44H Fa'amasa hill soils

soil map units where 44H Fa'amasa hill soils is dominant

Soil properties

Property Value
Geographic distribution Samoa
Landscape position Soils of the lowlands and foothills - slightly dissected landscapes
Soil parent material from scoria basalt of the Mulifanua Volcanics
Slope Moderately steep slopes of small cones
Surface outcrops Surface occasionally stony. No rock outcrops.
Brief soil profile description -
Soil profile texture 20cm gritty silty clay loam. 30cm gritty silt clay. on weathered scoria
Minimum effective rooting depth <50cm
Soil pH (acidity) Moderately acid (pH = 5.8)
Salinity Non saline
Soil fertility under natural conditions Moderate topsoil fertility, low in subsoil. Exchangeable potassium (K) and organic calcium (C) moderate in topsoil, very low in subsoil.
Soil moisture regime Without dry season (Perudic moisture regime)
Susceptibility to drought No dry season. Rainfall 4375-5000mm.
Soil drainage Well drained
Susceptibility to waterlogging Never waterlogs
Susceptibility to flooding Never floods

Partners and funders