soil map units where Fm Felemea soils is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Ha'apai |
| Landscape position | Young ash in broad depressions in interiors of Uiha and Lifuka islands. |
| Soil parent material | - |
| Slope | Flat to very gently undulating (0-3°) |
| Surface outcrops | - |
| Brief soil profile description | 0-25 cm Very dark brown friable to firm clay;25-40 cm Greyish brown firm mottled clay;40-70 cm Greyish brown and yellowish red firm mottled sandy clay loam. |
| Soil profile texture | - |
| Minimum effective rooting depth | 70 cm |
| Soil pH (acidity) | Near neutral to slightly alkaline |
| Salinity | - |
| Soil fertility under natural conditions | Low organic carbon (C) and nitrogen (N); medium phosphorus (P) values and phosphorus (P) retention; very high exchangeable capacity and Base saturation (%); high exchangeable calcium (Ca), magnesium (Mg) and sodium (Na) and reserve magnesium (Mg) and K. |
| Soil moisture regime | - |
| Susceptibility to drought | - |
| Soil drainage | Imperfectly to poorly drained |
| Susceptibility to waterlogging | Moderate limitations of poor natural drainage. |
| Susceptibility to flooding | - |
