soil map units where 80A Tuvuca is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Lau |
| Landscape position | Kaast landscapes in the lowlands and foothills |
| Soil parent material | residual material over raised coralline limestone |
| Slope | Flat to near level (0-2°). Smooth microrelief. |
| Surface outcrops | Rock outcrops cover 10% of area. No surface stones or boulders. |
| Brief soil profile description | - |
| Soil profile texture | 0-100cm very friable slightly gritty very sandy loam. |
| Minimum effective rooting depth | >100cm. Note extremely high Mn levels. |
| Soil pH (acidity) | 0-10cm slightly alkaline. |
| Salinity | Non saline. |
| Soil fertility under natural conditions | - |
| Soil moisture regime | ustic |
| Susceptibility to drought | In normal years soil moisture deficits >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. |
