Effect of the 2018 European drought on methane and carbon dioxide exchange of northern mire ecosystems

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Rinne , J , Tuovinen , J -P , Klemedtsson , L , Aurela , M , Holst , J , Lohila , A , Weslien , P , Vestin , P , Łakomiec , P , Peichl , M , Peichl , M , Tuittila , E -S , Heiskanen , L , Laurila , T , Li , X , Alekseychik , P , Mammarella , I , Ström , L , Crill , P & Nilsson , M B 2020 , ' Effect of the 2018 European drought on methane and carbon dioxide exchange of northern mire ecosystems ' , Philosophical Transactions of the Royal Society. Biological Sciences , vol. 375 , no. 1810 , 20190517 . https://doi.org/10.1098/rstb.2019.0517

Title: Effect of the 2018 European drought on methane and carbon dioxide exchange of northern mire ecosystems
Author: Rinne, J.; Tuovinen, J. -P.; Klemedtsson, L.; Aurela, M.; Holst, J.; Lohila, A.; Weslien, P.; Vestin, P.; Łakomiec, P.; Peichl, M.; Peichl, M.; Tuittila, E. -S.; Heiskanen, L.; Laurila, T.; Li, Xuefei; Alekseychik, P.; Mammarella, I.; Ström, L.; Crill, P.; Nilsson, M. B.
Contributor: University of Helsinki, Doctoral Programme in Atmospheric Sciences
University of Helsinki, Biosciences
University of Helsinki, Finnish Meteorological Institute
University of Helsinki, Micrometeorology and biogeochemical cycles
University of Helsinki, Institute for Atmospheric and Earth System Research (INAR)
University of Helsinki, Doctoral Programme in Atmospheric Sciences
Date: 2020-10-26
Language: eng
Number of pages: 11
Belongs to series: Philosophical Transactions of the Royal Society. Biological Sciences
ISSN: 0962-8436
URI: http://hdl.handle.net/10138/323336
Abstract: We analysed the effect of the 2018 European drought on greenhouse gas (GHG) exchange of five North European mire ecosystems. The low precipitation and high summer temperatures in Fennoscandia led to a lowered water table in the majority of these mires. This lowered both carbon dioxide (CO2) uptake and methane (CH4) emission during 2018, turning three out of the five mires from CO(2)sinks to sources. The calculated radiative forcing showed that the drought-induced changes in GHG fluxes first resulted in a cooling effect lasting 15-50 years, due to the lowered CH(4)emission, which was followed by warming due to the lower CO(2)uptake. This article is part of the theme issue 'Impacts of the 2018 severe drought and heatwave in Europe: from site to continental scale'.
Subject: greenhouse gas
greenhouse warming potential
wetland
peat
water table
BOREAL FEN
FLUX MEASUREMENTS
CO2 EXCHANGE
EMISSION
TEMPERATE
WETLANDS
FINLAND
114 Physical sciences
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