Sediment yields from intermediate-sized stream basins in southern Alberta

摘要: Abstract Suspended sediment yields were determined for 36 basins and dissolved 21 intermediate-sized stream in southern Alberta, Canada. Calculation of long term mean loads was based upon the establishment rating-curves gauging stations at basin outlets construction a duration curve from rating flow curves. Mean yearly suspended export ranged 12.55 tons/sq. mile to 576.9 with 58% yielding less than 200 mile. These rates are close agreement values reported by others western Dissolved 0.89 286.6 per year 50% catchments contributing 50 year. Relationships between geomorphic hydrologic variables subjected regression analysis. Highly significant relationships established yields, unit discharge, annual local relief, elevation land slope. slope discharge which gave highest correlation coefficients. Predictive equations developed allow be ungauged catchments.