soil map units where Ug Unaltered gravels is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Tuvalu |
| Landscape position | Bare areas of unaltered coral gravels |
| Soil parent material | Coralline gravel |
| Slope | Flat (0-3°) |
| Surface outcrops | No surface outcrops |
| Brief soil profile description | Bare areas of unaltered coral gravels with no soil development |
| Soil profile texture | n/a |
| Minimum effective rooting depth | n/a |
| Soil pH (acidity) | n/a |
| Salinity | n/a |
| Soil fertility under natural conditions | Not analysed |
| Soil moisture regime | Ustic |
| Susceptibility to drought | n/a |
| Soil drainage | Excessively drained |
| Susceptibility to waterlogging | n/a |
| Susceptibility to flooding | n/a |
