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Article Dans Une Revue Agricultural and Forest Meteorology Année : 2023

Pre- and post-drought conditions drive resilience of Pinus halepensis across its distribution range

1 RECOVER - Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience
2 WLU - Wilfrid Laurier University
3 Department of Agroforestry Technology and Science and Genetics, School of Advanced Agricultural and Forestry Engineering, University of Castilla La Mancha, Campus Universitario, 02071 Albacete, Spain
4 SILVA - SILVA
5 Università degli studi della Campania "Luigi Vanvitelli" = University of the Study of Campania Luigi Vanvitelli
6 EEAD - Estación Experimental de Aula Dei
7 Sustainable Forest Management Research Institute
8 UVa - Universidad de Valladolid [Valladolid]
9 URFM - Ecologie des Forêts Méditerranéennes
10 CSIC - Consejo Superior de Investigaciones Cientificas [España] = Spanish National Research Council [Spain]
11 University of Ljubljana
12 ESE - Ecologie Systématique et Evolution
13 University of Zaragoza - Universidad de Zaragoza [Zaragoza]
14 Research Institute of Water and Environmental Engineering—Re‐Forest
15 CSIC - Centro de Investigaciones Biológicas
16 Università degli studi della Tuscia [Viterbo]
17 BGU - Ben-Gurion University of the Negev
18 CITA - Centro de Investigación y Tecnología Agroalimentaria de Aragón
19 INIA - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria = National Institute for Agricultural and Food Research and Technology
20 UPV - Universitat Politècnica de València = Universitad Politecnica de Valencia = Polytechnic University of Valencia
21 Departamento Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares,
22 IMBE - Institut méditerranéen de biodiversité et d'écologie marine et continentale
23 University of Barcelona
24 INRGREF - Institut National de Recherche en Génie Rural Eaux et Forêts
25 Weizmann Institute of Science [Rehovot, Israël]
26 CAB - Centro de Astrobiologia [Madrid]
27 University Pablo de Olavide
28 Estaci´on Experimental de Aula Dei (EEAD-CSIC), Zaragoza, Spain
29 UAB - Universitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona
30 Ministerio para la Transici´on Ecol´ogica y el Reto Demogr´afico, Madrid, Spain
31 GREC-SUD Group of climate experts of the PACA region
32 Universitad de Valladolid
33 Agricultural University of Athens
34 UNIBAS - Università degli studi della Basilicata [Potenza]
35 Département de la Santé des Forêts
36 UPO - Universidad Pablo de Olavide [Sevilla]
37 Open University of Cyprus
38 Departamento de Ingeniería Hidr´aulica y Medio Ambiente, Universitat Polit´ecnica de Valencia, Camino de Vera s/n, E-46022 Valencia, Spain
39 CTFC - Centre de Ciència i Tecnologia Forestal de Catalunya
40 UdL-Agrotecnio - Department of Crop and Forest Sciences, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida-Agrotecnio Center
Vincent Badeau
Joseph Levillain
  • Fonction : Auteur
Cyrille Rathgeber
  • Fonction : Auteur
Clara Tallieu
  • Fonction : Auteur

Résumé

Severe droughts limit tree growth and forest productivity worldwide, a phenomenon which is expected to aggravate over the next decades. However, how drought intensity and climatic conditions before and after drought events modulate tree growth resilience remains unclear, especially when considering the range-wide phenotypic variability of a tree species. We gathered 4632 Aleppo pine (Pinus halepensis Mill.) tree-ring width series from 281 sites located in 11 countries across the Mediterranean basin, representing the entire geographic and bioclimatic range of the species. For each site and year of the period 1950–2020, we quantified tree-growth resilience and its two components, resistance and recovery, to account for the impact of drought and the capacity to recover from it. Relative drought intensity of each year was assessed using SPEI (Standardized Precipitation Evapotranspiration Index), a climatic water deficit index. Generalized additive mixed models were used to explore the non-linear relationships between resilience and its two components and drought intensity, preceding and following years climatic conditions. We found that P. halepensis radial growth was highly dependent on the SPEI from September of the previous year to June of the current year. Trees growing under more arid bioclimates showed higher inter-annual growth variability and were more sensitive to drought, resulting in an increased response magnitude to pre-, during and post-drought conditions. In contrast to our expectations, drought intensity only slightly affected resilience, which was rather negatively affected by favorable preceding conditions and improved by favorable following conditions. Resilience and its components are highly dependent on preceding and following years climatic conditions, which should always be taken into account when studying growth response to drought. With the observed and predicted increase in drought frequency, duration and intensity, favorable conditions following drought episodes may become rare, thus threatening the future acclimation capacity of P. halepensis in its current distribution.
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Dates et versions

hal-04181161 , version 1 (18-08-2023)

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Léa Veuillen, Bernard Prévosto, Raquel Alfaro-Sánchez, Vincent Badeau, Giovanna Battipaglia, et al.. Pre- and post-drought conditions drive resilience of Pinus halepensis across its distribution range. Agricultural and Forest Meteorology, 2023, 339, pp.109577. ⟨10.1016/j.agrformet.2023.109577⟩. ⟨hal-04181161⟩
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