The Multiscale Monitoring of Peatland Ecosystem Carbon Cycling in the Middle Taiga Zone of Western Siberia: The Mukhrino Bog Case Study

Egor Dyukarev, Evgeny Zarov, Pavel Alekseychik, Jelmer Nijp, Nina Filippova, Ivan Mammarella, Ilya Filippov, Wladimir Bleuten, Vitaly Khoroshavin, Galina Ganasevich, Anastasiya Meshcheryakova, Timo Vesala and Elena Lapshina
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Egor Dyukarev: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Evgeny Zarov: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Pavel Alekseychik: Bioeconomy and Environment, Natural Resources Institute Finland, FI-00790 Helsinki, Finland
Jelmer Nijp: Ecohydrology Department, KWR Water Research Institute, 3430 BB Nieuwegein, The Netherlands
Nina Filippova: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Ivan Mammarella: Institute of Atmospheric and Earth System Research, Department of Physics, University of Helsinki, 00014 Helsinki, Finland
Ilya Filippov: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Wladimir Bleuten: Department of Physical Geography, Utrecht University, 3584 CB Utrecht, The Netherlands
Vitaly Khoroshavin: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Galina Ganasevich: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Anastasiya Meshcheryakova: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Timo Vesala: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia
Elena Lapshina: Laboratory of Ecosystem-Atmosphere Interactions of the Mire-Forest Landscapes, Yugra State University, 628012 Khanty-Mansiysk, Russia

Land, 2021, vol. 10, issue 8, 1-26

Abstract: The peatlands of the West Siberian Lowlands, comprising the largest pristine peatland area of the world, have not previously been covered by continuous measurement and monitoring programs. The response of peatlands to climate change occurs over several decades. This paper summarizes the results of peatland carbon balance studies collected over ten years at the Mukhrino field station (Mukhrino FS, MFS) operating in the Middle Taiga Zone of Western Siberia. A multiscale approach was applied for the investigations of peatland carbon cycling. Carbon dioxide fluxes at the local scale studied using the chamber method showed net accumulation with rates from 110, to 57.8 gC m −2 at the Sphagnum hollow site. Net CO 2 fluxes at the pine-dwarf shrubs- Sphagnum ridge varied from negative (−32.1 gC m −2 in 2019) to positive (13.4 gC m −2 in 2017). The cumulative May-August net ecosystem exchange (NEE) from eddy-covariance (EC) measurements at the ecosystem scale was −202 gC m −2 in 2015, due to the impact of photosynthesis of pine trees which was not registered by the chamber method. The net annual accumulation of carbon in the live part of mosses was estimated at 24–190 gC m −2 depending on the Sphagnum moss species. Long-term carbon accumulation rates obtained by radiocarbon analysis ranged from 28.5 to 57.2 gC m −2 yr −1 , with local extremes of up to 176.2 gC m −2 yr −1 . The obtained estimates of various carbon fluxes using EC and chamber methods, the accounting for Sphagnum growth and decomposition, and long-term peat accumulation provided information about the functioning of the peatland ecosystems at different spatial and temporal scales. Multiscale carbon flux monitoring reveals useful new information for forecasting the response of northern peatland carbon cycles to climatic changes.

Keywords: West Siberia; Mukhrino field station; bog; vegetation; greenhouse gases emission; bog functioning; climate change (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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