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Altered energy partitioning across terrestrial ecosystems in the European drought year 2018

Graf, Alexander and Klosterhalfen, Anne and Arriga, Nicola and Bogena, Heye and Bernhofer, Christian and Bornet, Frederic and Brüggemann, Nicolas and Bruemmer, Christian and Buchmann, Nina and Chi, Jinshu and Chipeaux, Christophe and Cremonese, Edoardo and Cuntz, Matthias and Dusek, Jiri and El-Madany, Tarek S. and Fares, Silvano and Fischer, Milan and Foltynova, Lenka and Gharun, Mana and Ghiasi, Shiva and Gielen, Bert and Gottschalk, Pia and Gruenwald, Thomas and Heinemann, Guenther and Heinesch, Bernard and Heliasz, Michal and Holst, Jutta and Hoertnagl, Lukas and Ibrom, Andreas and Ingwersen, Joachim and Jurasinski, Gerald and Klatt, Janina and Knohl, Alexander and Koebsch, Franziska and Konopka, Jan and Korkiakoski, Mika and Kowalska, Natalia and Kremer, Pascal and Kruijt, Bart and Lafont, Sebastien and Leonard, Joel and De Ligne, Anne and Longdoz, Bernard and Loustau, Denis and Magliulo, Vincenzo and Mammarella, Ivan and Manca, Giovanni and Mauder, Matthias and Migliavacca, Mirco and Molder, Meelis and Neirynck, Johan and Ney, Patrizia and Nilsson, Mats and Paul-Limoges, Eugenie and Peichl, Matthias and Pitacco, Andrea and Poyda, Arne and Rebmann, Corinna and Roland, Marilyn and Sachs, Torsten and Schrader, Frederik and Schmidt, Marius and Siebicke, Lukas and Sigut, Ladislav and Tuittila, Eeva-Stiina and Varlagin, Andrej and Vendrame, Nadia and Vincke, Caroline and Voelksch, Ingo and Weber, Stephan and Wille, Christian and Wizemann, Hans-Dieter and Zeeman, Matthias and Vereecken, Harry (2020). Altered energy partitioning across terrestrial ecosystems in the European drought year 2018. Philosophical Transactions B: Biological Sciences. 375 , 20190524
[Research article]

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Abstract

Drought and heat events, such as the 2018 European drought, interact with the exchange of energy between the land surface and the atmosphere, potentially affecting albedo, sensible and latent heat fluxes, as well as CO(2)exchange. Each of these quantities may aggravate or mitigate the drought, heat, their side effects on productivity, water scarcity and global warming. We used measurements of 56 eddy covariance sites across Europe to examine the response of fluxes to extreme drought prevailing most of the year 2018 and how the response differed across various ecosystem types (forests, grasslands, croplands and peatlands). Each component of the surface radiation and energy balance observed in 2018 was compared to available data per site during a reference period 2004-2017. Based on anomalies in precipitation and reference evapotranspiration, we classified 46 sites as drought affected. These received on average 9% more solar radiation and released 32% more sensible heat to the atmosphere compared to the mean of the reference period. In general, drought decreased net CO(2)uptake by 17.8%, but did not significantly change net evapotranspiration. The response of these fluxes differed characteristically between ecosystems; in particular, the general increase in the evaporative index was strongest in peatlands and weakest in croplands. This article is part of the theme issue 'Impacts of the 2018 severe drought and heatwave in Europe: from site to continental scale'.

Authors/Creators:Graf, Alexander and Klosterhalfen, Anne and Arriga, Nicola and Bogena, Heye and Bernhofer, Christian and Bornet, Frederic and Brüggemann, Nicolas and Bruemmer, Christian and Buchmann, Nina and Chi, Jinshu and Chipeaux, Christophe and Cremonese, Edoardo and Cuntz, Matthias and Dusek, Jiri and El-Madany, Tarek S. and Fares, Silvano and Fischer, Milan and Foltynova, Lenka and Gharun, Mana and Ghiasi, Shiva and Gielen, Bert and Gottschalk, Pia and Gruenwald, Thomas and Heinemann, Guenther and Heinesch, Bernard and Heliasz, Michal and Holst, Jutta and Hoertnagl, Lukas and Ibrom, Andreas and Ingwersen, Joachim and Jurasinski, Gerald and Klatt, Janina and Knohl, Alexander and Koebsch, Franziska and Konopka, Jan and Korkiakoski, Mika and Kowalska, Natalia and Kremer, Pascal and Kruijt, Bart and Lafont, Sebastien and Leonard, Joel and De Ligne, Anne and Longdoz, Bernard and Loustau, Denis and Magliulo, Vincenzo and Mammarella, Ivan and Manca, Giovanni and Mauder, Matthias and Migliavacca, Mirco and Molder, Meelis and Neirynck, Johan and Ney, Patrizia and Nilsson, Mats and Paul-Limoges, Eugenie and Peichl, Matthias and Pitacco, Andrea and Poyda, Arne and Rebmann, Corinna and Roland, Marilyn and Sachs, Torsten and Schrader, Frederik and Schmidt, Marius and Siebicke, Lukas and Sigut, Ladislav and Tuittila, Eeva-Stiina and Varlagin, Andrej and Vendrame, Nadia and Vincke, Caroline and Voelksch, Ingo and Weber, Stephan and Wille, Christian and Wizemann, Hans-Dieter and Zeeman, Matthias and Vereecken, Harry
Title:Altered energy partitioning across terrestrial ecosystems in the European drought year 2018
Series Name/Journal:Philosophical Transactions B: Biological Sciences
Year of publishing :2020
Volume:375
Article number:20190524
Number of Pages:8
ISSN:0962-8436
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Meteorology and Atmospheric Sciences
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:eddy covariance, energy balance, evapotranspiration, heat flux, net carbon uptake, water-use efficiency
URN:NBN:urn:nbn:se:slu:epsilon-p-107350
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107350
Additional ID:
Type of IDID
DOI10.1098/rstb.2019.0524
Web of Science (WoS)000570228700005
Otherhttps://royalsocietypublishing.org/doi/10.1098/rstb.2019.0524
ID Code:22799
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:19 Mar 2021 09:23
Metadata Last Modified:19 Mar 2021 09:31

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