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fluvial processes
fluvial processes The set of mechanisms that operate as a result of water flow within (and at times beyond) a stream channel, bringing about the erosion, transfer, and deposition of sediment. The erosional processes include: the displacement of bed particles through drag and lift forces; abrasion, causing the wearing away of bed and banks as mobile sediment is dragged against them; and bank collapse, a consequence of hydraulic activity. Transport processes include the transfer of material in solution and suspension, and by saltation. Depositional processes act when the immersed weight of a particle is greater than the force driving it down-channel.
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Cite this article
MICHAEL ALLABY. "fluvial processes." A Dictionary of Ecology. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "fluvial processes." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O14-fluvialprocesses.html MICHAEL ALLABY. "fluvial processes." A Dictionary of Ecology. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-fluvialprocesses.html |
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fluvial processes
fluvial processes The set of mechanisms that operate as a result of water flow within (and at times beyond) a stream channel, bringing about the erosion, transfer, and deposition of sediment. The erosional processes include: the displacement of bed particles through drag and lift forces; corrasion, the wearing away of bed and banks as mobile sediment is dragged against them; and bank collapse, a consequence of hydraulic activity. Transport processes include the transfer of material in solution and suspension, and by saltation. Depositional processes act when the immersed weight of a particle is greater than the force driving it down-channel.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "fluvial processes." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "fluvial processes." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-fluvialprocesses.html AILSA ALLABY and MICHAEL ALLABY. "fluvial processes." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-fluvialprocesses.html |
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