Water Stewardship Information Sources

ID 1268
Citation Millar, RG and Eaton, BC. 2011. Bank vegetation, bank strength, and application of the university of British Columbia regime model to stream restoration. In: Stream restoration indynamic fluvial systems: Scientific approaches, analyses and tools. Geophysical Monographs Series 194. American Geophysical Union.
Organization UBC
URL http://www.agu.org/books/gm/v194/2010GM000989/2010GM000989.pdf
Abstract/Description or Keywords The University of British Columbia Regime Model (UBCRM) is based on
rational regime theory. A feature of the model is that it quantifies the effect of bank
vegetation and its effect on channel geometry. Three bank vegetation models can be
applied to gravel bed rivers with either noncohesive, cohesive, or composite banks.
Simplified dimensionless equations for width and slope derived using the UBCRM
are applied to a site on the Coldwater River, British Columbia. Between 1953 and
2003, there were significant land use changes that included riparian and floodplain
clearing. The observed widening and steepening can be explained by a reduction in
bank strength and that changes in the sediment load, discharge, or grain size do not
appear to be significant. Applied correctly, the UBCRM can provide qualitative and
quantitative insight into the primary causes of historic disturbance and can serve as
an aid in restoration design. Because of the physically based nature of the parameters
in the UBCRM, analysis and design are directly linked to fluvial processes
including flow resistance, sediment transport, and bank stability.
Information Type report
Regional Watershed Nicola
Sub-watershed if known Coldwater River
Aquifer #
Comments
Project status complete
Contact Name Brett Eaton
Contact Email [email protected]