105G Nasau

soil map units where 105G Nasau is dominant

Soil properties

Property Value
Geographic distribution Cicia, Koro, Taveuni
Landscape position Young volcanic hill country in the lowlands and foothills
Soil parent material older pahoehoe lavas
Slope Steep (26-35°). Uneven microrelief.
Surface outcrops Surface rock outcrops cover 8% of the surface. Surface boulders occupy 5% of the surface.
Brief soil profile description -
Soil profile texture 0-9cm very friable silty clay loam. 9-15cm very friable silty clay. 15-45cm friable silty clay. 45-70cm firm clay loam.
Minimum effective rooting depth <70cm. In situ basalt rock at 70cm.
Soil pH (acidity) 0-45cm moderately acid. 45-70cm slightly acid.
Salinity Non saline.
Soil fertility under natural conditions Low phosphorus (P) and potassium (K). Moderate phosphate retention.
Soil moisture regime udic/perudic
Susceptibility to drought In normal years soil moisture deficits of up to 100 days are experienced sometime in the period May to October.
Soil drainage Well drained.
Susceptibility to waterlogging Never waterlogs.
Susceptibility to flooding Never floods.

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