soil


The NZSC has an Hierarchical Structure with Four levels

15 Orders Soil orders are the highest, most generalised level of the classification and provide the national overview of New Zealand soils.
73 Groups The orders are divided into soil groups based on variation in factors such as drainage status, parent material, chemical and physical properties.
272 Subgroups The soil groups are divided into subgroups which provide more detail about the range of soils included in each soil group.
Soilforms The soil subgroups are subdivided into soilforms which provide more detail about the soil parent materials, texture and permeability.

An Example

order
group
subgroup
soilform
Oxidic
Perch-Gley Oxidic
Nodular Perch-Gley Oxidic
Typic Perch-Gley Oxidic
Typic Perch-Gley Oxidic,stoneless, clayey,moderate over slow
Nodular Oxidic
Nodular Oxidic
Orthic Oxidic
Typic Orthic Oxidic
Mottled Orthic Oxidic
Brown Orthic Oxidic