The carbon dioxide fluxes at the open-top chambers experiment on the ombrotrophic bog (Mukhrino field station)

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The continuous measurement of CO2 fluxes at the open-top chamber experiment in the ombrotrophic peatland (located in the middle taiga zone, West Siberia, Russia) has been provided  during the warm season of 2022 (beginning of June to beginning of October).  The Reco, NEE and GPP were calculated for this period; abiotic factors related to CO2 emissions, such as PAR, air temperature, water table level and precipitation, were also measured. The monthly average values showed a negative NEE of -9.89 C g m-2 month-1 in July, a negative GPP of -34.19 C g m-2 month-1 in July, and a positive values Reco of 41.68 C g m-2 month-1 in August. In 2022, the studied peatland hollows were only a carbon stock in July, while in the remaining months they were a source of CO2, which could be caused by small precipitation amount.

The monthly average diurnal variations of CO2 fluxes showed similar behaviour for both the OTC plot and control plot fluxes, which may be explained by the similarity in vegetation cover.

About the authors

E. A. Zarov

Yugra State University, Khanty-Mansiysk, Russian Federation

Author for correspondence.
Russian Federation

A. Jacotot

Laboratoire ECOBIO, Physicien adjoint, Observatoire des Sciences de l’Univers de Rennes, Rennes, France


A. A. Kulik

Yugra State University, Khanty-Mansiysk, Russian Federation


S. S. Gogo

Laboratoire ECOBIO, Physicien adjoint, Observatoire des Sciences de l’Univers de Rennes, Rennes, France


E. D. Lapshina

Yugra State University, Khanty-Mansiysk, Russian Federation


E. A. Dyukarev

Yugra State University, Khanty-Mansiysk, Russian Federation;
Institute of Monitoring of Climatic and Ecological Systems, SB RAS, Tomsk, Russian Federation



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Copyright (c) 2023 Zarov E.A., Jacoto A., Kulik A.A., Gogo S.S., Lapshina E.D., Dyukarev E.A.

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