Soil nutrient dynamics during podzol development under lowland temperate rain forest in New Zealand

Auteur(s) et Affiliation(s)



Description :
The Haast chronosequence on the west coast of the South Island of New Zealand consists of a series of coastal dune ridges formed by periodic earthquake disturbance over the last 6 500 years. It approximates an ideal chronosequence. The AA. assessed soil development and the changes in nutrients at 11 sites along the sequence to determine rates of nutrient transformations and the potential for limitation of biological activity by nitrogen and phosphorus availability. Soils develop rapidly to podzols (Spodosols) under the super-humid climate. The rates of soil development and phosphorus depletion are more rapid than at the nearby Franz Josef post-glacial chronosequence, where glacial moraine derived from graywacke contains a relatively high phosphorus concentration and weathers into fine-textured soils. The Haast chronosequence therefore provides an important additional example of soil development linked to long-term depletion of soil phosphorus under a perudic moisture regime.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2012, vol. 97, p. 50-62, nombre de pages : 13, Références bibliographiques : 50 ref.

Date :
2012

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena