soil map units where 94G Koro is dominant
Soil properties
Property | Value |
---|---|
Geographic distribution | Taveuni, Koro |
Landscape position | Young volcanic hill country in the lowlands and foothills |
Soil parent material | young pahoehoe lava |
Slope | Steep (26-35°). Very uneven microrelief. |
Surface outcrops | Rock outcrops cover 15% of the surface. Boulders occupy 20% of the surface. |
Brief soil profile description | - |
Soil profile texture | 0-13cm very friable silty clay. 13-30cm friable silt loam. On weathered in situ basalt. |
Minimum effective rooting depth | <50cm. In situ weathered basalt at 50cm. |
Soil pH (acidity) | 0-30cm moderately acid. |
Salinity | Non saline. |
Soil fertility under natural conditions | Very low potassium (K) and nitrogen (N). High phosphate fixation properties. |
Soil moisture regime | udic/perudic |
Susceptibility to drought | In normal years soil moisture deficits of up to 50 days may be experienced sometime in the period May to October. |
Soil drainage | Well drained. |
Susceptibility to waterlogging | Never waterlogs. |
Susceptibility to flooding | Never floods. |