Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1016/j.scitotenv.2024.172049

Аннотация: Forests are undergoing increasing risks of drought-induced tree mortality. Species replacement patterns following mortality may have a significant impact on the global carbon cycle. Among major hardwoods, deciduous oaks (Quercus spp.) are increasingly reported as replacing dying conifers across the Northern Hemisphere. Yet, our knoПоказать полностьюwledge on the growth responses of these oaks to drought is incomplete, especially regarding post-drought legacy effects. The objectives of this study were to determine the occurrence, duration, and magnitude of legacy effects of extreme droughts and how that vary across species, sites, and drought characteristics. The legacy effects were quantified by the deviation of observed from expected radial growth indices in the period 1940–2016. We used stand-level chronologies from 458 sites and 21 oak species primarily from Europe, north-eastern America, and eastern Asia. We found that legacy effects of droughts could last from 1 to 5 years after the drought and were more prolonged in dry sites. Negative legacy effects (i.e., lower growth than expected) were more prevalent after repetitive droughts in dry sites. The effect of repetitive drought was stronger in Mediterranean oaks especially of Quercus faginea. Species-specific analyses revealed that Q. petraea and Q. macrocarpa from dry sites were more negatively affected by the droughts while growth of several oak species from mesic sites increased during post-drought years. Sites showing positive correlations to winter temperature showed little to no growth depression after drought, whereas sites with a positive correlation to previous summer water balance showed decreased growth. This may indicate that although winter warming favors tree growth during droughts, previous-year summer precipitation may predispose oak trees to current-year extreme droughts. Our results revealed a massive role of repetitive droughts in determining legacy effects and highlighted how growth sensitivity to climate, drought seasonality and species-specific traits drive the legacy effects in deciduous oak species.

Журнал: Science of the Total Environment

Выпуск журнала: Т. 926

Номера страниц: 172049

ISSN журнала: 00489697

Издатель: Elsevier Science Publishing Company, Inc.

• Bose Arun K. (WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland)
• Doležal Jiri (Institute of Botany, The Czech Academy of Sciences, Třeboň, Czech Republic)
• Scherrer Daniel (WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland)
• Altman Jan (Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Suchdol, 165 21, Prague 6, Czech Republic)
• Ziche Daniel (Faculty of Forest and Environment, Eberswalde University for Sustainable Development, 16225 Eberswalde, Germany)
• Martínez-Sancho Elisabet (Department of Biological Evolution, Ecology and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain)
• Bigler Christof (ETH Zurich, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems (ITES), Universitätstrasse, 22, 8092 Zurich, Switzerland)
• Bolte Andreas (Thünen Institute of Forest Ecosystems, Alfred-Moeller-Str. 1, Haus 41/42, 16225 Eberswalde, Germany)
• Colangelo Michele (Scuola di Scienze Agrarie, Forestali, Alimentari, e Ambientali, Università della Basilicata, Potenza, Italy)
• Dorado-Liñán Isabel (Departamento de Sistemas y Recursos Naturales, E.T.S.I. Montes Forestal y del Medio Natural, Universidad Politécnica de Madrid (UPM), Madrid, Spain)
• Drobyshev Igor (Southern Swedish Research Center, Swedish University of Agricultural Sciences, Alnarp, Sweden)
• Etzold Sophia (WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland)
• Fonti Patrick (WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland)
• Gessler Arthur (ETH Zurich, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems (ITES), Universitätstrasse, 22, 8092 Zurich, Switzerland)
• Kolář Tomáš (Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic)
• Koňasová Eva (Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic)
• Korznikov Kirill Aleksandrovich
• Lebourgeois François
• Lucas-Borja Manuel Esteban (Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla La Mancha, Albacete, Spain)
• Menzel Annette (Technische Universität München, TUM School of Life Sciences, Freising, Germany)
• Neuwirth Burkhard
• Nicolas Manuel (Departamento de Ciencia y Tecnología Agroforestal y Genética, Universidad de Castilla La Mancha, Albacete, Spain)
• Omelko Alexander Mikhaylovich
• Pederson Neil
• Petritan Any Mary
• Rigling Andreas (Thünen Institute of Forest Ecosystems, Alfred-Moeller-Str. 1, Haus 41/42, 16225 Eberswalde, Germany)
• Rybníček Michal
• Scharnweber Tobias
• Schröder Jens
• Silla Fernando
• Sochová Irena
• Sohar Kristina
• Ukhvatkina Olga Nikolaevna
• Vozmishcheva Anna Stepanovna
• Zweifel Roman
• Camarero J. Julio

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