soil map units where 50A Narewa is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu, Vanua Levu |
| Landscape position | Secondary floodplains and depressions in the lowlands and foothills |
| Soil parent material | river alluvium from basic and intermediate rocks |
| Slope | Flat to near level (0-2°). Uneven (gilgai) microrelief). |
| Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-63cm firm clay. 63-95cm soft clay. |
| Minimum effective rooting depth | 50-75cm. Note seasonal high water table. |
| Soil pH (acidity) | 0-95cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P) and potassium (K). |
| Soil moisture regime | aquic |
| Susceptibility to drought | In normal years soil moisture deficits of 30-60 days in the upper 75cm are experienced sometime in the period May to October. |
| Soil drainage | Poorly drained. |
| Susceptibility to waterlogging | In normal years waterlogging below 50cm depth and for up to 90 days occurs sometime in the period November to April. |
| Susceptibility to flooding | In normal years infrequent (2-3 per year) surface floods that may pond for up to 5 days are experienced sometime in the period November to April. |
