Staff View: Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests

Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests

Tropical forests play a major role in the carbon cycle of the terrestrial biosphere. Recent field studies have provided detailed descriptions of the carbon cycle of mature tropical forests, but logged or secondary forests have received much less attention. Here we report the first measures of total...

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Main Authors:	Terhi Ruitta, Lip Khoon Kho, Walter Huaraca Huasco, Sylvester Tan, Glen Reynolds, David F R P Burslem, Charles Santhanaraju Vairappan, Robert M Ewers, Yadvinder Malhi, Toby Richard Marthews, MinSheng Khoo, Edgar Clive Turner, Sabine Both, Yit Arn Teh, Noreen Majalap
Format:	Article
Language:	English English
Published:	Wiley-Blackwell Pub 2018
Subjects:	Q Science (General) QH301-705.5 Biology (General)
Online Access:	https://eprints.ums.edu.my/id/eprint/25503/1/Logging%20disturbance%20shifts%20net%20primary%20productivity%20and%20its%20allocation%20in%20Bornean%20tropical%20forests.pdf https://eprints.ums.edu.my/id/eprint/25503/2/Logging%20disturbance%20shifts%20net%20primary%20productivity%20and%20its%20allocation%20in%20Bornean%20tropical%20forests%201.pdf https://eprints.ums.edu.my/id/eprint/25503/ https://doi.org/10.17863/CAM.21604
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spelling	my.ums.eprints.255032020-06-19T00:12:22Z https://eprints.ums.edu.my/id/eprint/25503/ Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests Terhi Ruitta Lip Khoon Kho Walter Huaraca Huasco Sylvester Tan Glen Reynolds David F R P Burslem Charles Santhanaraju Vairappan Robert M Ewers Yadvinder Malhi Toby Richard Marthews MinSheng Khoo Edgar Clive Turner Sabine Both Yit Arn Teh Noreen Majalap Q Science (General) QH301-705.5 Biology (General) Tropical forests play a major role in the carbon cycle of the terrestrial biosphere. Recent field studies have provided detailed descriptions of the carbon cycle of mature tropical forests, but logged or secondary forests have received much less attention. Here we report the first measures of total net primary productivity (NPP) and its allocation along a disturbance gradient from old-growth forests to moderately and heavily logged forests in Malaysian Borneo. We measured the main NPP components (woody, fine root and canopy NPP) in old-growth (n=6) and logged (n=5) 1 ha forest plots. Overall, the total NPP did not differ between old-growth and logged forest (13.5 ± 0.5 and 15.7 ± 1.5 Mg C ha-1 year-1, respectively). However, logged forests allocated significantly higher fraction into woody NPP at the expense of the canopy NPP (42% and 48% into woody and canopy NPP, respectively, in old-growth forest vs. 66% and 23% in logged forest). When controlling for local stand structure, NPP in logged forest stands was 41% higher, and woody NPP was 150% higher than in old-growth stands with similar basal area, but this was offset by structure effects (higher gap frequency and absence of large trees in logged forest). This pattern was not driven by species turnover: the average woody NPP of all species groups within logged forest (pioneers, non-pioneers, species unique to logged plots and species shared with old-growth plots) was similar. Hence, below a threshold of very heavy disturbance, logged forests can exhibit higher NPP and higher allocation to wood; such shifts in carbon cycling persist for decades after the logging event. Given that the majority of tropical forest biome has experienced some degree of logging, our results demonstrate that logging can cause substantial shifts in carbon production and allocation in tropical forests. Wiley-Blackwell Pub 2018 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/25503/1/Logging%20disturbance%20shifts%20net%20primary%20productivity%20and%20its%20allocation%20in%20Bornean%20tropical%20forests.pdf text en https://eprints.ums.edu.my/id/eprint/25503/2/Logging%20disturbance%20shifts%20net%20primary%20productivity%20and%20its%20allocation%20in%20Bornean%20tropical%20forests%201.pdf Terhi Ruitta and Lip Khoon Kho and Walter Huaraca Huasco and Sylvester Tan and Glen Reynolds and David F R P Burslem and Charles Santhanaraju Vairappan and Robert M Ewers and Yadvinder Malhi and Toby Richard Marthews and MinSheng Khoo and Edgar Clive Turner and Sabine Both and Yit Arn Teh and Noreen Majalap (2018) Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests. Global Change Biology. pp. 1-16. ISSN 1354-1013 https://doi.org/10.17863/CAM.21604
