58A Rawiti

soil map units where 58A Rawiti is dominant

Soil properties

Property Value
Geographic distribution Vanua Levu
Landscape position Secondary floodplains and depressions in the lowlands and foothills
Soil parent material river alluvium from andesitic rocks
Slope Flat to gently undulating (0-3°). Slight alluvial ridge and swale microrelief.
Surface outcrops No surface rock outcrops. No surface stones or boulders.
Brief soil profile description -
Soil profile texture 0-15cm silty clay. 15-21cm clay. 21-29cm silt loam. 29-37cm clay loam. 37-125cm+ clay.
Minimum effective rooting depth <125cm. Note high seasonal water table.
Soil pH (acidity) 0-125cm strongly acid.
Salinity Non saline.
Soil fertility under natural conditions Potassium (K) very low throughout.
Soil moisture regime ustic
Susceptibility to drought In normal years soil moisture deficits of up to 30-40 days are experienced sometime in the period May to October.
Soil drainage Imperfectly drained.
Susceptibility to waterlogging Water table fluctuates from 50cm depth (summer months) to 150cm depth (winter months).
Susceptibility to flooding Floods (water only) on average twice sometime in the period November to April. Flood sedimentation events have a 1 in 15 year return period.

Partners and funders