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<br />3. Lane Relation <br /> <br />as (X as 050 <br /> <br />where <br /> <br />a <br />S <br />as <br />050 = <br /> <br />= Water discharge <br />= Energy slope (or bed slopE~) <br />= Sediment discharge (or supply) <br />Median sediment size <br /> <br />IV. SEDIMENT CONCEPTS <br /> <br />A. Sediment continuity con(:ept. <br /> <br />1. Distinction between sediment transport capal:ity and sediment <br />supply. <br /> <br />Sediment supply is primarily that sediment provlided to the channel <br />from watershed, tributary inflow, and the channel bed and banks. <br />Sediment transport capacity can be considered the actual physical <br />capability of the channel to transport sediment, as defined by flow <br />conditions. Transport capacity is a function of the size elf bed <br />material, flow rate, ;and geometric and hydraulic pmperties of the <br />channel. <br /> <br />2, Transport capacity is generally proportional to the water discharge <br />to the 1 to 2 power and to velocity to the 3 to 5 power. <br /> <br />3, Definition of sediment continuity (sE!efigure), <br /> <br />2,17 <br />