Academic Bibliography

 Search 200 years of publications by Ghent University researchers.
Advanced search
1 file | 4.02 MB
Add to list
  1. Search results
  2. Elevated CO2 alters the temperature s...

Elevated CO2 alters the temperature sensitivity of stem CO2 efflux in a mature eucalypt woodland

Nam Jin Noh, Kristine Crous (UGent) , Roberto Luis Salomon Moreno (UGent) , Jinquan Li, David S. Ellsworth, Craig V. M. Barton, Elise Pendall and Mark G. Tjoelker
(2021) ENVIRONMENTAL AND EXPERIMENTAL BOTANY. 188.
Author
Organization
Abstract
The CO2 efflux from tree stem surfaces to atmosphere (R-S) is an important component in the carbon (C) balance of forest ecosystems. Rising atmospheric carbon dioxide concentrations [CO2] are expected to stimulate R-S, because of greater C assimilation and carbohydrate supply to stems under rising [CO2]. Growth respiration (R-g) and maintenance respiration (R-m) during the warm growing season may respond differently to rising [CO2] due to different metabolic demands. To test the effect of elevated [CO2] (eCO(2), ambient +150 ppm) on R-S, we examined R-S in mature Eucalyptus trees on a monthly basis for an entire year during the seventh year of exposure to eCO(2). R-S varied seasonally and mirrored seasonal variation in temperature. While R-S was not significantly increased under eCO(2) compared to ambient CO2 (aCO(2)), its temperature sensitivity was significantly decreased (Q(10) of 1.92 for aCO(2) and 1.56 for eCO(2)). The estimated annual R-g accounted for approximately 7-8% of annual total R-S, 419 +/- 103 g C m(-2) yr(-1), indicating that R-m contributes substantially to total R-S in this mature woodland. Monthly mean R-S was correlated with monthly mean soil temperature, soil moisture and monthly stem growth rate in this dry year, but soil moisture levels may have been insufficient to observe the impacts of eCO(2) on stem growth in this droughted and phosphorous limited site. Our results highlight that eCO(2) tends to increase R-m at low temperatures during the non-growing season, thus decreasing the temperature sensitivity of R-S, despite a neutral effect of eCO(2) on R-S rates on a yearly basis.
Keywords
GROSS PRIMARY PRODUCTION, NORWAY SPRUCE, FOREST PRODUCTIVITY, PLANT, RESPIRATION, TREES, RESPONSES, GROWTH, PINE, DROUGHT, CARBON, CO2 enrichment, Eucalyptus tereticornis, EucFACE, Respiration, Stem, growth, Soil moisture

Downloads

  • Download
    (...).pdf
    • full text (Published version)
    • |
    • UGent only
    • |
    • PDF
    • |
    • 4.02 MB

Citation

Please use this url to cite or link to this publication:

