Rates of soil redistribution associated with Soil Zones and slope classes in southern Saskatchewan
de Jong, E.
Using 137Cs redistribution techniques we examined the relationship between mean rates of soil redistribution and average slope characteristics at twenty-one areas in the Brown, Dark Brown, and Black Chernozem Soil Zones of southern Saskatchewan. Net soil losses averaged 5.8 t ha-1 yr-1 for areas with mean gradients between 0 and 1.5°, 7.8 t ha-1 yr-1 for areas with mean gradients between 1.0 and 3°, and 11.3 t ha-1 yr-1 for areas with mean gradients between 3.5 and 8.5°. For all three slope classes, the highest rates of soil loss were found in the Dark Brown soil zone and the lowest rates in the Black Soil Zone. Net soil loss alone was, however, an inadequate indicator of the rate of loss within the areas because a considerable proportion of eroded soil was deposited within the confines of the study areas.
Soils and Crops Workshop