soil map units where 164D Yavuna is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Viti Levu |
| Landscape position | Hill country in the lowlands and foothills |
| Soil parent material | in situ acidic rocks (granite, andesite and dacite) |
| Slope | Rolling (12-15°). Uneven (terracettes) microrelief. |
| Surface outcrops | Surface rock outcrops cover 5-8% of the area. Common surface stones. |
| Brief soil profile description | - |
| Soil profile texture | 9-7cm silt loam. 7-24cm gritty sandy loam. On weathered in situ rock. |
| Minimum effective rooting depth | <25cm. In situ rock at 25cm. |
| Soil pH (acidity) | 0-7cm slightly acid. 7-24cm near neutral. 24-50cm+ slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low potassium (K) and nitrogen (N). Low phosphorus (P). |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits of 100 days are experienced sometime in the period May to October. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
