Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1111/gcb.16028
Licence creative commons licence
Title (Primary) Cumulative growth and stress responses to the 2018–2019 drought in a European floodplain forest
Author Schnabel, F.; Purrucker, S.; Schmitt, L.; Engelmann, R.A.; Kahl, A.; Richter, R.; Seele-Dilbat, C.; Skiadaresis, G.; Wirth, C.
Source Titel Global Change Biology
Year 2022
Department NSF
Volume 28
Issue 5
Page From 1870
Page To 1883
Language englisch
Topic T5 Future Landscapes
Data and Software links https://doi.org/10.25829/idiv.3497-f384aa
https://doi.org/10.25829/idiv.3498-b3z822
Supplements https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fgcb.16028&file=gcb16028-sup-0001-Supinfo.pdf
Keywords cavitation resistance; climate change; dendroecology; forest ecology; growth resistance; hotter drought; stomatal control; temperate forests; tree rings; δ13C
Abstract Droughts increasingly threaten the world's forests and their potential to mitigate climate change. In 2018–2019, Central European forests were hit by two consecutive hotter drought years, an unprecedented phenomenon that is likely to occur more frequently with climate change. Here, we examine tree growth and physiological stress responses (increase in carbon isotope composition; Δδ13C) to this consecutive drought based on tree rings of dominant tree species in a Central European floodplain forest. Tree growth was not reduced for most species in 2018, indicating that water supply in floodplain forests can partly buffer meteorological water deficits. Drought stress responses in 2018 were comparable to former single drought years but the hotter drought in 2018 induced drought legacies in tree growth while former droughts did not. We observed strong decreases in tree growth and increases in Δδ13C across all tree species in 2019, which are likely driven by the cumulative stress both consecutive hotter droughts exerted. Our results show that consecutive hotter droughts pose a novel threat to forests under climate change, even in forest ecosystems with comparably high levels of water supply.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25509
Schnabel, F., Purrucker, S., Schmitt, L., Engelmann, R.A., Kahl, A., Richter, R., Seele-Dilbat, C., Skiadaresis, G., Wirth, C. (2022):
Cumulative growth and stress responses to the 2018–2019 drought in a European floodplain forest
Glob. Change Biol. 28 (5), 1870 - 1883 10.1111/gcb.16028