My interests lie in the relationships between soil and the environment, particularly the regulation of fluxes of gases, nutrients and elements between the soil and the atmosphere, the biosphere and the hydrosphere and the effect of human activities and climate and global change. Study sites include wetlands and forested soils, in Canada, the U.S., Panama and New Zealand. My work attempts to integrate aspects of atmospheric chemistry, plant ecology, hydrology, microbiology and soil science in a search to understand biogeochemical patterns in the landscape.