institution	Universiti Malaysia Sabah
building	UMS Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sabah
content_source	UMS Institutional Repository
url_provider	http://eprints.ums.edu.my/
language	English English
topic	Q Science (General) QH301-705.5 Biology (General)
spellingShingle	Q Science (General) QH301-705.5 Biology (General) Terhi Ruitta Lip Khoon Kho Walter Huaraca Huasco Sylvester Tan Glen Reynolds David F R P Burslem Charles Santhanaraju Vairappan Robert M Ewers Yadvinder Malhi Toby Richard Marthews MinSheng Khoo Edgar Clive Turner Sabine Both Yit Arn Teh Noreen Majalap Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests
description	Tropical forests play a major role in the carbon cycle of the terrestrial biosphere. Recent field studies have provided detailed descriptions of the carbon cycle of mature tropical forests, but logged or secondary forests have received much less attention. Here we report the first measures of total net primary productivity (NPP) and its allocation along a disturbance gradient from old-growth forests to moderately and heavily logged forests in Malaysian Borneo. We measured the main NPP components (woody, fine root and canopy NPP) in old-growth (n=6) and logged (n=5) 1 ha forest plots. Overall, the total NPP did not differ between old-growth and logged forest (13.5 ± 0.5 and 15.7 ± 1.5 Mg C ha-1 year-1, respectively). However, logged forests allocated significantly higher fraction into woody NPP at the expense of the canopy NPP (42% and 48% into woody and canopy NPP, respectively, in old-growth forest vs. 66% and 23% in logged forest). When controlling for local stand structure, NPP in logged forest stands was 41% higher, and woody NPP was 150% higher than in old-growth stands with similar basal area, but this was offset by structure effects (higher gap frequency and absence of large trees in logged forest). This pattern was not driven by species turnover: the average woody NPP of all species groups within logged forest (pioneers, non-pioneers, species unique to logged plots and species shared with old-growth plots) was similar. Hence, below a threshold of very heavy disturbance, logged forests can exhibit higher NPP and higher allocation to wood; such shifts in carbon cycling persist for decades after the logging event. Given that the majority of tropical forest biome has experienced some degree of logging, our results demonstrate that logging can cause substantial shifts in carbon production and allocation in tropical forests.
format	Article
author	Terhi Ruitta Lip Khoon Kho Walter Huaraca Huasco Sylvester Tan Glen Reynolds David F R P Burslem Charles Santhanaraju Vairappan Robert M Ewers Yadvinder Malhi Toby Richard Marthews MinSheng Khoo Edgar Clive Turner Sabine Both Yit Arn Teh Noreen Majalap
author_facet	Terhi Ruitta Lip Khoon Kho Walter Huaraca Huasco Sylvester Tan Glen Reynolds David F R P Burslem Charles Santhanaraju Vairappan Robert M Ewers Yadvinder Malhi Toby Richard Marthews MinSheng Khoo Edgar Clive Turner Sabine Both Yit Arn Teh Noreen Majalap
author_sort	Terhi Ruitta
title	Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests
title_short	Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests
title_full	Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests
title_fullStr	Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests
title_full_unstemmed	Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests
title_sort	logging disturbance shifts net primary productivity and its allocation in bornean tropical forests
publisher	Wiley-Blackwell Pub
publishDate	2018
url	https://eprints.ums.edu.my/id/eprint/25503/1/Logging%20disturbance%20shifts%20net%20primary%20productivity%20and%20its%20allocation%20in%20Bornean%20tropical%20forests.pdf https://eprints.ums.edu.my/id/eprint/25503/2/Logging%20disturbance%20shifts%20net%20primary%20productivity%20and%20its%20allocation%20in%20Bornean%20tropical%20forests%201.pdf https://eprints.ums.edu.my/id/eprint/25503/ https://doi.org/10.17863/CAM.21604
_version_	1760230376664465408
score	13.211869

Logging disturbance shifts net primary productivity and its allocation in Bornean tropical forests

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