soil map units where 106H Nacaugai is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Taveuni, Laucala |
| Landscape position | Young volcanic hill country in the lowlands and foothills |
| Soil parent material | basaltic scoria cones |
| Slope | Very steep (36-40°). Very uneven microrelief. |
| Surface outcrops | No surface rock outcrops. Boulders occupy 10% of the surface. |
| Brief soil profile description | - |
| Soil profile texture | 0-30cm very friable gritty clay loam. 30-130cm very friable very stony and bouldery silty clay. 130-160cm very friable gritty silty clay loam. |
| Minimum effective rooting depth | >125cm |
| Soil pH (acidity) | 0-30cm moderately acid. 30-150cm slightly acid. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | Very low phosphorus (P), potassium (K) and nitrogen (N). Very high phosphate fixation properties. |
| Soil moisture regime | udic/perudic |
| Susceptibility to drought | In normal years soil moisture deficits are never experienced. |
| Soil drainage | Well drained. |
| Susceptibility to waterlogging | Never waterlogs. |
| Susceptibility to flooding | Never floods. |
