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Recovery of fen peatland microbiomes and predicted functional profiles after rewetting

WJ. Emsens, R. van Diggelen, CJS. Aggenbach, T. Cajthaml, J. Frouz, A. Klimkowska, W. Kotowski, L. Kozub, Y. Liczner, E. Seeber, H. Silvennoinen, F. Tanneberger, J. Vicena, M. Wilk, E. Verbruggen,

. 2020 ; 14 (7) : 1701-1712. [pub] 20200403

Jazyk angličtina Země Velká Británie

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc20028054

Many of the world's peatlands have been affected by water table drawdown and subsequent loss of organic matter. Rewetting has been proposed as a measure to restore peatland functioning and to halt carbon loss, but its effectiveness is subject to debate. An important prerequisite for peatland recovery is a return of typical microbial communities, which drive key processes. To evaluate the effect of rewetting, we investigated 13 fen peatland areas across a wide (>1500 km) longitudinal gradient in Europe, in which we compared microbial communities between drained, undrained, and rewetted sites. There was a clear difference in microbial communities between drained and undrained fens, regardless of location. Community recovery upon rewetting was substantial in the majority of sites, and predictive functional profiling suggested a concomitant recovery of biogeochemical peatland functioning. However, communities in rewetted sites were only similar to those of undrained sites when soil organic matter quality (as expressed by cellulose fractions) and quantity were still sufficiently high. We estimate that a minimum organic matter content of ca. 70% is required to enable microbial recovery. We conclude that peatland recovery after rewetting is conditional on the level of drainage-induced degradation: severely altered physicochemical peat properties may preclude complete recovery for decades.

Citace poskytuje Crossref.org

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$a Emsens, Willem-Jan $u Ecosystem Management Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, 2610, Wilrijk, Belgium. willem-jan.emsens@uantwerpen.be. B-WARE Research Centre, Toernooiveld 1, 6525 ED, Nijmegen, The Netherlands. willem-jan.emsens@uantwerpen.be.
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$a Many of the world's peatlands have been affected by water table drawdown and subsequent loss of organic matter. Rewetting has been proposed as a measure to restore peatland functioning and to halt carbon loss, but its effectiveness is subject to debate. An important prerequisite for peatland recovery is a return of typical microbial communities, which drive key processes. To evaluate the effect of rewetting, we investigated 13 fen peatland areas across a wide (>1500 km) longitudinal gradient in Europe, in which we compared microbial communities between drained, undrained, and rewetted sites. There was a clear difference in microbial communities between drained and undrained fens, regardless of location. Community recovery upon rewetting was substantial in the majority of sites, and predictive functional profiling suggested a concomitant recovery of biogeochemical peatland functioning. However, communities in rewetted sites were only similar to those of undrained sites when soil organic matter quality (as expressed by cellulose fractions) and quantity were still sufficiently high. We estimate that a minimum organic matter content of ca. 70% is required to enable microbial recovery. We conclude that peatland recovery after rewetting is conditional on the level of drainage-induced degradation: severely altered physicochemical peat properties may preclude complete recovery for decades.
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$a van Diggelen, Rudy $u Ecosystem Management Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, 2610, Wilrijk, Belgium.
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$a Aggenbach, Camiel J S $u Ecosystem Management Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, 2610, Wilrijk, Belgium. KWR Watercycle Research Institute, P.O. Box 1072, 3430 BB, Nieuwegein, The Netherlands.
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$a Cajthaml, Tomáš $u Charles University, Institute for Environmental Studies, Benátská 2, CZ-128282801, Prague, Czech Republic.
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$a Frouz, Jan $u Charles University, Institute for Environmental Studies, Benátská 2, CZ-128282801, Prague, Czech Republic. Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology and SoWa RI, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic.
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$a Klimkowska, Agata $u Ecosystem Management Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, 2610, Wilrijk, Belgium.
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$a Kotowski, Wiktor $u Department of Plant Ecology and Environmental Conservation, Faculty of Biology, University of Warsaw, Centre for Biological and Chemical Sciences, ul. Żwirki i Wigury 101, 02-089, Warszawa, Poland.
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$a Kozub, Lukasz $u Department of Plant Ecology and Environmental Conservation, Faculty of Biology, University of Warsaw, Centre for Biological and Chemical Sciences, ul. Żwirki i Wigury 101, 02-089, Warszawa, Poland.
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$a Liczner, Yvonne $u Ecosystem Management Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, 2610, Wilrijk, Belgium.
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$a Seeber, Elke $u Institute of Botany and Landscape Ecology, University of Greifswald, partner in the Greifswald Mire Centre, Soldmannstr. 15, 17489, Greifswald, Germany.
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$a Silvennoinen, Hanna $u Soil Quality and Climate Change, Division for Environment and Natural Resources, Norwegian Institute of Bioeconomy Research (NIBIO), Hogskoleveien 7, 1430, Aas, Norway.
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$a Tanneberger, Franziska $u Institute of Botany and Landscape Ecology, University of Greifswald, partner in the Greifswald Mire Centre, Soldmannstr. 15, 17489, Greifswald, Germany.
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$a Vicena, Jakub $u Charles University, Institute for Environmental Studies, Benátská 2, CZ-128282801, Prague, Czech Republic.
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$a Wilk, Mateusz $u Department of Plant Ecology and Environmental Conservation, Faculty of Biology, University of Warsaw, Centre for Biological and Chemical Sciences, ul. Żwirki i Wigury 101, 02-089, Warszawa, Poland.
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$a Verbruggen, Erik $u Plants and Ecosystems Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, 2610, Wilrijk, Belgium.
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