soil map units where 4 Mutiatele mottled sand is dominant
Soil properties
| Property | Value |
|---|---|
| Geographic distribution | Samoa |
| Landscape position | Soils of the coastlands, valley floors and their margins |
| Soil parent material | from calcerous sand |
| Slope | Flat and flattish. Wet but not markedly swampy. |
| Surface outcrops | Surface free from stones and boulders. No rock outcrops. |
| Brief soil profile description | - |
| Soil profile texture | 23cm mottled sand. 48cm sandy loam. on shelly sand |
| Minimum effective rooting depth | <90cm |
| Soil pH (acidity) | Topsoil slightly acid (pH = pH = 6.1). Subsoil moderately alkaline (pH = pH = 7.6). |
| Salinity | High Exchangeable sodium (Na) |
| Soil fertility under natural conditions | High fertility. Very high exchangeable potassium (K), calcium (Ca), magnesium (Mg) values. Available phosphorus (P) high |
| Soil moisture regime | - |
| Susceptibility to drought | 0-3 dry months. Rainfall 2000-4000mm. |
| Soil drainage | Moderately well drained |
| Susceptibility to waterlogging | Periodic high water table governed by high tides. |
| Susceptibility to flooding | <30cm above sea level |
