Unraveling microbial processes involved in carbon and nitrogen cycling and greenhouse gas emissions in rewetted peatlands by molecular biology

Emilie Gios*, Erik Verbruggen, Joachim Audet, Rachel Burns, Klaus Butterbach-Bahl, Mikk Espenberg, Christian Fritz, Stephan Glatzel, Gerald Jurasinski, Tuula Larmola, Ülo Mander, Claudia Nielsen, Andres F. Rodriguez, Clemens Scheer, Dominik Zak, Hanna M. Silvennoinen

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Abstract

Restoration of drained peatlands through rewetting has recently emerged as a prevailing strategy to mitigate excessive greenhouse gas emissions and re-establish the vital carbon sequestration capacity of peatlands. Rewetting can help to restore vegetation communities and biodiversity, while still allowing for extensive agricultural management such as paludiculture. Belowground processes governing carbon fluxes and greenhouse gas dynamics are mediated by a complex network of microbial communities and processes. Our understanding of this complexity and its multi-factorial controls in rewetted peatlands is limited. Here, we summarize the research regarding the role of soil microbial communities and functions in driving carbon and nutrient cycling in rewetted peatlands including the use of molecular biology techniques in understanding biogeochemical processes linked to greenhouse gas fluxes. We emphasize that rapidly advancing molecular biology approaches, such as high-throughput sequencing, are powerful tools helping to elucidate the dynamics of key biogeochemical processes when combined with isotope tracing and greenhouse gas measuring techniques. Insights gained from the gathered studies can help inform efficient monitoring practices for rewetted peatlands and the development of climate-smart restoration and management strategies.

OriginalsprogEngelsk
TidsskriftBiogeochemistry
Vol/bind167
Sider (fra-til)609–629
ISSN0168-2563
DOI
StatusUdgivet - 2024

Bibliografisk note

Funding Information:
Open access funding provided by Norwegian institute for nature research. This research was partially funded through the 2019–2020 BiodivERsA joint call for research proposals, under the BiodivClim ERA-Net COFUND programme, and with the funding organisations: the Research Council of Norway (321649) for HMS and EG, Austrian Science Fund (FWF; I 5089-B) for SG and BELSPO via contract nr B2/20E/P1/PRINCESS for EV. TL acknowledges funding from European Union’s Horizon 2020 Research and Innovation Programme (Grant no 862695 European Joint Programme Soil). JA was supported by the Independent Research Fund Denmark, project DrivNOS (0217-00021B). CN received funding from the European Union’s Horizon Europe programme (WET HORIZONS, grant agreement no 101056848). CF was supported by the European Union’s Horizon Europe programme (FIBSUN, grant agreement no 101112318). UM was supported by the European Union Horizon programme under grant agreement No 101079192 (MLTOM23003R) and the European Research Council (ERC) under grant agreement No 101096403 (MLTOM23415R).

Publisher Copyright:
© The Author(s) 2024.

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