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Direct and seasonal legacy effects of the 2018 heat wave and drought on European ecosystem productivity

Bastos, A.; Ciais, P.; Friedlingstein, P.; Friedlingstein, P.; Sitch, S.; Pongratz, J.; Pongratz, J.; Fan, L.; Wigneron, J. P.; Weber, U.; Reichstein, M.; Fu, Z.; Anthoni, P.; Arneth, A.; Haverd, V.; Jain, A. K.; Joetzjer, E.; Knauer, J.; Lienert, S.; Loughran, T.; ... mehr

Abstract:
In summer 2018, central and northern Europe were stricken by extreme drought and heat (DH2018). The DH2018 differed from previous events in being preceded by extreme spring warming and brightening, but moderate rainfall deficits, yet registering the fastest transition between wet winter conditions and extreme summer drought. Using 11 vegetation models, we show that spring conditions promoted increased vegetation growth, which, in turn, contributed to fast soil moisture depletion, amplifying the summer drought. We find regional asymmetries in summer ecosystem carbon fluxes: increased (reduced) sink in the northern (southern) areas affected by drought. These asymmetries can be explained by distinct legacy effects of spring growth and of water-use efficiency dynamics mediated by vegetation composition, rather than by distinct ecosystem responses to summer heat/drought. The asymmetries in carbon and water exchanges during spring and summer 2018 suggest that future land-management strategies could influence patterns of summer heat waves and droughts under long-term warming.

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Verlagsausgabe §
DOI: 10.5445/IR/1000121327
Veröffentlicht am 27.07.2020
Originalveröffentlichung
DOI: 10.1126/sciadv.aba2724
Scopus
Zitationen: 34
Dimensions
Zitationen: 37
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2375-2548
KITopen-ID: 1000121327
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Erschienen in Science advances
Verlag American Association for the Advancement of Science (AAAS)
Band 6
Heft 24
Seiten Article: eaba2724
Vorab online veröffentlicht am 10.06.2020
Nachgewiesen in Dimensions
Web of Science
Scopus
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