Carbon Dioxide Balance in a Medium-Age Bilberry Pine Forest

L. K. Kaibiyainen, E. E. Yalynskaya, and G. I. Sofronova

Institute of Forests, Karelian Research Center, Russian Academy of Sciences,
Pushkinskaya ul. 11, Petrozavodsk, 185610 Karelia, Russia

Received November 4, 1998

Abstract—Direct measurements of gas exchange were used to quantitatively characterize the parameters of
carbon dioxide balance in a bilberry pine forest with sufficient moisture supply. During the growing season, the
phytocenosis under study was shown to accumulate 7.568 t CO₂ , or 2.044 t C, per hectare. Percent ratios of the
components of carbon dioxide balance to the annual photosynthetic carbon fixation were determined. For com-
parison, carbon balance was calculated from expert estimations of biomass increment in the phytocenosis.

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