RA3 THESIS: Effect of kauri dieback on soil ...

Effect of kauri dieback on soil characteristics and decomposition in kauri dominated forest

September 2022

Yang S. 2022. Effect of kauri dieback on soil characteristics and decomposition in kauri dominated forest. A thesis submitted in fulfilment of the requirements for the degree of Master of Environmental Science, University of Auckland. 113 p.

ABSTRACT

Kauri dieback is a disease caused by an oomycete called Phytophthora agathidicida, a soil-borne pathogen that infects kauri roots. Kauri dieback results in yellowing of leaves, thinning of the canopy, dieback and mortality.

This study investigated (1) soil characteristics and decomposition rates in kauri dominated forests affected by Phytophthora agathidicida, (2) the difference in soil characteristics and decomposition between kauri and non kauri trees, (3) the relationships between soil characteristics and decomposition.