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

Alexander Graf; Anne Klosterhalfen; Nicola Arriga; Christian Bernhofer; Heye Bogena; Frédéric Bornet; Nicolas Brüggemann; Christian Brümmer; Nina Buchmann; Jinshu Chi; Christophe Chipeaux; Edoardo Cremonese; Matthias Cuntz; Jiří Dušek; Tarek S. El-Madany; Silvano Fares; Milan Fischer; Lenka Foltýnová; Mana Gharun; Shiva Ghiasi; Bert Gielen; Pia Gottschalk; Thomas Grünwald; Günther Heinemann; Bernard Heinesch; Michal Heliasz; Jutta Holst; Lukas Hörtnagl; Andreas Ibrom; Joachim Ingwersen; Gerald Jurasinski; Janina Klatt; Alexander Knohl; Franziska Koebsch; Jan Konopka; Mika Korkiakoski; Natalia Kowalska; Pascal Kremer; Bart Kruijt; Sebastien Lafont; Joël Léonard; Anne De Ligne; Bernard Longdoz; Denis Loustau; Vincenzo Magliulo; Ivan Mammarella; Giovanni Manca; Matthias Mauder; Meelis Mölder; Mats Nilsson; Harry Vereecken; et al.

doi:10.1098/rstb.2019.0524

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

Alexander Graf, Anne Klosterhalfen, Nicola Arriga, Christian Bernhofer, Heye Bogena, Frédéric Bornet, Nicolas Brüggemann, Christian Brümmer, Nina Buchmann, Jinshu Chi, Christophe Chipeaux, Edoardo Cremonese, Matthias Cuntz, Jiří Dušek, Tarek S. El-Madany, Silvano Fares, Milan Fischer, Lenka Foltýnová, Mana Gharun, Shiva GhiasiBert Gielen, Pia Gottschalk, Thomas Grünwald, Günther Heinemann, Bernard Heinesch, Michal Heliasz, Jutta Holst, Lukas Hörtnagl, Andreas Ibrom, Joachim Ingwersen, Gerald Jurasinski, Janina Klatt, Alexander Knohl, Franziska Koebsch, Jan Konopka, Mika Korkiakoski, Natalia Kowalska, Pascal Kremer, Bart Kruijt, Sebastien Lafont, Joël Léonard, Anne De Ligne, Bernard Longdoz, Denis Loustau, Vincenzo Magliulo, Ivan Mammarella, Giovanni Manca, Matthias Mauder, Meelis Mölder, Mats Nilsson, Harry Vereecken, et al.

Research output: Contribution to journal › Article › peer-review

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'.

Original language	English
Article number	20190524
Number of pages	8
Journal	Philosophical Transactions of the Royal Society B: Biological Sciences
Volume	375
Issue number	1810
DOIs	https://doi.org/10.1098/rstb.2019.0524
Publication status	Published - 2020 Oct 26

Bibliographical note

Funding Information:
Authors thank the funders (grant IDs and particularly concerned authors/sites in parentheses) French National Research Agency ANR (ANR-11-LABX-0002-01, ANR-16-SUMF-0001-01, LabEx ARBRE, M.C.), Alexander von Humbold Stiftung (MaNiP, T.S.E.-M., M.Mi.), German Federal Ministry of Education and Research BMBF (01LN1313A, A.G.; ICOS; DE-Geb), German Federal Ministry of Food and Agriculture BMEL (ERA-NET FACCE ERA-GAS, P.G., F.S., C.Br.), German Research Foundation DFG (BE1721/23, C.Be., T.G., DE-Tha; PAK 346; FOR 1695, A.P., J.I., H.W., DE-EC2, DE-EC4; INST 186/1118-1 FUGG, A.Kn., L.S.), GIP Ecofor SOERE F-ORE-T (M.C.), Finnish Center of Excellence (307331, I.M.), Research Foundation-Flanders FWO (BE-Bra; G0H3317N, B.G.), Hainich National Park (DE-Hai), Helmholtz Association HGF (TERENO; VH-NG-821, T.S.), Horizon 2020 (696356, P.G.), ICOS-FINLAND (281255, I.M.), Kempe Foundation (SMK-1743, J.C.), Knut and Alice Wallenberg Foundation (2015.0047, M.P.), Max-Planck Institute for Biogeochemistry (DE-Geb), Russian Foundation for Basic Research RFBR (19-04-01234-a, A.V.), Swiss National Science Foundation (ICOS-CH Phase 2 20FI20_173691, M.G., N.Bu.; InnoFarm 407340_172433, N.Bu.), European Commission (SUPER-G, S.G.; RINGO, L.H.; ERA-NET Sumforest No. 606803, M.C.), Service Public de Wallonie (DGO6, 1217769, A.D.L., B.H., B.L., C.V.), SustES (CZ.02.1.01/0.0/0.0/16_019/0000797, L.Š., M.F.), CzeCOS (grant no. LM2015061, L.F., L.Š., M.F., N.K.), Swedish Research Council FORMAS (2016-01289, M.P.; 942-2015-49, J.C.) and University of Padua (CDPA148553, 2014, A.Pi.) Acknowledgements

