soil map units where 13A Deuba is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu |
| Landscape position | Beach dunes of the coastal margins |
| Soil parent material | high quartz sand |
| Slope | Flat to near level (0-1°). Weakly expressed ridge and swale microrelief. |
| Surface outcrops | No surface rock outcrops. No surface stones and boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-18cm fine sandy loam. 18-46cm medium sand. 46-115cm coarse sand. |
| Minimum effective rooting depth | <90cm. Note high seasonal water table and low subsoil nutrient status. |
| Soil pH (acidity) | 0-18cm moderately acid. 18-46cm strongly acid. 46-69cm moderately acid. 69-89cm strongly acid. 89-115cm moderately acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P) and potassium (K) throughout. |
| Soil moisture regime | aquic |
| Susceptibility to drought | Soil moisture deficits are never experienced. |
| Soil drainage | Very poorly drained. |
| Susceptibility to waterlogging | In normal years the water table fluctuates between 60cm (summer) and 90cm (winter) but can be at the surface for short periods. |
| Susceptibility to flooding | In normal years, and because of high water table and topographical position, flooding can occur for up to 10 days on 3-4 occasions sometime in the period November to April. |
