Comparison of measured and modelled growth on permanent plots in Sabahs rain forests
Authored by A Huth, P Kohler, T Ditzer, RC Ong
Date Published: 2001
DOI: 10.1016/s0378-1127(00)00364-9
Sponsors:
German Research Foundation (Deutsche Forschungsgemeinschaft, DFG)
Platforms:
No platforms listed
Model Documentation:
Other Narrative
Mathematical description
Model Code URLs:
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Abstract
In this paper previously unpublished field data from 25 ha of permanent
sampling plots (PSPs) in Sabah, Malaysia, in four different forest
reserves are analysed for mortality rates and basal area development.
Field data of an observation length of 9 to 20 years were available.
These data then form the basis of several benchmark tests for the
evaluation of the individual-oriented tropical rain forest growth model
FORMIND. A new version of the FORMIND is presented. The model in its
version FORMIND1.1 includes enhanced submodels for mortality and tree
growth. The model evaluation is focused on the model components for tree
growth, competition and mortality. Data for tree recruitment were not
available. Results show a good agreement between simulation and field
data for the main output variables basal area and stem number indicating
a reasonable behaviour of the model components we focused on.
Furthermore the results show that differences in site conditions
influence tree growth and mortality. Site characteristics should be
included in the model in the future. (C) 2001 Elsevier Science B.V. All
rights reserved.
Tags
Individual-based model
ecology
Mortality
patterns
Rates
Simulation-model
Population-dynamics
Tropical forest
Tree populations