Article Dans Une Revue Forest Ecology and Management Année : 2022

Regional climate moderately influences species-mixing effect on tree growth-climate relationships and drought resistance for beech and pine across Europe

1 ELI - Earth and Life Institute [Louvain-La-Neuve]
2 SILVA - SILVA
3 Georg-August-University of Göttingen = Georg-August-Universität Göttingen
4 UBC - University of British Columbia [Canada]
5 SGGW - Warsaw University of Life Sciences
6 National Museum of Natural Sciences
7 VDU - Vytautas Magnus University - Vytauto Didziojo Universitetas
8 Universitat de Lleida
9 CSIC - Centro de Investigaciones Biológicas
10 WUR - Wageningen University and Research [Wageningen]
11 Southern Swedish Forest Research Centre
12 LWF - Bayerische Landesanstalt für Wald und Forstwirtschaft - Bavarian State Institute of Forestry
13 MENDELU - Mendel University in Brno
14 UNFU - Ukrainian National Forestry University
15 SLU - Swedish University of Agricultural Sciences = Sveriges lantbruksuniversitet
16 Institute of Computer Science [University of Tartu, Estonie]
17 University of Novi Sad
18 UNITO - Università degli studi di Torino = University of Turin
19 Pedagogical University of Krakow
20 UTAD - Universidade de Trás-os-Montes e Alto Douro
21 TUM - Technische Universität Munchen - Technical University Munich - Université Technique de Munich
22 TUZVO - Technical University in Zvolen
23 Forestry and Game Management Research Institute
24 CZU - Czech University of Life Sciences Prague
25 UGENT - Universiteit Gent = Ghent University = Université de Gand
26 BAS - Bulgarian Academy of Sciences = Académie bulgare des sciences [Académie des sciences de Bulgarie] = Българска академия на науките
François F. Lebourgeois
Catherine Collet
Maciej Pach

Résumé

Increasing species diversity is considered a promising strategy to mitigate the negative impacts of global change on forests. However, the interactions between regional climate conditions and species-mixing effects on climate-growth relationships and drought resistance remain poorly documented. In this study, we investigated the patterns of species-mixing effects over a large gradient of environmental conditions throughout Europe for European beech (Fagus sylvatica L.) and Scots pine (Pinus sylvestris L.), two species with contrasted ecological traits. We hypothesized that across large geographical scales, the difference of climate-growth relationships and drought resistance between pure and mixed stands would be dependent on regional climate. We used tree ring chronologies derived from 1143 beech and 1164 pine trees sampled in 30 study sites, each composed of one mixed stand of beech and pine and of the two corresponding pure stands located in similar site conditions. For each site and stand, we used Bootstrapped Correlation Coefficients (BCCs) on standardized chronologies and growth reduction during drought years on raw chronologies to analyze the difference in climate-tree growth relationships and resistance to drought between pure and mixed stands. We found consistent large-scale spatial patterns of climate-growth relationships. Those patterns were similar for both species. With the exception of the driest climates where pure and mixed beech stands tended to display differences in growth correlation with the main climatic drivers, the mixing effects on the BCCs were highly variable, resulting in the lack of a coherent response to mixing. No consistent species-mixing effect on drought resistance was found within and across climate zones. On average, mixing had no significant effect on drought resistance for neither species, yet it increased pine resistance in sites with higher climatic water balance in autumn. Also, beech and pine most often differed in the timing of their drought response within similar sites, irrespective of the regional climate, which might increase the temporal stability of growth in mixed compared to pure stands. Our results showed that the impact of species mixing on tree response to climate did not strongly differ between groups of sites with distinct climate characteristics and climate-growth relationships, indicating the interacting influences of species identity, stand characteristics, drought events characteristics as well as local site conditions.
Fichier principal
Vignette du fichier
G_deStreel_et_al_2022_FEM.pdf (1) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03880260 , version 1 (14-12-2022)

Identifiants

Citer

Géraud de Streel, François F. Lebourgeois, Christian Ammer, Ignacio Barbeito, Kamil Bielak, et al.. Regional climate moderately influences species-mixing effect on tree growth-climate relationships and drought resistance for beech and pine across Europe. Forest Ecology and Management, 2022, 520, pp.120317. ⟨10.1016/j.foreco.2022.120317⟩. ⟨hal-03880260⟩
104 Consultations
104 Téléchargements

Altmetric

Partager

More