| New Soil Order classification | Gley
Poorly to very poorly drained, oxygen limitations are high and colour is greyish. |
| Old Soil Group classification | Gley or Glyed Recent. | |
| Common names associated with this Soil Order | Ahuriri, Awamate, Makauri, Pukehou, Okawa, Raumati, Hastings, Kaiapo, Irongate, Willowbrook, Taniwha, Te Awa, Otane, Moteo, Meeanee. |
| Physical characteristics | - Strongly affected by waterlogging, have been chemically reduced.
- Located where watertable is seasonally high, or where drainage is impeded by a pan.
- Colluvial sites could be included in this group. Eroded soil from slopes deposited on top of existing soils in the footslope area with humps and hollows.
- High clay content ranging from 20-80%.
- Organic matter levels usually high.
- Highly anaerobic - low areation.
|
Okawa soil
Source: E Griffiths