000 02202cam  2200361za 4500
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008171030s1997    onca|||fo    f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aEn13-5/97-70E-PDF
1001 |aLau, Y. L.
24510|aInception of sediment transport on steep slopes |h[electronic resource] : |bpreliminary report / |cY. Lam Lau and Peter Engel.
260 |aBurlington, Ont. : |bAquatic Ecosytem Protection Branch, National Water Research Institute, |c[1997].
300 |av, 10, [4] p. : |bill.
4901 |aNWRI contribution ; |v97-70
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references.
5203 |a"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.
546 |aAbstracts in English and French.
69207|2gccst|aRivers
69207|2gccst|aSediments
69207|2gccst |aEnvironmental management
7001 |aEngel, Peter, |d1938-
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 97-70|w(CaOODSP)9.844121
85640|qPDF|s735 KB|uhttps://publications.gc.ca/collections/collection_2017/eccc/En13-5-97-70-eng.pdf