00000nam 2200000za 4500 9.846361 CaOODSP 20241203113640 cr ||||||||||| 171030s1997 onca|||fo f000 0 eng d CaOODSP eng eng fre n-cn--- En13-5/97-70E-PDF Lau, Y. L. Inception of sediment transport on steep slopes [electronic resource] : preliminary report / Y. Lam Lau and Peter Engel. Burlington, Ont. : Aquatic Ecosytem Protection Branch, National Water Research Institute, [1997]. v, 10, [4] p. : ill. NWRI contribution ; 97-70 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Effective aquatic ecosystem protection requires better understanding of the sediment transport process at the bed of steep streams. Movement of gravel and the intrusion of sediment fines into the gravel bed greatly restrict transport of dissolved oxygen into and through the bed substrate. The ability of interstitial water flow to sustain substrate organisms and remove metabolic waste is thus reduced. These factors have significant implications for maintaining river habitat functions and point to the importance of continuing research on physical river processes. This report shows that present knowledge on the beginning of sediment transport in steep gravel bed needs to be expanded to provide design information for channel maintenance and management over a wide range of practical flow conditions"--Management perspective, p. i. Abstracts in English and French. gccst Rivers gccst Sediments gccst Environmental management Engel, Peter, 1938- Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 97-70 (CaOODSP)9.844121 PDF 735 KB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-97-70-eng.pdf