Solute pathways in surface and subsurface waters of wetland S109, St.Denis, Saskatchewan / David F. Parsons
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TextPublication details: Calgary, AB : University of Calgary, 2001.Description: x, 84 leaves : ill. ; 29 cmOnline resources: Abstract: A bromide tracer was introduced to the central pond of slough 109 at St.Denis, Saskatchewan in April 1999. For the next two years bromide distribution in surface water and groundwater, and groundwater flow directions were investigated in order to delineate subsurface solute pathways and to characterize chemical evolution of the pond. Water samples from piezometers and pond water, and pore water extracts from soil samples reveal that bromide mostly stays within the top metre of sediment beneath the pond and concentrates under the pond edges. Upon infiltration, water and solute from the pond take a shallow, lateral path toward pond edges, along the principal directions of groundwater flow, and follows near-surface, high-permeability soil horizons. This movement is driven by root uptake by trees and marginal pond vegetation.During the spring and summer of 1999, bromide levels in the pond decreased as water level decreased due to the occurrence of heavy rains in June and July. Mass bala
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Thesis(M.Sc.)--University of Calgary, 2001.
Includes bibliographical references (leaves 62-65).
A bromide tracer was introduced to the central pond of slough 109 at St.Denis, Saskatchewan in April 1999. For the next two years bromide distribution in surface water and groundwater, and groundwater flow directions were investigated in order to delineate subsurface solute pathways and to characterize chemical evolution of the pond. Water samples from piezometers and pond water, and pore water extracts from soil samples reveal that bromide mostly stays within the top metre of sediment beneath the pond and concentrates under the pond edges. Upon infiltration, water and solute from the pond take a shallow, lateral path toward pond edges, along the principal directions of groundwater flow, and follows near-surface, high-permeability soil horizons. This movement is driven by root uptake by trees and marginal pond vegetation.During the spring and summer of 1999, bromide levels in the pond decreased as water level decreased due to the occurrence of heavy rains in June and July. Mass bala