CGRG Bibliography of Canadian Geomorphology
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Author : Bryan, R.B.; Imeson, A.C.; and Campbell, I.A.
Date : 1984
Title : Solute release and sediment entrainment on microcatchments in the Dinosaur Park Badlands, Alberta, Canada
Publication : Journal of Hydrology
Issue : 71(1-2):
Page(s) : 79-106
Abstract
The uptake of solutes and entrainment of sediments in runoff generated by simulated rainstorms on different badland surfaces, and the properties of the regolith materials related to solute uptake are described and studied in a number of simple laboratory experiments. Field and laboratory results are in close agreement. Runoff, solute and sediment uptake are profoundly influenced by the large amounts of sodium montmorillonite present in the regolith. Shale surfaces, although responding late to rainfall, release increasing amounts of sediment and solutes (sodium and sulfate) as they swell and increase in erodibility. On other surfaces low rates of rainfall acceptance are caused by the secretion of montmorillonite gels, and there is a gradual decrease in solute and sediment concentration as accumulated salts are flushed from the surface. The effect of the chemistry of the simulated rainfall on the experiment results is examined. It is considered possible to characterize the pattern of solute and sediment uptake on the different badland surfaces and to apply this information to the identification of runoff sources in mesoscale drainage basins and to the routing of storm runoff.
Bibliography of Canadian Geomorphology