Toward a uniform theory of clastic sediment yield in fluvial systems

Research Article| December 01, 2000 Toward a uniform theory of clastic sediment yield in fluvial systems Roger LeB. Hooke Roger LeB. Hooke 1Department of Geological Sciences and Institute for Quaternary Studies, University of Maine, Orono, Maine 04469-5790, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Roger LeB. Hooke 1Department of Geological Sciences and Institute for Quaternary Studies, University of Maine, Orono, Maine 04469-5790, USA Publisher: Geological Society of America Received: 29 Jan 1999 Revision Received: 01 Feb 2000 Accepted: 04 Feb 2000 First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2000) 112 (12): 1778–1786. https://doi.org/10.1130/0016-7606(2000)112<1778:TAUTOC>2.0.CO;2 Article history Received: 29 Jan 1999 Revision Received: 01 Feb 2000 Accepted: 04 Feb 2000 First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Roger LeB. Hooke; Toward a uniform theory of clastic sediment yield in fluvial systems. GSA Bulletin 2000;; 112 (12): 1778–1786. doi: https://doi.org/10.1130/0016-7606(2000)112<1778:TAUTOC>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Sediment is delivered to streams by creep, slope wash, rill and gully erosion, and collapse of oversteepened banks. The first three of these operate on all transport-limited slopes. Their efficacy varies directly with precipitation (or runoff) and inversely with vegetation cover. Sediment yield from these processes is also likely to increase with slope angle and, in the case of slope wash and rill erosion, with rainfall intensity and slope length.Sloughing from oversteepened banks, however, occurs where rivers are actively cutting into valley sides. The frequency of occurrence of such locations increases with the mean slope angle, and the frequency of collapse increases with runoff. Thus, this process is likely to be dominant in mountainous areas with high runoff.Expressing these effects analytically leads to a tentative general relation for specific sediment yield. If we had sufficient knowledge of the various parameters involved, this relation could be integrated over a basin to obtain the total yield. At present, however, its main value is to draw attention to the numerous assumptions implicit in many much simpler equations in common use. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.