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Lake Ontario Watershed


Using a nested, longitudinal design, we are monitoring both tile-outlets and recipient water bodies for nutrients, particulate matter and stream flow to determine the impact of agricultural intensification on water quantity and quality.  Selected publications from this work are linked below. 

Agricultural intensification and urban expansion affect the seasonal flow regime in southern Ontario watersheds


B. Lockett, J. Buttle, J.A. Leach, R. Sorichetti, F.S. Liu, M.C. Eimers

Hydrological Processes, vol. 38(6), 2024


Below ground chemical and microbial community responses of wood ash addition to a hardwood forest in central Ontario


E. Smith, N. Basiliko, M.C. Eimers, K. Munford, P. Hazlett, S.A. Watmough

Canadian Journal of Forest Research Canadian Journal of Forest Research, vol. 54(11), 2024, pp. 1325-1338


Agricultural intensification leads to higher nitrate levels in Lake Ontario tributaries


F.S. Liu, B.R. Lockett, R.J. Sorichetti, S.A. Watmough, M.C. Eimers

The Science of The Total Environment, vol. 830(1), 2022


Liming legacy effects associated with the world's largest soil liming and regreening program in Sudbury, Ontario, Canada


E.J Kellaway, M.C. Eimers, S.A. Watmough

Science of The Total Environment, vol. 805, Elsevier, 2022, p. 150321


Land Use, Land Cover, and Climate Change in Southern Ontario: Implications for Nutrient Delivery to the Lower Great Lakes


M.C. Eimers, F.S. Liu, J. Bontje

Contaminants of the Great Lakes, vol. 101, 2020, pp. 235–249


Rapid Recent Recovery from Acidic Deposition in Central Ontario Lakes


S.A. Watmough, M.C. Eimers

Soil Systems, vol. 4(1), 2020


Impact of selection harvesting on the foliar chemistry of sugar maple seedlings established on base-poor soils in central Ontario, Canada


T. Treasure, S.A. Watmough, M.C. Eimers, H. Murray

Forest Ecology and Management, vol. 435, 2019, pp. 1-7


Stream nutrient and agricultural land-use trends from 1971 to 2010 in Lake Ontario tributaries


M.J. DeBues, M.C. Eimers, S.A. Watmough, M.N. Mohamed, J. Mueller

Journal of Great Lakes Research, vol. 45, 2019, pp. 752-761


Increasing nitrate concentrations in streams draining into Lake Ontario


M.C. Eimers, S.A. Watmough

Journal of Great Lakes Research, vol. 42, 2016, pp. 356-363


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