Research: Trees under heat stress

Our forests are increasingly vulnerable to climate change. Rising temperatures and drought are affecting many tree species. Which ones are resilient enough to survive?

Our customer and partner, WSL, is exploring this in a model ecosystem MODOEK, where young European beech and downy oak trees are grown under controlled conditions – some with less water, others with temperatures 5°C higher, and some with both. After eight years, clear differences have emerged:

Key findings from the study:
• European beeches struggle with heat and drought, showing signs of stress and stunted growth.
• Downy oaks cope better with extreme conditions, using water more efficiently and adjusting leaf numbers.
• Water scarcity is a greater threat than heat. Beech trees suffer more from drought, while oaks manage better.
• Resource competition is crucial. Oaks outperform beeches in mixed stands.
• Trees can adapt – but only with time. Some species can adjust their photosynthesis temperature, but rapid climate shifts may put them at risk.

Sensors and long-term measurements are key to understanding how trees adapt to climate change.

Decentlab sensors can help collect detailed environmental data to track the trees responses. These findings guide scientists and foresters in preparing forest ecosystems for the future.

Which species will shape our forests future? Early results suggest that drought-resistant species like downy oak may play a major role. But research continues as our forests evolve.

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Devices for tree monitoring: DL-ZN, DL-ISF, DL-SMTP, DL-TRS21