| 8: Land with very severe to extreme limitations or hazards that make it unsuitable for cropping, pasture or forestry |
| 7: Non-arable land with severe limitations to use under perennial vegetation such as pasture or forest |
| 6: Non-arable land with moderate limitations for use under perennial vegetation such as pasture or forest |
| 5: High producing land unsuitable for arable use, but only slight limitations for pastoral or forestry use |
| 4: Land with moderate limitations for arable use, but suitable for occasional cropping, pasture or forestry |
| 3: Land with moderate limitations for arable use, but suitable for cultivated crops, pasture or forestry |
| E: Estuary |
| T: Town |