@article{iiasa14539, volume = {8}, number = {4}, title = {Estimating Carbon Dynamics in an Intact Lowland Mixed Dipterocarp Forest Using a Forest Carbon Model}, publisher = {MDPI AG}, journal = {Forests}, doi = {10.3390/f8040114}, pages = {114--114}, year = {2017}, keywords = {carbon dynamics; net ecosystem production; forest carbon model; intact dipterocarp forest}, url = {https://pure.iiasa.ac.at/id/eprint/14539/}, issn = {1999-4907}, 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 {$\times$} 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 {$\pm$} 104.8, 2.0 {$\pm$} 0.8, 31.3 {$\pm$} 38.8, and 80.7 {$\pm$} 15.5, respectively. Their annual changes (Mg C?ha?1?year?1) were 3.2 {$\pm$} 1.1, 0.2 {$\pm$} 0.2, ?3.7 {$\pm$} 6.1, and ?0.3 {$\pm$} 1.1, respectively. NEP was ?0.6 {$\pm$} 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.}, author = {Lee, J. and Lee, S. and Han, S. H. and Kim, S. and Roh, Y. and Salim, K. A. and Pietsch, S. A. and Son, Y.} }