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Forests 2017, 8(4), 114; doi:10.3390/f8040114

Estimating Carbon Dynamics in an Intact Lowland Mixed Dipterocarp Forest Using a Forest Carbon Model

1
Department of Environmental Science and Ecological Engineering, Graduate School, Korea University, Seoul 02841, Korea
2
Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei
3
Ecosystems Services and Management, International Institute for Applied Systems Analysis (IIASA), Laxenburg A-2361, Austria
4
Department of Biological and Environmental Sciences, Qatar University, Doha 2713, Qatar
*
Author to whom correspondence should be addressed.
Academic Editor: Philip J. Polglase
Received: 27 January 2017 / Revised: 29 March 2017 / Accepted: 6 April 2017 / Published: 8 April 2017
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Abstract

Intact dipterocarp forests in Asia act as crucial carbon (C) reservoirs, and it is therefore important to investigate the C dynamics in these forests. We estimated C dynamics, together with net ecosystem production (NEP), in an intact tropical dipterocarp forest of Brunei Darussalam. Fifty-four simulation units (plots; 20 m × 20 m) were established and initial C stocks were determined via direct field measurement. The C dynamics were annually simulated with a regression model and the Forest Biomass and Dead organic matter Carbon (FBDC) model. The initial C stock (Mg C·ha−1) of biomass, litter, dead wood and mineral soil were 213.1 ± 104.8, 2.0 ± 0.8, 31.3 ± 38.8, and 80.7 ± 15.5, respectively. Their annual changes (Mg C·ha−1·year−1) were 3.2 ± 1.1, 0.2 ± 0.2, −3.7 ± 6.1, and −0.3 ± 1.1, respectively. NEP was −0.6 ± 6.1 Mg C·ha−1·year−1, showing large heterogeneity among the plots. The initial C stocks of biomass and dead wood, biomass turnover rates and dead wood decay rates were elucidated as dominant factors determining NEP in a sensitivity analysis. Accordingly, investigation on those input data can constrain an uncertainty in determining NEP in the intact tropical forests. View Full-Text
Keywords: carbon dynamics; net ecosystem production; forest carbon model; intact dipterocarp forest carbon dynamics; net ecosystem production; forest carbon model; intact dipterocarp forest
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MDPI and ACS Style

Lee, J.; Lee, S.; Han, S.H.; Kim, S.; Roh, Y.; Salim, K.A.; Pietsch, S.A.; Son, Y. Estimating Carbon Dynamics in an Intact Lowland Mixed Dipterocarp Forest Using a Forest Carbon Model. Forests 2017, 8, 114.

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