Subject classification (UKÄ)

Physical Geography

Free keywords

eddy covariance
energy balance
evapotranspiration
heat flux
net carbon uptake
water-use efficiency

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1098/rstb.2019.0524

ICOS Sweden (Integrated Carbon Observation System)
Holst, J. (Manager) & Arnold, T. (Contact)
Centre for Environmental and Climate Science (CEC)
Infrastructure

Cite this

Graf, A., Klosterhalfen, A., Arriga, N., Bernhofer, C., Bogena, H., Bornet, F., Brüggemann, N., Brümmer, C., Buchmann, N., Chi, J., Chipeaux, C., Cremonese, E., Cuntz, M., Dušek, J., El-Madany, T. S., Fares, S., Fischer, M., Foltýnová, L., Gharun, M., ... et al. (2020). Altered energy partitioning across terrestrial ecosystems in the European drought year 2018: Energy partitioning in the drought 2018. Philosophical Transactions of the Royal Society B: Biological Sciences, 375(1810), Article 20190524. https://doi.org/10.1098/rstb.2019.0524

@article{d286df455310445580b51c424d31e6d3,

title = "Altered energy partitioning across terrestrial ecosystems in the European drought year 2018: Energy partitioning in the drought 2018",

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'. ",

keywords = "eddy covariance, energy balance, evapotranspiration, heat flux, net carbon uptake, water-use efficiency",

author = "Alexander Graf and Anne Klosterhalfen and Nicola Arriga and Christian Bernhofer and Heye Bogena and Fr{\'e}d{\'e}ric Bornet and Nicolas Br{\"u}ggemann and Christian Br{\"u}mmer and Nina Buchmann and Jinshu Chi and Christophe Chipeaux and Edoardo Cremonese and Matthias Cuntz and Ji{\v r}{\'i} Du{\v s}ek and El-Madany, {Tarek S.} and Silvano Fares and Milan Fischer and Lenka Folt{\'y}nov{\'a} and Mana Gharun and Shiva Ghiasi and Bert Gielen and Pia Gottschalk and Thomas Gr{\"u}nwald and G{\"u}nther Heinemann and Bernard Heinesch and Michal Heliasz and Jutta Holst and Lukas H{\"o}rtnagl and Andreas Ibrom and Joachim Ingwersen and Gerald Jurasinski and Janina Klatt and Alexander Knohl and Franziska Koebsch and Jan Konopka and Mika Korkiakoski and Natalia Kowalska and Pascal Kremer and Bart Kruijt and Sebastien Lafont and Jo{\"e}l L{\'e}onard and {De Ligne}, Anne and Bernard Longdoz and Denis Loustau and Vincenzo Magliulo and Ivan Mammarella and Giovanni Manca and Matthias Mauder and Meelis M{\"o}lder and Mats Nilsson and Harry Vereecken and {et al.}",

