Taniwha

75 - Taniwha - Dominant Soil @ Map Scale 1:50000

Associated Soil/s	76, 32  may also be found within this area (75)  if a more detailed survey was carried out.
Soil Properties of Dominant Soil/s
Parent material	Tikokino age alluvium from the erosion of Castlecliffian deposits (layers of sandstone, siltstone, mudstone and greywacke stones) over loess alluvium on red metal
Characteristics of site	Low-lying areas on gently sloping intermediate terraces
Soil features	Heavy silt loams to clay loams over clay on stony sandy loam over a cemented pan
Natural drainage Depth to perched gley	Poor Water perched at <30 cm on clay pan
Potential rooting depth, texture, and limiting layer	25 cm heavy silt loam on gleyed silt loam on clay pan at 30-45 cm on stony sandy loam at 60-75 cm on cemented pan at 75-100 cm
Available water capacity	50-75 mm
Infiltration rate	Slow
Permeability rate	Slow through clay, very slow through pan
Susceptibility to pugging and compaction when wet	Very high
Susceptibility to wind erosion when dry	Low
Unfavourable soil characteristics	Poor drainage water perched on clay pan at 30-45 cm Slow infiltration Slow permeability Topsoil easily compacted causing slow infiltration

 

Soil Management of Dominant Soil/s

Artificial drainage	Mole drains
Cultivate when moist to avoid compaction	75
Irrigation:- Recommended method Dripper spacing for continuous wetted strip Amount and frequency	Sprinkler to prevent waterlogging 60 cm 15-25 mm often to prevent waterlogging

 

Taniwha (75) (photo E. Griffiths)