From tree to plot: investigating stem CO2 efflux and its drivers along a logging gradient in Sabah, Malaysian Borneo

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F24%3A100412" target="_blank" >RIV/60460709:41320/24:100412 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/nph.20043" target="_blank" >http://dx.doi.org/10.1111/nph.20043</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/nph.20043" target="_blank" >10.1111/nph.20043</a>

Jazyk výsledku

angličtina

Název v původním jazyce

From tree to plot: investigating stem CO2 efflux and its drivers along a logging gradient in Sabah, Malaysian Borneo

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

From tree to plot: investigating stem CO2 efflux and its drivers along a logging gradient in Sabah, Malaysian Borneo

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40100 - Agriculture, Forestry, and Fisheries

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

New Phytologist

ISSN

0028-646X

e-ISSN

0028-646X

Svazek periodika

244

Číslo periodika v rámci svazku

1.0

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

91-103

Kód UT WoS článku

001292079500001

EID výsledku v databázi Scopus

2-s2.0-85201285974