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  • http://hdl.handle.net/10402/era.27497
  • Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada
  • Bell, Wayne Ronald Victor
  • English
  • boreal
    surface water
    chemistry
  • Jul 26, 2010 8:38 PM
  • Thesis
  • English
  • Adobe PDF
  • 6218614 bytes
  • The Western Boreal Forest exhibits complex hydrogeology juxtaposed with rapid resource development. Predicting surface water chemistry to assess the influence of landuse and climate change is needed. The research purpose was to test if a global model (Gibbs), used to assess water chemistry relative to precipitation, geologic and evaporative processes can be applied to mid-continental locations; and test if regional to local scale controls of surface-groundwater interactions can be used to refine predictions where geologic processes dominate water chemistry. The global model applied to many ponds, but failed in dilute and saline ponds. Caution is necessary, as the model assumes chloride-dominated precipitation, and continental to regional scale groundwater systems influence water chemistry, independent of evaporative processes. Bedrock geology influenced ion composition, TDS and pH via mineral dissolution and scale of flow. Surficial geology influenced TDP, TDN, DOC, pH and TDS, and wetland connection influenced TDP, TDN and DOC via flowpath. To assess water chemistry and the influence of landuse and climate change, regional to local controls of surface-groundwater interactions prove valuable over the global assessment of chemistry in heterogeneous and complex landscapes.
  • Master's
  • Master of Science
  • Department of Biological Sciences
  • Fall 2010
  • Devito, Kevin (Biological Sciences)
  • Mendoza, Carl (Earth and Atmospheric Sciences)
    Bayne, Erin (Biological Sciences)
    Butterworth, Eric (Ducks Unlimited Canada)