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Above and belowground wood formation thermal limits

Project description

Mapping the future of forest growth

Beyond altering growing seasons, climate change is impacting woody species by disrupting the biological processes that govern their growth, with consequences occurring below ground. Supported by the Marie Skłodowska-Curie Actions programme, the WOOD-LIM project aims to explore how temperature controls wood formation in trees and shrubs, with a particular focus on roots and stems throughout the growing season. It will study woody species along altitudinal gradients and using controlled temperature experiments. The findings will shed light on the thermal thresholds that regulate when wood formation begins and ends. It will also assess the role of root temperature, as well as phytohormones and carbohydrates. The project’s goal is to strengthen our ability to predict forest responses to climate change.

Objective

The timing and duration of the growing season of plants determine biomass production and strongly influence the global carbon and water cycles. However, predicting growing season start and end in woody species remains challenging due to limited knowledge of the fundamental factors controlling wood formation throughout the season, particularly belowground. Earlier research shows different thermal thresholds for trees and shrubs. The central hypothesis of the project is that the thermal limit of roots is close to freezing, and therefore lower than that of stems. Moreover, thermal limits are expected to vary little between trees and shrubs when taking into account the buffering effects of microclimate. The project will mainly focus on stem and root wood formation and its kinetics to evidence the timing of wood formation and the mechanism behind it. To achieve this, the project will combine in-situ monitoring of trees and shrubs along an altitudinal gradient, providing different thermal conditions with controlled experiments testing root temperature thresholds in the most common European woody species. the implication of phytohormones and carbohydrates for wood formation temperature threshold will be investigated. Ultimately, the research will provide a foundation for bottom-up assessments of woody species’ responses to climate change. The project outputs will be directly relevant for policymakers, offering key insights for forest management and the optimisation of ecosystem services, including timber production and climate change mitigation.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

EIDGENOSSISCHE FORSCHUNGSANSTALT WSL
Net EU contribution
€ 292 118,88
Address
ZUERCHERSTRASSE 111
8903 Birmensdorf
Switzerland
Region
Schweiz/Suisse/Svizzera Zürich Zürich
Activity type
Research Organisations
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Total cost
No data

Partners (1)