6A Nuku

soil map units where 6A Nuku is dominant

Soil properties

Property Value
Geographic distribution Viti Levu, Vanua Levu
Landscape position Beach dunes of the coastal margins
Soil parent material calcareous sand
Slope Flat to gently undulating (0-2°). Smooth flat microrelief.
Surface outcrops No surface rock outcrops. Few surface coral stones.
Brief soil profile description -
Soil profile texture 0-10cm loamy clay. 10-109cm+ coarse sand.
Minimum effective rooting depth >105cm. Note, low nutrient status below 10cm.
Soil pH (acidity) 0-10cm moderately alkaline. 10-109cm strongly alkaline.
Salinity Non saline.
Soil fertility under natural conditions Very low potassium (K) throughout. Available phosphorus (P), organic carbon (C) and nitrogen (N) very low below 10cm depth.
Soil moisture regime udic/perudic
Susceptibility to drought In normal years soil moisture deficits of 30 days are experienced sometime in the period May to October.
Soil drainage Somewhat excessively drained.
Susceptibility to waterlogging Never waterlogs.
Susceptibility to flooding Never flooded. Subject to wave encroachment during severe storm events.

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