Na2 Nuku’alofa soils, sandy loam phase

soil map units where Na2 Nuku’alofa soils, sandy loam phase is dominant

Soil properties

Property Value
Geographic distribution Tongatapu
Landscape position Beach ridge.
Soil parent material
Slope Flat to gently undulating (0-3°)
Surface outcrops
Brief soil profile description 0-45 cm Black very friable sandy loam; 45-80 cm Very pale brown friable coarse sand; on Pale yellow sand.
Soil profile texture
Minimum effective rooting depth 100 cm+
Soil pH (acidity) Moderately alkaline
Salinity
Soil fertility under natural conditions Medium to high in organic carbon (C), total nitrogen (N) and phosphorus (P). High phosphorus (P) retention.
Soil moisture regime
Susceptibility to drought Moderate limitations of soil moisture deficit
Soil drainage Somewhat excessively drained
Susceptibility to waterlogging
Susceptibility to flooding

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