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Towards improving the assessment of rainforest carbon : complementary evidence from repeated diameter measurements and dated wood

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Abstract
We explore whether a growth-ring analysis can produce additional information about carbon budgets in tropical forests. Such forests are characterized by a high number of species and by trees that rarely have anatomically distinct annual growth rings, which hampers the application of dendrochronological tools in carbon balance assessments in the tropics. We use forest inventory data and archived annual diameter measurements from the Luki Biosphere Reserve in the southwestern margin of the Congo Basin forest massif. In addition, dated wood data are available from the same location thanks to tag nail traces that allow for the measurement of growth increments over a period of 66 years. We find that precise increment measurements based on dated wood are advisable for small subsets of many less abundant species and for functional species groups characterized by slow growth. The dated wood approach shows that many understory trees with non-periodical rings remain in a steady state for long periods of time. These results suggest a dated wood approach is advisable for studies of growth trajectories of individual trees that might be of importance for carbon assessments in degraded forests.
Keywords
Tree growth, Forest inventory, Dated wood, Functional groups, Tropical rainforest, Congo Basin, Carbon stocks and sequestration, MAYOMBE FOREST, TREE GROWTH, CLIMATE, UNDERSTORY, BIOMASS, PHENOLOGY, DYNAMICS, WORLDS, LIFE, TOOL

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MLA
Angoboy, Ilondea Bhely, et al. “Towards Improving the Assessment of Rainforest Carbon : Complementary Evidence from Repeated Diameter Measurements and Dated Wood.” DENDROCHRONOLOGIA, vol. 62, 2020, doi:10.1016/j.dendro.2020.125723.
APA
Angoboy, I. B., De Mil, T., Hubau, W., Van Acker, J., Van den Bulcke, J., Fayolle, A., … Ewango, C. (2020). Towards improving the assessment of rainforest carbon : complementary evidence from repeated diameter measurements and dated wood. DENDROCHRONOLOGIA, 62. https://doi.org/10.1016/j.dendro.2020.125723
Chicago author-date
Angoboy, Ilondea Bhely, Tom De Mil, Wannes Hubau, Joris Van Acker, Jan Van den Bulcke, Adeline Fayolle, Nils Bourland, Olivier Kapalay, Arthur Chantrain, and Corneille Ewango. 2020. “Towards Improving the Assessment of Rainforest Carbon : Complementary Evidence from Repeated Diameter Measurements and Dated Wood.” DENDROCHRONOLOGIA 62. https://doi.org/10.1016/j.dendro.2020.125723.
Chicago author-date (all authors)
Angoboy, Ilondea Bhely, Tom De Mil, Wannes Hubau, Joris Van Acker, Jan Van den Bulcke, Adeline Fayolle, Nils Bourland, Olivier Kapalay, Arthur Chantrain, and Corneille Ewango. 2020. “Towards Improving the Assessment of Rainforest Carbon : Complementary Evidence from Repeated Diameter Measurements and Dated Wood.” DENDROCHRONOLOGIA 62. doi:10.1016/j.dendro.2020.125723.
Vancouver
1.
Angoboy IB, De Mil T, Hubau W, Van Acker J, Van den Bulcke J, Fayolle A, et al. Towards improving the assessment of rainforest carbon : complementary evidence from repeated diameter measurements and dated wood. DENDROCHRONOLOGIA. 2020;62.
IEEE
[1]
I. B. Angoboy et al., “Towards improving the assessment of rainforest carbon : complementary evidence from repeated diameter measurements and dated wood,” DENDROCHRONOLOGIA, vol. 62, 2020.
@article{8675072,
  abstract     = {{We explore whether a growth-ring analysis can produce additional information about carbon budgets in tropical forests. Such forests are characterized by a high number of species and by trees that rarely have anatomically distinct annual growth rings, which hampers the application of dendrochronological tools in carbon balance assessments in the tropics. We use forest inventory data and archived annual diameter measurements from the Luki Biosphere Reserve in the southwestern margin of the Congo Basin forest massif. In addition, dated wood data are available from the same location thanks to tag nail traces that allow for the measurement of growth increments over a period of 66 years.

We find that precise increment measurements based on dated wood are advisable for small subsets of many less abundant species and for functional species groups characterized by slow growth. The dated wood approach shows that many understory trees with non-periodical rings remain in a steady state for long periods of time. These results suggest a dated wood approach is advisable for studies of growth trajectories of individual trees that might be of importance for carbon assessments in degraded forests.}},
  articleno    = {{125723}},
  author       = {{Angoboy, Ilondea Bhely and De Mil, Tom and Hubau, Wannes and Van Acker, Joris and Van den Bulcke, Jan and Fayolle, Adeline and Bourland, Nils and Kapalay, Olivier and Chantrain, Arthur and Ewango, Corneille}},
  issn         = {{1125-7865}},
  journal      = {{DENDROCHRONOLOGIA}},
  keywords     = {{Tree growth,Forest inventory,Dated wood,Functional groups,Tropical rainforest,Congo Basin,Carbon stocks and sequestration,MAYOMBE FOREST,TREE GROWTH,CLIMATE,UNDERSTORY,BIOMASS,PHENOLOGY,DYNAMICS,WORLDS,LIFE,TOOL}},
  language     = {{eng}},
  pages        = {{10}},
  title        = {{Towards improving the assessment of rainforest carbon : complementary evidence from repeated diameter measurements and dated wood}},
  url          = {{http://dx.doi.org/10.1016/j.dendro.2020.125723}},
  volume       = {{62}},
  year         = {{2020}},
}

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