Biogenic fluxes of carbon dioxide in the old-growth spruce forest in the middle taiga: Results of eddy covariance measurements

Fluxes of carbon dioxide in the old-growth bilberry spruce forest in the European Taiga are measured by the eddy covariance technique. A carbon dioxide sink to the ecosystem was observed from April until September; the maximum net-exchange rate of carbon dioxide was recorded in July. During the cold...

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Bibliographic Details
Published in:Contemporary problems of ecology 2016-12, Vol.9 (7), p.873-883
Main Authors: Zagirova, S. V., Mikhailov, O. A.
Format: Article
Language:English
Subjects:
Atmosphere
Biomedical and Life Sciences
Carbon dioxide
Ecology
Forests
Life Sciences
Photosynthesis
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Summary:Fluxes of carbon dioxide in the old-growth bilberry spruce forest in the European Taiga are measured by the eddy covariance technique. A carbon dioxide sink to the ecosystem was observed from April until September; the maximum net-exchange rate of carbon dioxide was recorded in July. During the cold period of the year from October to March, the biogenic flux of CO 2 was directed from the forest canopy to the atmosphere. According to measurements at u * > 0.2, the total annual NEE was 219 g C m –2 ; the annual values of the ecosystem respiration R eco and the gross photosynthesis P gross were 483 and 966 g C m –2 , respectively. The conclusion is that the old-growth bilberry spruce forest in the middle taiga subzone was the sink of carbon from the atmosphere during the year of observation.
ISSN:1995-4255
1995-4263
DOI:10.1134/S1995425516070106