13CO2 isotope labeling of beech trees in the common garden experiment at University of Zurich on 16.06.2025. Assembling of labling chambers on control and drought exposed plants to trace aerosol and plant volatile production, emission and deposition. The experiment was carried out as part of the project "The significance of aerosols and volatile organic substances for the incorporation of plant biomass into soil" funded by the Foundation for Research in Science and the Humanities at the University of Zurich under contract STWF-25-023.