The research conducted in my group is at the interface among hydrological, climatological, biogeochemical, and ecological systems. I am interested in understanding how biogeochemical transformations and ecosystem dynamics respond to changes in hydrological and climatological settings and forcings...
The research conducted in my group is at the interface among hydrological, climatological, biogeochemical, and ecological systems. I am interested in understanding how biogeochemical transformations and ecosystem dynamics respond to changes in hydrological and climatological settings and forcings. My work broadly fits under the umbrella of earth system science, biogeochemistry and ecohydrology. I employ observational, experimental, and modelling approaches to help us resolve fundamental questions related to process and pattern. Geographically the ecosystems attracting my current interest are located in the cool-temperate, boreal, subarctic and arctic ecoclimatic regions. The ecosystems of focus are wetlands, particularly peatlands, and forests. I conduct research in North America and Europe.
At the present time the primary foci of my research are a) the couplings among climate, hydrology and the biogeochemistry of northern wetland ecosystems, particularly the measurement and modelling of the role of peatland ecosystems in the global carbon and methane cycles, comprising three tightly linked studies on measurement and process studies of Fluxnet-Canada, modelling of the carbon dynamics of peatlands from the scale of individual peatlands to a global wetland model, and the determination of baseline greenhouse gas exchanges for peatlands in the James Bay region of Quebec; and b) the runoff hydrology and biogeochemistry of forested and wetland catchments, particularly the role the hydrological pathways play in the transport and transformation of biogeochemically important species. Currently we are examining how role catchment size and topography influence runoff response and biogeochemical export in relative steep, forested catchments.
I the brief outlines below I have included the names, in parentheses, of the undergraduate and graduate students, post-doctoral fellows, and research associates who are working with me.