Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 569825
Title Altered energy partitioning across terrestrial ecosystems in the European drought year 2018
Author(s) Graf, Alexander; Klosterhalfen, Anne; Arriga, Nicola; Bernhofer, Christian; Bogena, Heye; Bornet, Frédéric; Brüggemann, Nicolas; Brümmer, Christian; Buchmann, Nina; Chi, Jinshu; Chipeaux, Christophe; Cremonese, Edoardo; Cuntz, Matthias; Dušek, Jiří; El-Madany, Tarek S.; Fares, Silvano; Fischer, Milan; Foltýnová, Lenka; Gharun, Mana; Ghiasi, Shiva; Gielen, Bert; Gottschalk, Pia; Grünwald, Thomas; Heinemann, Günther; Heinesch, Bernard; Heliasz, Michal; Holst, Jutta; Hörtnagl, Lukas; Ibrom, Andreas; Ingwersen, Joachim; Jurasinski, Gerald; Klatt, Janina; Knohl, Alexander; Koebsch, Franziska; Konopka, Jan; Korkiakoski, Mika; Kowalska, Natalia; Kremer, Pascal; Kruijt, Bart; Lafont, Sebastien; Léonard, Joël; Ligne, Anne De; Longdoz, Bernard; Loustau, Denis; Magliulo, Vincenzo; Mammarella, Ivan; Manca, Giovanni; Mauder, Matthias; Migliavacca, Mirco; Mölder, Meelis; Neirynck, Johan; Ney, Patrizia; Nilsson, Mats; Paul-Limoges, Eugénie; Peichl, Matthias; Pitacco, Andrea; Poyda, Arne; Rebmann, Corinna; Roland, Marilyn; Sachs, Torsten; Schmidt, Marius; Schrader, Frederik; Siebicke, Lukas; Šigut, Ladislav; Tuittila, Eeva Stiina; Varlagin, Andrej; Vendrame, Nadia; Vincke, Caroline; Völksch, Ingo; Weber, Stephan; Wille, Christian; Wizemann, Hans Dieter; Zeeman, Matthias; Vereecken, Harry
Source Philosophical Transactions of the Royal Society B. Biological sciences 375 (2020)1810. - ISSN 0962-8436 - 1 p.
DOI https://doi.org/10.1098/rstb.2019.0524
Department(s) Water Systems and Global Change
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2020
Keyword(s) eddy covariance - energy balance - evapotranspiration - heat flux - net carbon uptake - water-use efficiency
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 CO2 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 CO2 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'.

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