Use of 3-PG and 3-PGS to simulate forest growth dynamics of Australian tropical rainforests. I. Parameterisation and calibration for old-growth, regenerating and plantation forests

Nightingale, J. M., Hill, M. J., Phinn, S. R., Davies, I. D., Held, A. A. and Erskine, P. D. (2008) Use of 3-PG and 3-PGS to simulate forest growth dynamics of Australian tropical rainforests. I. Parameterisation and calibration for old-growth, regenerating and plantation forests. Forest Ecology and Management, 254 2: 107-121. doi:10.1016/j.foreco.2007.03.041


Author Nightingale, J. M.
Hill, M. J.
Phinn, S. R.
Davies, I. D.
Held, A. A.
Erskine, P. D.
Title Use of 3-PG and 3-PGS to simulate forest growth dynamics of Australian tropical rainforests. I. Parameterisation and calibration for old-growth, regenerating and plantation forests
Journal name Forest Ecology and Management   Check publisher's open access policy
ISSN 0378-1127
Publication date 2008-01-25
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.foreco.2007.03.041
Volume 254
Issue 2
Start page 107
End page 121
Total pages 14
Editor G. M. J. Mohren
R. F. Fisher
Place of publication Netherlands
Publisher Elsevier BV
Collection year 2008
Language eng
Subject 291003 Photogrammetry and Remote Sensing
C1
780102 Physical sciences
Abstract Accurate information concerning regional to ecosystem-scale carbon dynamics within tropical rainforests is important because of the increasing certainty that the global climate will change significantly within the next century. Tropical forests of north Queensland, Australia, are highly sensitive to climate change and substantial shifts in the distribution of these forests are likely to occur with minor variations in climate. The focus of this research was the development of a model-based system for assessing forest growth and biomass accumulation dynamics within Australia's tropical rainforest bioregion and predicting the impacts of climate change on these dynamics. This paper presents the parameterisation and calibration of (a) the 3-PG (Physiological Principles Predicting Growth) model to a selection of restored rainforest and commercial timber plantations and (b) a modified version 3-PGS which uses satellite data, enabling the spatial assessment of mature tropical rainforest growth and production throughout the wet tropics bioregion. Statistically significant relationships were observed between 3-PG and 3-PGS modelled and field measured estimates of stand structural attributes including, basal area (BA), diameter at breast height (DBH) and above-ground biomass (AGB) throughout the bioregion. 3-PG and 3-PGS modelled leaf area index (LAI) and net primary production (NPP) related well to published estimates at other similar rainforest sites. These results indicate that the simple, process-based models are effective at capturing the growth dynamics of structurally complex old-growth, restoration and plantation rainforests.
Keyword North Queensland tropical rainforest
Australia
Ecosystem models
Forest growth producivity modelling
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Mined Land Rehabilitation Publications
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