The DOI matches its Crossref record.
Effect of Riparian Vegetation on Flow Resistance and Flood Potential
Abstract
An existing hydraulic model is modified to predict stage-discharge curves for channels with nonuniform cross sections, sand and gravel-bed materials, and flexible or nonflexible riparian vegetation. The model is based on a version of the flow momentum and continuity equations that account for lateral shear. The model accounts for the effects of vegetation using empirically calibrated flow resistance equations that incorporate measurable physical properties of vegetation. Separate flow resistance equations are used for flexible and nonflexible vegetation types. Simulated stage-discharge curves are compared with data obtained from three natural river channels. Discrepancies between simulated and observed data range between 2 and 45%, but most (∼70%) discrepancies were <15%. Sensitivity tests are performed to determine the effects of different types of riparian vegetation on friction factor and flood elevation. Surfaces covered by nonflexible vegetation are rougher than those covered with flexible riparian vegetation. Based on simulations at the three study sites, operational maintenance regimes are proposed that minimize flood risk, while maximizing the environmental benefits of a well-developed riparian vegetation cover.
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In the citing paper
“During overbank flow, the hydraulic roughness of above-ground stems and branches of floodplain plant communities reduces water velocities and enhances the deposition of fine sediment and organic matter (Sedell and Beschta, 1991;Darby, 1999;Gyssels and Poesen, 2003;Smith, 2004).”
From River channel dynamics following extirpation of wolves in northwestern Yellowstone National Park, USA (2006) · cites this paper as Darby, 1999
In the citing paper
“During periods of high flow, the hydraulic roughness imparted by above-ground stems and branches of riparian vegetation reduce water velocities, thereby retarding riverbank erosion and enhancing the deposition of fine sediment and organic matter on floodplains (Darby 1999; Gyssels and Poesen 2003; Smith 2004).”
From A Century of Overabundant Ungulates in Yellowstone’s Lamar Valley: First Elk and Now Bison (2026) · cites this paper as Darby 1999
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On inducing equations for vegetation resistance
Baptist, M. J., Babovic, V., Rodríguez Uthurburu, J., Keijzer, M., Uittenbogaard, R. E., Mynett, A., & Verwey, A. (2007) · Journal of Hydraulic Research · doi:10.1080/00221686.2007.9521778 · Cited by 484
Beschta, R. L., & Ripple, W. J. (2006) · Earth Surface Processes and Landforms · doi:10.1002/esp.1362 · Cited by 86
A Century of Overabundant Ungulates in Yellowstone’s Lamar Valley: First Elk and Now Bison
Beschta, R. L., Ripple, W. J., & Kauffman, J. B. (2026) · Environmental Management · doi:10.1007/s00267-026-02505-1
“…of high fl ow, the hydraulic roughness imparted by above-ground stems and branches of riparian vegetation reduce water velocities, thereby retarding riv-erbank erosion and enhancing the deposition of fi ne sediment and organic matter on fl oodplains (Darby 1999; Gyssels and Poesen 2003; Smith 2004).”
Metadata
- Authors
- Darby, S. E.
- Affiliations
- Lect., Dept. of Geography, Univ. of Southampton, Highfield, Southampton SO17 1BJ, U.K.
- Venue
- Journal of Hydraulic Engineering
- Published
- 1999
- References
- 0
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
