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Assessment of habitat vulnerability for a better adaptation of forests to climate change / Ceridwen Dupont-Doaré (2022) 

Public Titre : Assessment of habitat vulnerability for a better adaptation of forests to climate change Type de document : Article/Communication Auteurs : Ceridwen Dupont-Doaré, Auteur ; Thomas Brusten, Auteur ; Christian Piedallu, Auteur ; Ingrid Bonhême , Auteur ; Eric Sevrin, Auteur Editeur : Nancy, Metz : Université de Lorraine Année de publication : 2022 Conférence : SFE² GfÖ EEF 2022, joint meeting, international conference on ecological sciences, Ecology and evolution: new perspectives and societal challenges 21/11/2022 25/11/2022 Metz France OA Abstracts only Langues : Anglais (eng) Résumé : (auteur) Effects of climate change over temperate forest ecosystems are increasingly visible. Most of the tools developed to evaluate the risks associated to climate change mainly focus on individual tree species (phenology, productivity, overmortality, distribution, etc.), without an integrative outlook of ecosystems’ vulnerability. To meet the urgent need of adaptation, it is imperative to determine the climatic vulnerability of forest habitats in order to better support them in current upheavals. We put forward a methodology to evaluate forest habitats vulnerability to climate change that can be used either for a territorial or for a stand scale of study. It is based on an index approach, with indexes related to the different components of vulnerability -exposure, sensitivity and adaptive capacity-. Exposure indexes study how the climate evolves inside the habitat’s range of distribution, and how the habitat is exposed to pests or pathogenic fungi for its main tree species. Sensitivity indexes include habitat, tree and floristic species distribution modelling and projection under several scenarios of climate change. Sensitivity also relies on dieback measurements. Finally, adaptive capacity considers information about i) the potential extension of the habitat’s distribution range, ii) habitat successional stage, iii) traits of the main tree species composing the habitat, field data related to iv) stand structural diversity, v) tree species richness, vi) historical and geographical context. Once the indexes are determined, they are combined to characterise the vulnerability status of the habitat. According to the estimated level of vulnerability, management recommendations falling within the concept of adaptive silviculture are suggested in order to anticipate and mitigate the effects of climate change. Management recommendations draw on experiments and practices already implemented in the study area, as well as discussion with local stakeholders, so that they best respond to the issues of the territory. In addition, test parcels can be set-up to try adaptive silviculture techniques based on scientific literature. Numéro de notice : C2022-046 Affiliation des auteurs : IGN+Ext (2020- ) Thématique : FORET Nature : Poster nature-HAL : Poster-avec-CL DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102435

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