A comparison of six methods for measuring soil-surface carbon dioxide fluxes
Article first published online: 21 SEP 2012
Copyright 1997 by the American Geophysical Union.
Journal of Geophysical Research: Atmospheres (1984–2012)
Volume 102, Issue D24, pages 28771–28777, 26 December 1997
How to Cite
1997), A comparison of six methods for measuring soil-surface carbon dioxide fluxes, J. Geophys. Res., 102(D24), 28771–28777, doi:10.1029/97JD01440., , , , , , , and (
- Issue published online: 21 SEP 2012
- Article first published online: 21 SEP 2012
- Manuscript Accepted: 12 MAY 1997
- Manuscript Received: 17 MAY 1996
Measurements of soil-surface CO2 fluxes are important for characterizing the carbon budget of boreal forests because these fluxes can be the second largest component of the budget. Several methods for measuring soil-surface CO2 fluxes are available: (1) closed-dynamic-chamber systems, (2) closed-static-chamber systems, (3) open-chamber systems, and (4) eddy covariance systems. This paper presents a field comparison of six individual systems for measuring soil-surface CO2 fluxes with each of the four basic system types represented. A single system is used as a reference and compared to each of the other systems individually in black spruce (Picea mariana), jack pine (Pinus banksiana), or aspen (Populus tremuloides) forests. Fluxes vary from 1 to 10 μmol CO2 m−2 s−1. Adjustment factors to bring all of the systems into agreement vary from 0.93 to 1.45 with an uncertainty of about 10–15%.