soil map units where 70B Nasou is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu, Vanua Levu |
| Landscape position | Fans and outwash surfaces in the lowlands and foothills |
| Soil parent material | river alluvium from basic and intermediate rocks |
| Slope | Undulating (4-7°). Smooth microrelief. |
| Surface outcrops | No surface rock outcrops. Few fine surface gravels. |
| Brief soil profile description | - |
| Soil profile texture | 0-9cm clay loam. 9-19cm gritty clay. 19-42cm gritty silt loam. 42-45cm silt loam. 45-77cm gritty silt loam. 77-79cm silt loam. 79-125cm gritty clay loam. |
| Minimum effective rooting depth | <125cm. Note low subsoil nutrient status. |
| Soil pH (acidity) | 0-125cm strongly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Nitrogen (N) and phosphorus (P) low. Potassium (K) extremely low. |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits of >120 days may be experienced sometime in the period May to October. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
