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https://hdl.handle.net/1959.11/62625
Title: | From tree to plot: investigating stem CO2 efflux and its drivers along a logging gradient in Sabah, Malaysian Borneo |
Contributor(s): | Mills, Maria B (author); Both, Sabine (author) ; Jotan, Palasiah (author); Huaraca Huasco, Walter (author); Cruz, Rudi (author); Pillco, Milenka M (author); Burslem, David F R P (author); Maycock, Colin (author); Malhi, Yadvinder (author); Ewers, Robert M (author); Berrio, Juan Carlos (author); Kaduk, Jörg (author); Page, Susan (author); Robert, Rolando (author); Teh, Yit A (author); Riutta, Terhi (author) |
Publication Date: | 2024 |
Open Access: | Yes |
DOI: | 10.1111/nph.20043 |
Handle Link: | https://hdl.handle.net/1959.11/62625 |
Abstract: | - Stem respiration constitutes a substantial proportion of autotrophic respiration in forested ecosystems, but its drivers across different spatial scales and land-use gradients remain poorly understood. This study quantifies and examines the impact of logging disturbance on stem CO2 efflux (EA) in Malaysian Borneo.
- EA was quantified at tree- and stand-level in nine 1-ha plots over a logging gradient from heavily logged to old-growth using the static chamber method.
- Tree-level results showed higher EA per unit stem area in logged vs old-growth plots (37.0 ± 1.1 vs 26.92 ± 1.14 g C m−2 month−1). However, at stand-level, there was no difference in EA between logged and old-growth plots (6.7 ± 1.1 vs 6.0 ± 0.7 Mg C ha−1 yr−1) due to greater stem surface area in old-growth plots. Allocation to growth respiration and carbon use efficiency was significantly higher in logged plots. Variation in EA at both tree- and stand-level was driven by tree size, growth and differences in investment strategies between the forest types.
- These results reflect different resource allocation strategies and priorities, with a priority for growth in response to increased light availability in logged plots, while old-growth plots prioritise maintenance and cell structure.
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Publication Type: | Journal Article |
Source of Publication: | New Phytologist, v.244, p. 91-103 |
Publisher: | Wiley-Blackwell Publishing Ltd |
Place of Publication: | United Kingdom |
ISSN: | 1469-8137 0028-646X |
Fields of Research (FoR) 2020: | 3103 Ecology |
Peer Reviewed: | Yes |
HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
Appears in Collections: | Journal Article School of Environmental and Rural Science
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