MLA
Noh, Nam Jin, et al. “Elevated CO2 Alters the Temperature Sensitivity of Stem CO2 Efflux in a Mature Eucalypt Woodland.” ENVIRONMENTAL AND EXPERIMENTAL BOTANY, vol. 188, 2021, doi:10.1016/j.envexpbot.2021.104508.
APA
Noh, N. J., Crous, K., Salomon Moreno, R. L., Li, J., Ellsworth, D. S., Barton, C. V. M., … Tjoelker, M. G. (2021). Elevated CO2 alters the temperature sensitivity of stem CO2 efflux in a mature eucalypt woodland. ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 188. https://doi.org/10.1016/j.envexpbot.2021.104508
Chicago author-date
Noh, Nam Jin, Kristine Crous, Roberto Luis Salomon Moreno, Jinquan Li, David S. Ellsworth, Craig V. M. Barton, Elise Pendall, and Mark G. Tjoelker. 2021. “Elevated CO2 Alters the Temperature Sensitivity of Stem CO2 Efflux in a Mature Eucalypt Woodland.” ENVIRONMENTAL AND EXPERIMENTAL BOTANY 188. https://doi.org/10.1016/j.envexpbot.2021.104508.
Chicago author-date (all authors)
Noh, Nam Jin, Kristine Crous, Roberto Luis Salomon Moreno, Jinquan Li, David S. Ellsworth, Craig V. M. Barton, Elise Pendall, and Mark G. Tjoelker. 2021. “Elevated CO2 Alters the Temperature Sensitivity of Stem CO2 Efflux in a Mature Eucalypt Woodland.” ENVIRONMENTAL AND EXPERIMENTAL BOTANY 188. doi:10.1016/j.envexpbot.2021.104508.
Vancouver
1.
Noh NJ, Crous K, Salomon Moreno RL, Li J, Ellsworth DS, Barton CVM, et al. Elevated CO2 alters the temperature sensitivity of stem CO2 efflux in a mature eucalypt woodland. ENVIRONMENTAL AND EXPERIMENTAL BOTANY. 2021;188.
IEEE
[1]
N. J. Noh et al., “Elevated CO2 alters the temperature sensitivity of stem CO2 efflux in a mature eucalypt woodland,” ENVIRONMENTAL AND EXPERIMENTAL BOTANY, vol. 188, 2021.
@article{8763668,
  abstract     = {{The CO2 efflux from tree stem surfaces to atmosphere (R-S) is an important component in the carbon (C) balance of forest ecosystems. Rising atmospheric carbon dioxide concentrations [CO2] are expected to stimulate R-S, because of greater C assimilation and carbohydrate supply to stems under rising [CO2]. Growth respiration (R-g) and maintenance respiration (R-m) during the warm growing season may respond differently to rising [CO2] due to different metabolic demands. To test the effect of elevated [CO2] (eCO(2), ambient +150 ppm) on R-S, we examined R-S in mature Eucalyptus trees on a monthly basis for an entire year during the seventh year of exposure to eCO(2). R-S varied seasonally and mirrored seasonal variation in temperature. While R-S was not significantly increased under eCO(2) compared to ambient CO2 (aCO(2)), its temperature sensitivity was significantly decreased (Q(10) of 1.92 for aCO(2) and 1.56 for eCO(2)). The estimated annual R-g accounted for approximately 7-8% of annual total R-S, 419 +/- 103 g C m(-2) yr(-1), indicating that R-m contributes substantially to total R-S in this mature woodland. Monthly mean R-S was correlated with monthly mean soil temperature, soil moisture and monthly stem growth rate in this dry year, but soil moisture levels may have been insufficient to observe the impacts of eCO(2) on stem growth in this droughted and phosphorous limited site. Our results highlight that eCO(2) tends to increase R-m at low temperatures during the non-growing season, thus decreasing the temperature sensitivity of R-S, despite a neutral effect of eCO(2) on R-S rates on a yearly basis.}},
  articleno    = {{104508}},
  author       = {{Noh, Nam Jin and Crous, Kristine and Salomon Moreno, Roberto Luis and Li, Jinquan and Ellsworth, David S. and Barton, Craig V. M. and Pendall, Elise and Tjoelker, Mark G.}},
  issn         = {{0098-8472}},
  journal      = {{ENVIRONMENTAL AND EXPERIMENTAL BOTANY}},
  keywords     = {{GROSS PRIMARY PRODUCTION,NORWAY SPRUCE,FOREST PRODUCTIVITY,PLANT,RESPIRATION,TREES,RESPONSES,GROWTH,PINE,DROUGHT,CARBON,CO2 enrichment,Eucalyptus tereticornis,EucFACE,Respiration,Stem,growth,Soil moisture}},
  language     = {{eng}},
  pages        = {{8}},
  title        = {{Elevated CO2 alters the temperature sensitivity of stem CO2 efflux in a mature eucalypt woodland}},
  url          = {{http://doi.org/10.1016/j.envexpbot.2021.104508}},
  volume       = {{188}},
  year         = {{2021}},
}
Altmetric
View in Altmetric
Web of Science
Times cited: