Hi Hihifo soils

soil map units where Hi Hihifo soils is dominant

Soil properties

Property Value
Geographic distribution Niuatoputapu
Landscape position Colluvium (from ridge and upper terrace) occupying a belt concentric to Vaipoa and Tu’avao soils.
Soil parent material -
Slope Undulating (4-7°) to easy rolling (8-11°).
Surface outcrops -
Brief soil profile description 0-40 cm Very dark brown friable sandy clay loam; 40-75 cm Dark reddish brown friable clay loam with weathered lapilli; 75-90 cm Yellowish red sticky clay loam with weathered lapilli.
Soil profile texture -
Minimum effective rooting depth 90 cm
Soil pH (acidity) Near neutral
Salinity -
Soil fertility under natural conditions Organic carbon (C) and nitrogen (N) values low; 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 -

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