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, Yo Whan Son

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish
Article number114
JournalForests
Volume8
Issue number4
DOIs
Publication statusPublished - 2017 Apr 8

Keywords

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

ASJC Scopus subject areas

  • Forestry

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    Lee, J., Lee, S., Han, S. H., Kim, S., Roh, Y., Salim, K. A., Pietsch, S. A., & Son, Y. W. (2017). Estimating carbon dynamics in an intact lowland mixed dipterocarp forest using a forest carbon model. Forests, 8(4), [114]. https://doi.org/10.3390/f8040114