Transformation of an Oligotrophic Sphagnum Bog during the Process of Rewetting

Tamara Ponomareva, Svetlana Selyanina, Anastasia Shtang, Ivan Zubov and Olga Yarygina
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Tamara Ponomareva: N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 23 Severnaya Dvina Emb., 163000 Arkhangelsk, Russia
Svetlana Selyanina: N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 23 Severnaya Dvina Emb., 163000 Arkhangelsk, Russia
Anastasia Shtang: N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 23 Severnaya Dvina Emb., 163000 Arkhangelsk, Russia
Ivan Zubov: N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 23 Severnaya Dvina Emb., 163000 Arkhangelsk, Russia
Olga Yarygina: N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 23 Severnaya Dvina Emb., 163000 Arkhangelsk, Russia

Land, 2021, vol. 10, issue 7, 1-20

Abstract: The vast peatlands of the European North of Russia were drained in the 20th century. Some of the drained areas were left without management and maintenance, which led to re-waterlogging. The current trend towards peatlands restoration requires an understanding of all the changes that have taken place in such ecosystems. The study aims to assess the changes in vegetation cover relative to changes in peat deposits in the rewetted oligotrophic bogs. The objects of research were located on the south-White Sea oligotrophic bogs. The studies were carried out using generally accepted geobotanical and geoecological methods in conjunction with the authors’ method for studying the group chemical composition of peat organic matter. The species diversity, structure and spatial distribution of the vegetation cover, the structure and composition of the peat, as well as the composition of the peat organic matter have been studied. It was shown that the transformation of an oligotrophic bog during the process of rewetting manifests itself in a significant change in the vegetation species diversity, somewhat reversible concerning ecologically tolerant species. Changes occurring in the peat deposit are irreversible. That limits the possibility of restoration of species of oligotrophic habitats to the initial state.

Keywords: bog vegetation; physico-chemical characteristics of peat; structure of the vegetation; species diversity; oligotrophic peat (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2021
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