I chair the Ecosystem Physiology department at the University of Freiburg. We investigate ecophysiological and ecosystem processes and functioning and their interaction with the environment. In particular, we assess vegetation response to climate change and feed-backs within the biosphere-atmosphere system, tracing different processes such as stress adaptations, soil-plant-atmosphere interaction, invasive species or ecophydrological processes, with a methodological focus on stable isotope ecology. One of our current project is 'ERC- Grant (EU) “Biochemical link between plant volatile organic compound (VOC) emissions and CO2 metabolism - from sub-molecular to ecosystem scales VOCO2'.