note = "Funding Information: Authors thank the funders (grant IDs and particularly concerned authors/sites in parentheses) French National Research Agency ANR (ANR-11-LABX-0002-01, ANR-16-SUMF-0001-01, LabEx ARBRE, M.C.), Alexander von Humbold Stiftung (MaNiP, T.S.E.-M., M.Mi.), German Federal Ministry of Education and Research BMBF (01LN1313A, A.G.; ICOS; DE-Geb), German Federal Ministry of Food and Agriculture BMEL (ERA-NET FACCE ERA-GAS, P.G., F.S., C.Br.), German Research Foundation DFG (BE1721/23, C.Be., T.G., DE-Tha; PAK 346; FOR 1695, A.P., J.I., H.W., DE-EC2, DE-EC4; INST 186/1118-1 FUGG, A.Kn., L.S.), GIP Ecofor SOERE F-ORE-T (M.C.), Finnish Center of Excellence (307331, I.M.), Research Foundation-Flanders FWO (BE-Bra; G0H3317N, B.G.), Hainich National Park (DE-Hai), Helmholtz Association HGF (TERENO; VH-NG-821, T.S.), Horizon 2020 (696356, P.G.), ICOS-FINLAND (281255, I.M.), Kempe Foundation (SMK-1743, J.C.), Knut and Alice Wallenberg Foundation (2015.0047, M.P.), Max-Planck Institute for Biogeochemistry (DE-Geb), Russian Foundation for Basic Research RFBR (19-04-01234-a, A.V.), Swiss National Science Foundation (ICOS-CH Phase 2 20FI20_173691, M.G., N.Bu.; InnoFarm 407340_172433, N.Bu.), European Commission (SUPER-G, S.G.; RINGO, L.H.; ERA-NET Sumforest No. 606803, M.C.), Service Public de Wallonie (DGO6, 1217769, A.D.L., B.H., B.L., C.V.), SustES (CZ.02.1.01/0.0/0.0/16_019/0000797, L.{\v S}., M.F.), CzeCOS (grant no. LM2015061, L.F., L.{\v S}., M.F., N.K.), Swedish Research Council FORMAS (2016-01289, M.P.; 942-2015-49, J.C.) and University of Padua (CDPA148553, 2014, A.Pi.) Acknowledgements ",

year = "2020",

month = oct,

day = "26",

doi = "10.1098/rstb.2019.0524",

language = "English",

volume = "375",

journal = "Philosophical Transactions of the Royal Society B: Biological Sciences",

issn = "0962-8436",

publisher = "Royal Society Publishing",

number = "1810",

}

Graf, A, Klosterhalfen, A, Arriga, N, Bernhofer, C, Bogena, H, Bornet, F, Brüggemann, N, Brümmer, C, Buchmann, N, Chi, J, Chipeaux, C, Cremonese, E, Cuntz, M, Dušek, J, El-Madany, TS, Fares, S, Fischer, M, Foltýnová, L, Gharun, M, Ghiasi, S, Gielen, B, Gottschalk, P, Grünwald, T, Heinemann, G, Heinesch, B, Heliasz, M, Holst, J, Hörtnagl, L, Ibrom, A, Ingwersen, J, Jurasinski, G, Klatt, J, Knohl, A, Koebsch, F, Konopka, J, Korkiakoski, M, Kowalska, N, Kremer, P, Kruijt, B, Lafont, S, Léonard, J, De Ligne, A, Longdoz, B, Loustau, D, Magliulo, V, Mammarella, I, Manca, G, Mauder, M, Mölder, M, Nilsson, M, Vereecken, H & et al. 2020, 'Altered energy partitioning across terrestrial ecosystems in the European drought year 2018: Energy partitioning in the drought 2018', Philosophical Transactions of the Royal Society B: Biological Sciences, vol. 375, no. 1810, 20190524. https://doi.org/10.1098/rstb.2019.0524

Altered energy partitioning across terrestrial ecosystems in the European drought year 2018: Energy partitioning in the drought 2018. / Graf, Alexander; Klosterhalfen, Anne; Arriga, Nicola et al.
In: Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 375, No. 1810, 20190524, 26.10.2020.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Altered energy partitioning across terrestrial ecosystems in the European drought year 2018

T2 - Energy partitioning in the drought 2018

AU - Graf, Alexander

AU - Klosterhalfen, Anne

AU - Arriga, Nicola

AU - Bernhofer, Christian

AU - Bogena, Heye

AU - Bornet, Frédéric

AU - Brüggemann, Nicolas

AU - Brümmer, Christian

AU - Buchmann, Nina

AU - Chi, Jinshu

AU - Chipeaux, Christophe

AU - Cremonese, Edoardo

AU - Cuntz, Matthias

AU - Dušek, Jiří

AU - El-Madany, Tarek S.

