Intermediate time scale response of atmospheric CO2 following prescribed fire in a longleaf pine forest
Abstract
Abstract Fire plays an essential role in maintaining the structure and function of longleaf pine ecosystems. While the effects of fire on carbon cycle have been measured in previous studies for short periods during a burn and for multiyear periods following the burn, information on how carbon cycle is influenced by such changes over the span of a few weeks to months has yet to be quantified. We have analyzed high‐frequency measurements of CO 2 concentration and flux, as well as associated micrometeorological variables, at three levels of the tall Aiken AmeriFlux tower during and after a prescribed burn. Measurements of the CO 2 concentration and vertical fluxes were examined as well as calculated net ecosystem exchange (NEE) for periods prior to and after the burn. Large spikes in both CO 2 concentration and CO 2 flux during the fire and increases in atmospheric CO 2 concentration and reduced CO 2 flux were observed for several weeks following the burn, particularly below the forest canopy. Both CO 2 measurements and NEE were found to return to their preburn states within 60–90 days following the burn when no statistical significance was found between preburn and postburn NEE. This study examines the micrometeorologicalmore »
- Authors:
-
- Savannah River National Lab., Aiken, SC (United States)
- United States Forest Service-Savannah River, New Ellenton, SC (United States)
- Univ. of Georgia, Griffin, GA (United States)
- Univ. of Alabama, Tuscaloosa, AL (United States)
- Savannah River National Lab., Aiken, SC (United States); Univ. of Georgia, Athens, GA (United States)
- Publication Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1368681
- Alternate Identifier(s):
- OSTI ID: 1402139
- Report Number(s):
- SRNS-STI-2016-00614
Journal ID: ISSN 2169-8953
- Grant/Contract Number:
- AC09-08SR22470; DE‐AC09‐08SR22470
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of Geophysical Research. Biogeosciences
- Additional Journal Information:
- Journal Volume: 121; Journal Issue: 10; Journal ID: ISSN 2169-8953
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; prescribed fire; carbon cycle; AmeriFlux
Citation Formats
Viner, Brian, Parker, M., Maze, G., Varnedoe, P., Leclerc, M., Starr, G., Aubrey, D., Zhang, G., and Duarte, H. Intermediate time scale response of atmospheric CO2 following prescribed fire in a longleaf pine forest. United States: N. p., 2016.
Web. doi:10.1002/2016JG003351.
Viner, Brian, Parker, M., Maze, G., Varnedoe, P., Leclerc, M., Starr, G., Aubrey, D., Zhang, G., & Duarte, H. Intermediate time scale response of atmospheric CO2 following prescribed fire in a longleaf pine forest. United States. https://doi.org/10.1002/2016JG003351
Viner, Brian, Parker, M., Maze, G., Varnedoe, P., Leclerc, M., Starr, G., Aubrey, D., Zhang, G., and Duarte, H. 2016.
"Intermediate time scale response of atmospheric CO2 following prescribed fire in a longleaf pine forest". United States. https://doi.org/10.1002/2016JG003351. https://www.osti.gov/servlets/purl/1368681.
@article{osti_1368681,
title = {Intermediate time scale response of atmospheric CO2 following prescribed fire in a longleaf pine forest},
author = {Viner, Brian and Parker, M. and Maze, G. and Varnedoe, P. and Leclerc, M. and Starr, G. and Aubrey, D. and Zhang, G. and Duarte, H.},
abstractNote = {Abstract Fire plays an essential role in maintaining the structure and function of longleaf pine ecosystems. While the effects of fire on carbon cycle have been measured in previous studies for short periods during a burn and for multiyear periods following the burn, information on how carbon cycle is influenced by such changes over the span of a few weeks to months has yet to be quantified. We have analyzed high‐frequency measurements of CO 2 concentration and flux, as well as associated micrometeorological variables, at three levels of the tall Aiken AmeriFlux tower during and after a prescribed burn. Measurements of the CO 2 concentration and vertical fluxes were examined as well as calculated net ecosystem exchange (NEE) for periods prior to and after the burn. Large spikes in both CO 2 concentration and CO 2 flux during the fire and increases in atmospheric CO 2 concentration and reduced CO 2 flux were observed for several weeks following the burn, particularly below the forest canopy. Both CO 2 measurements and NEE were found to return to their preburn states within 60–90 days following the burn when no statistical significance was found between preburn and postburn NEE. This study examines the micrometeorological conditions during a low‐intensity prescribed burn and its short‐term effects on local CO 2 dynamics in a forested environment by identifying observable impacts on local measurements of atmospheric CO 2 concentration and fluxes.},
doi = {10.1002/2016JG003351},
url = {https://www.osti.gov/biblio/1368681},
journal = {Journal of Geophysical Research. Biogeosciences},
issn = {2169-8953},
number = 10,
volume = 121,
place = {United States},
year = {Wed Oct 12 00:00:00 EDT 2016},
month = {Wed Oct 12 00:00:00 EDT 2016}
}
Web of Science
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