TREE ASSOCIATION WITH POMETIA AND ITS STRUCTURE IN LOGGING CONCESSION OF SOUTH PAPUA FOREST
ABSTRACT: Part of forests in
Papua is still as logging concession.
Pometia is one of target species, but there is still a lack of
information regarding the ecological condition of this species. Thus, the objectives of this research were to
describe what tree species (small and large individuals) associated with
Pometia, how logging and soil properties influence the association and to
analyze the structure of Pometia in term of diameter distribution. Canonical correspondence analysis (CCA) was
applied to describe the association and its relationship with environmental
factors (soil and litterfall). The
results showed that association of small and large individuals of trees with
both Pometia showed a different pattern in which the small individuals had a
positive association and had certain tree species as a community. This
association resulted from logging activity leading to the change in ecological
conditions. Conversely, the association
between large tree species with Pometia acuminata Radlk. and Pometia pinnata J.
R. Forst. & G.Forst. showed negative pattern and tree species correlated with
both Pometia were different. Of
environmental factors, only C content of litterfall had a positive correlation
with large Pometia acuminata and its
community. Furthermore, the small
individuals of Pometia were dynamic as a response to logging in which a number
of the small individuals of Pometia tended to increase after logging.
KEYWORDS: tropical rainforest;
logged forest; canonical correspondence analysis; tree species
Author: Agustinus Murdjoko,
Djoko Marsono, Ronggo Sadono, Suwarno Hadisusanto
Journal Code: jpkehutanangg160020
