This Te Puke soil profile shows that it is made up of a number of volcanic ash showers. The top 25 millimetres is Kaharoa ash, some 660 years old. The oldest shower at the base of the profile is 20,000-year-old Kawakawa ash. Te Puke soils are widely used for kiwifruit production.
Te whakamahi i tēnei tūemi
New Zealand Society of Soil Science
Reference:
Les Molloy, Soils in the New Zealand landscape: the living mantle. Wellington: Mallinson Rendel, 1988, plate 3.4
Photograph by Quentin Christie
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