4 Mutiatele mottled sand

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

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