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Ultrasonic emissions reveal individual cavitation bubbles in water-stressed wood

Archive ouverte | Ponomarenko, Alexandre | CCSD

Under drought conditions, the xylem of trees that conducts ascending sap produces ultrasonic emissions whose exact origin is not clear. We introduce a new method to record simultaneously both acoustic events and optical observatio...

Dynamics of cavitation in real and artificial trees

Archive ouverte | Vincent, Olivier | CCSD

In a tree, water is transported from the roots to the leaves by the xylem structure composed of conducting elements (tracheids in gymnosperms and vessels in angiosperms). This is achieved by evaporation in the leaves which pulls t...

The spreading of air embolism in tree leaves: High speed imaging

Archive ouverte | Thiévenaz, Virgile | CCSD

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