TreeNet Annual Meeting 2026 in Basel

This year’s TreeNet annual meeting was hosted by Ansgar Kahmen and his group at the Botanical Institute in Basel.

Program with links to presentations
09:30 – 10:00 Welcome coffee
10:00 – 10:30 Roman Zweifel (WSL) TreeNet Overview
10:30 – 10:50 Sophia Etzold (WSL) Comparison of 25 years of tree growth and NEP data at a subalpine forest site
10:50 – 11:10 Mirko Lukovic (WSL) Machine learning-based L3 processing of dendrometer data
11:10 – 11:30 Capucine Marion (EAWAG) Dissolved gases in tree sap as new eco-hydrogeological tracers
11:30 – 11:50 Günter Hoch (UniBas) Low temperature induced hydraulic constraints as a potential driver for the cold distribution limits of temperate trees
11:50 – 12:10 Nina Buchmann (ETHZ) How atmospheric dryness shapes the global forest carbon sink

12:15 – 13:15 Lunch (cafeteria)

1:20 p.m. – 1:50 p.m. Stefan Hunziker (WSL) Manipulating precipitation & atmospheric water demand: Effects on adult Pinus sylvestris in the VPDrought project
1:50 p.m. – 2:10 p.m. Ansgar Kahmen (UniBas) Root water uptake depth explains the drought response of temperate tree species
2:10 p.m. – 2:30 p.m. Jan Svoboda (HSLU) Forecasting tree water deficit to identify climatological drivers of forest drought using explainable deep learning
2:30 p.m. – 2:50 p.m. Stefano Martinetti (ETHZ) Exploring the effect of tree hydraulic capacitance on soil-plant hydraulics and transpiration
2:50 p.m. – 3:10 p.m. Arun Bose (WSL) Tree growth under tension: Atmospheric demand, soil water supply, and the physiological bottleneck

3:10 p.m. – 3:30 p.m. Coffee break

3:30 p.m. – 4:30 p.m. TreeNet board meeting