Initial Assessment of Multi-Scale Measures of CO2and H2O Flux in the Siberian Taiga

Initial Assessment of Multi-Scale Measures of CO2and H2O Flux in the Siberian Taiga

We measured CO2and H2O fluxes between undisturbed Larix gmelinii forest and the atmosphere at a remote Eastern Siberian site in July 1993. Scaled-up leaf-level porometer measurements agreed with those derived from the eddy correlation technique for the canopy fluxes of CO2and H2O Patch-scale measure...

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Bibliographic Details
Published in:Journal of biogeography Vol. 22; no. 2/3; pp. 425 - 431
Main Authors: Hollinger, D. Y., Kelliher, F. M., E. -D. Schulze, Vygodskaya, N. N., Varlagin, A., Milukova, I., Byers, J. N., Sogachov, A., Hunt, J. E., McSeveny, T. M., Kobak, K. I., Bauer, G., Arneth, A.
Format: Journal Article
Language:English
Published: Blackwell Scientific Publications 01-03-1995
Subjects:
Aircraft
Biogeography
Boreal forests
Carbon dioxide
Ecosystem Physiology
Forest canopy
Forest ecology
Forest ecosystems
Forest hydrology
Forest regeneration
Taigas
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Summary:We measured CO2and H2O fluxes between undisturbed Larix gmelinii forest and the atmosphere at a remote Eastern Siberian site in July 1993. Scaled-up leaf-level porometer measurements agreed with those derived from the eddy correlation technique for the canopy fluxes of CO2and H2O Patch-scale measurements of ecosystem CO2exchange agreed in turn with regional CO2exchange rates derived from aircraft measurements made throughout the convective boundary layer. At all scales, midsummer CO2fluxes for this vast, dry boreal forest were low, with maximum C uptake rates of only about 5 μ mol m-2 s-1.
ISSN:0305-0270
1365-2699