River - Sediment Yield

Sediment Yield

Sediment yield is the total quantity of particulate matter (suspended or bedload) reaching the outlet of a drainage basin over a fixed time frame. Yield is usually expressed as kilograms per square kilometre per year. Sediment delivery processes are affected by a myriad of factors such as drainage area size, basin slope, climate, sediment type (lithology), vegetation cover, and human land use / management practices. The theoretical concept of the 'sediment delivery ratio' (ratio between yield and total amount of sediment eroded) captures the fact that not all of the sediment eroded within a catchment reaches the outlet (due to, for example, deposition on floodplains). Such storage opportunities are typically increased in catchments of larger size, thus leading to a lower yield and sediment delivery ratio.

Read more about this topic:  River

Famous quotes containing the word yield:

    We devastate them unreligiously,
    And coldly ask their pottage, not their love.
    Therefore they shove us from them, yield to us
    Only what to our griping toil is due;
    But the sweet affluence of love and song,
    The rich results of the divine consents
    Of man and earth, of world beloved and lover;
    The nectar and ambrosia, are withheld.
    Ralph Waldo Emerson (1803–1882)