Environment 1 (EV1), room 311
519-888-4567, ext. 32433
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Room EV1-237, ext. 33064
mmacrae@uwaterloo.ca
F2019 office hours: Please Email Professor
Merrin started in the Department in 2006 and has research interests in the linkages between hydroclimatology, biogeochemical cycling and surface-water chemistry in both natural and impacted systems under variable climatic regimes and following disturbance or land use change. Her work is largely in agricultural watersheds and wetland ecosystems
For more information please visit Merrin Macrae's research group.
Key Areas of Graduate Supervision
biogeochemistry, hydrology, wetland science, agricultural water quality, agricultural tile drainage, nutrients
Recent Courses Taught
GEOG 407: Environmental Hydrology
GEOG 640: Seminar in Physical Geography
GEOG 675: Applied Biogeochemistry
Research Interests
Dr. Macrae’s research interests center around the effects of changing hydrologic conditions on biogeochemical processes (carbon, nitrogen, phosphorus) in both natural and disturbed environments. Types of hydrologic change include those that result from land-use modification (e.g. agriculture, drainage) or climate variability. Her work largely involves both field and laboratory research, and her study areas have included sites in Ontario, eastern Quebec, northern Alberta, and northern Manitoba.
She is interested in how nutrient supply and transport processes interact to control nutrient fluxes, and, how such interactions change with climate variability or anthropogenic disturbance. In agricultural systems, she is currently investigating year-round phosphorus losses in tile drain effluent and how these losses are affected by tillage practices. She is also investigating both hydrological and biogeochemical processes in northern peatlands, and how these processes may change under a warmer climate.
Selected Publications (for full list, see research page)
*denotes MM HQP; ** denotes other HQP
Macrae, M.L., K.J. Devito, M. Strack and J.M. Waddington (2012) Effect of water table drawdown on nutrient dynamics in temperate peatlands. Biogeochemistry. 112(1-3): 661-676. DOI 10.1007/s10533-012-9730-3.
Macrae, M.L., M.C. English, S.L. Schiff and M. Stone (2010) Influence of antecedent hydrologic conditions on patterns of hydrochemical export from a first-order agricultural watershed in Southern Ontario. J. Hydrol. 389(1-2): 101-110.
Macrae, M.L., M.C. English, S.L. Schiff and M. Stone (2007) Annual contribution of drainage tiles to phosphate export from a 1st order agricultural catchment in Southern Ontario. Agricultural Water Management. 92 (3): 171-182.
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