My research program focuses on the carbon (C) cycling between the terrestrial biosphere and the atmosphere. I am particularly interested in understanding how climate change and land-use affect the allocation, cycling, and residence time of C in soils and plants. In turn, my studies further the science of terrestrial ecosystem feedbacks to the climate system, i.e. by constraining future levels of greenhouse gases in the atmosphere.
To monitor and predict changes in the cycling of C in terrestrial ecosystems, I apply field observations from natural soil and experiments. I use a variety of biogeochemical tools, including the analysis of trace gases (CO2, CH4, N2O), their stable C isotopes and radiocarbon content (14C-AMS) and soil incubations.
My research activities spread over different kind of ecosystems from the high latitudes (Lapland, Greenland, Svalbard and Alaska) to the Tropics (SE Asia). Click on the below figures for more details on the different projects.
Carbon budget in tropical peat swamp forest under land-use change
Carbon loss from tropical peatlands after fire events
Carbon cycling in permafrost