Fg Fungamafa soils

soil map units where Fg Fungamafa soils is dominant

Soil properties

Property Value
Geographic distribution Niuatoputapu
Landscape position Basaltic andesite lava on central ridge and upper terrace.
Soil parent material
Slope Rolling (12-15°) to
Surface outcrops
Brief soil profile description 0-20 cm Dark brown friable clay; 20-50 cm Dark brown firm clay; 50-100 cm Strong brown friable silty clay;100+ Consolidated rock.
Soil profile texture
Minimum effective rooting depth 100 cm
Soil pH (acidity) Slightly alkaline
Salinity
Soil fertility under natural conditions Organic carbon (C) and nitrogen (N) values low; phosphorus (P) and total phosphorus (P) are very high; sulphur (S) values medium; Base saturation (%) and calcium (Ca) very high; potassium (K)high and sodium (Na) medium.
Soil moisture regime
Susceptibility to drought
Soil drainage Well drained
Susceptibility to waterlogging
Susceptibility to flooding

Partners and funders