AU - Fares, Silvano

AU - Fischer, Milan

AU - Foltýnová, Lenka

AU - Gharun, Mana

AU - Ghiasi, Shiva

AU - Gielen, Bert

AU - Gottschalk, Pia

AU - Grünwald, Thomas

AU - Heinemann, Günther

AU - Heinesch, Bernard

AU - Heliasz, Michal

AU - Holst, Jutta

AU - Hörtnagl, Lukas

AU - Ibrom, Andreas

AU - Ingwersen, Joachim

AU - Jurasinski, Gerald

AU - Klatt, Janina

AU - Knohl, Alexander

AU - Koebsch, Franziska

AU - Konopka, Jan

AU - Korkiakoski, Mika

AU - Kowalska, Natalia

AU - Kremer, Pascal

AU - Kruijt, Bart

AU - Lafont, Sebastien

AU - Léonard, Joël

AU - De Ligne, Anne

AU - Longdoz, Bernard

AU - Loustau, Denis

AU - Magliulo, Vincenzo

AU - Mammarella, Ivan

AU - Manca, Giovanni

AU - Mauder, Matthias

AU - Mölder, Meelis

AU - Nilsson, Mats

AU - Vereecken, Harry

AU - et al.

N1 - Funding Information: Authors thank the funders (grant IDs and particularly concerned authors/sites in parentheses) French National Research Agency ANR (ANR-11-LABX-0002-01, ANR-16-SUMF-0001-01, LabEx ARBRE, M.C.), Alexander von Humbold Stiftung (MaNiP, T.S.E.-M., M.Mi.), German Federal Ministry of Education and Research BMBF (01LN1313A, A.G.; ICOS; DE-Geb), German Federal Ministry of Food and Agriculture BMEL (ERA-NET FACCE ERA-GAS, P.G., F.S., C.Br.), German Research Foundation DFG (BE1721/23, C.Be., T.G., DE-Tha; PAK 346; FOR 1695, A.P., J.I., H.W., DE-EC2, DE-EC4; INST 186/1118-1 FUGG, A.Kn., L.S.), GIP Ecofor SOERE F-ORE-T (M.C.), Finnish Center of Excellence (307331, I.M.), Research Foundation-Flanders FWO (BE-Bra; G0H3317N, B.G.), Hainich National Park (DE-Hai), Helmholtz Association HGF (TERENO; VH-NG-821, T.S.), Horizon 2020 (696356, P.G.), ICOS-FINLAND (281255, I.M.), Kempe Foundation (SMK-1743, J.C.), Knut and Alice Wallenberg Foundation (2015.0047, M.P.), Max-Planck Institute for Biogeochemistry (DE-Geb), Russian Foundation for Basic Research RFBR (19-04-01234-a, A.V.), Swiss National Science Foundation (ICOS-CH Phase 2 20FI20_173691, M.G., N.Bu.; InnoFarm 407340_172433, N.Bu.), European Commission (SUPER-G, S.G.; RINGO, L.H.; ERA-NET Sumforest No. 606803, M.C.), Service Public de Wallonie (DGO6, 1217769, A.D.L., B.H., B.L., C.V.), SustES (CZ.02.1.01/0.0/0.0/16_019/0000797, L.Š., M.F.), CzeCOS (grant no. LM2015061, L.F., L.Š., M.F., N.K.), Swedish Research Council FORMAS (2016-01289, M.P.; 942-2015-49, J.C.) and University of Padua (CDPA148553, 2014, A.Pi.) Acknowledgements

PY - 2020/10/26

Y1 - 2020/10/26

N2 - 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'.

AB - 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'.

KW - eddy covariance

KW - energy balance

KW - evapotranspiration

KW - heat flux

KW - net carbon uptake

KW - water-use efficiency

U2 - 10.1098/rstb.2019.0524

DO - 10.1098/rstb.2019.0524

M3 - Article

C2 - 32892732

AN - SCOPUS:85090376103

SN - 0962-8436

VL - 375

JO - Philosophical Transactions of the Royal Society B: Biological Sciences

JF - Philosophical Transactions of the Royal Society B: Biological Sciences

IS - 1810

M1 - 20190524

ER -

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

Abstract

Bibliographical note

Subject classification (UKÄ)

Free keywords

UN SDGs

Access to Document

Fingerprint

Equipment

ICOS Sweden (Integrated Carbon Observation System)

Cite this