Estimating carbon dynamics in an intact lowland mixed dipterocarp forest using a forest carbon model

Jongyeol Lee, Sohye Lee, Seung Hyun Han, Seongjun Kim, Yujin Roh, Kamariah Abu Salim, Stephan A. Pietsch, Yowhan Son

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


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.

Original languageEnglish
Article number114
Issue number4
Publication statusPublished - 2017 Apr 8


  • Carbon dynamics
  • Forest carbon model
  • Intact dipterocarp forest
  • Net ecosystem production

ASJC Scopus subject areas

  • Forestry


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