonal) | n/a | n/a |
*Note - Data derived from site identifications (ID's).
- Soil Group of WA - 103 Semi-wet soils (Non saline) site ID includes: BMA 0354V, BMA 0353.
Further information
McArthur, WM (2004) Reference Soils of South-western Australia (Reprint). Department of Agriculture, Western Australia.
McArthur, WM and Bettenay, E (1960) The Development and Distribution of the Soils of the Swan Coastal Plain, Western Australia. Publication No.16. CSIRO, Melbourne, Vic.
Moore, G (2004) Soil Guide: A Handbook for Understanding and Managing Agricultural Soils. Bulletin 4343. Department of Agriculture, Western Australia.
Schoknecht, N and Pathan, S (2013) Soil Groups of Western Australia. Resource Management Technical Report 380. Department of Agriculture and Food, Western Australia.
Smolinski, HJ and Scholz, G (1997) Soils of the West Gingin Area. Land Resources Series No. 15. Agriculture Western Australia.
Tille, PJ and Lantzke, NC (1990) Busselton Margaret River Augusta Land Capability Study. Land Resources Series No. 5. Department of Agriculture, Western Australia.
Wells, MR (1989) Land Capability Study of the Shires of Mandurah and Murray. Land Resources Series No. 2. Western Australian Department of Agriculture.