My research focuses on the reactive interfaces in agroecosystems, that is, areas in the landscape characterised by steep gradients in chemical, physical, and biological properties and are “hot spots” of biogeochemical activity. One example of a reactive interface that my research will examine is the “Capillary Fringe”, which is the interface between the saturated and vadose zones in subsurface soil and where nutrient and carbon rich water from the oxic unsaturated zone meets the anoxic groundwater zone. I will conduct experiments using state-of-the-art-soil column systems developed in the Ecohydrology Research Group to quantify carbon and nutrient transport dynamics in agricultural soils under dynamic hydrological (e.g., water table fluctuations) and climatic forcings (e.g., freezing and thawing cycles) of the Capillary Fringe interface. This research will have applications in the development of best management practices (BMPs) that minimize the transport of nutrients from agricultural soils to streams.
- NSERC Alexander Graham Bell Canada Graduate Scholarship
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