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Channel Morphology Below Reservoir Storage Projects

Published online by Cambridge University Press:  24 August 2009

Paul G. Buma  and
J. Chadwick Day
Paul G. Buma
Affiliation:
Department of Geography, University of Western Ontario, London, Ontario, Canada
J. Chadwick Day
Affiliation:
Associate Professor, Department of Geography, Faculty of Environmental Studies, Universitiy of Waterloo, Waterloo, Ontario, Canada.
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Extract

Reservoir storage projects are known to alter significantly the environmental settings in which they are established. Extensive data are required to assess quantitatively the physical effects of human interference with rivers. Methodologies must be developed to permit continual monitoring of such changes, so that environmental effects of storage projects may be considered in more integrated, comprehensive plans than hitherto for future river-development efforts.

This study documents stream-channel changes over a five-years period following reservoir completion at eight cross-sections on the main stream below a dam and on one tributary. Of eight main-stream sections, four are increasing in cross-sectional area, namely numbers one, five, six, and seven. Of these, the crosssectional area of numbers one and seven is increasing laterally and that of five and six is increasing vertically. The average annual degradation of sections five and six is 0.092 m over the study period, compared with an average of 0.031 m in the United States over the first 10–15 years after dam closure. Sections three, eight, and nine, are shitfing laterally without a crosssectional area increase, while of sections 2 and 4 the cross-sectional area remained largely unchanged.

Extraction of most of the sediment load by the new reservoir led to increased erosion of the stream channel below the dam. However, it is not always predictable whether the increased erosive power of released clearwater will induce the ongoing channel to erode its bed, widen its section, or cause the bed to move laterally. Nearly all of the nine Deer Creek study sections experienced one of these changes over the study period of five years.

Type
Research Article
Information
Environmental Conservation , Volume 4 , Issue 4 , Winter 1977 , pp. 279 - 284
Copyright
Copyright © Foundation for Environmental Conservation 1977

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References

Ackermann, N. L. & Sakthivadivel, R. (1968). River-bed degradation below dams. Proc. Am. Soc. Civ. Eng., Hyd. Div., 94, HYI, pp. 336–40, illustr.Google Scholar
Ackermann, W. C., White, G. F. & Worthington, E. B. (1973). Man-made Lakes: Their Problems and Environmental Effects. (Monograph 17.) American Geophysical Union, Washington, D.C.: xi + 847 pp., illustr.Google Scholar
Adams, J. (1938). The flora of Canada. Pp. 30–59 in The Canada Yearbook 1938. King's Printer, Ottawa, Ontario: xli + 1141 pp., illustr.Google Scholar
Beckinsale, R. P. (1972). The effect upon river channels of sudden changes in sediment load. Acta Geographica Debrecina, 10, pp. 181–6, illustr.Google Scholar
Buma, P. G. (1972). Channel Morphology Below Deer Creek Dam. B.A. thesis, Univ. of Western Ontario, London, Ontario: xiii + 73 pp., illustr. (typescr.).Google Scholar
Buma, P. G. (1975). Beta Diversity in the Plant Communities of a Flood Plain Vegetation Complex: An Exploratory Approach. M.Sc. thesis, Univ. of Western Ontario, London, Ontario: x + 190 pp., illustr. (mimeogr.).Google Scholar
Buma, P. G. & Day, J. C. (1975). Reservoir-induced plant community changes: a methodological exploration. J. of Envir. Management, 3, pp. 219–50, illustr.Google Scholar
Cruise, J. E. (1969). A floristic study of Norfolk County, Ontario. Trans. R. Can. Instit., 35, 116 pp., illustr.Google Scholar
Day, J. C. (1970). Managing the Rio Grande: An Experience in International River Basin Development. (Research paper 125.) Department of Geography, University of Chicago, Chicago, Illinois: xii + 274 pp., illustr.Google Scholar
Day, J. C. (1974). Benefit-cost assessment and multiple-purpose reservoirs: a reassessment of the Conservation Authorities' Branch, Deer Creek Project, Ontario. Pp. 23–34 in Priorities in Water Management, Western Geographical Series, Vol. 8, University of Victoria, Victoria, B.C.: pp. xvi + 300, illustr.Google Scholar
Gill, D. (1973). Modification of northern alluvial habitats by river development. Can. Geogr., 17, pp. 138–53, illustr.CrossRefGoogle Scholar
Hagan, R. M. & Roberts, E. B. (1972). Ecological impacts of water projects in California. Jour. of the Irrigation and Drainage Division, Am. Soc. Civil Engineers, 98, IR1, Paper 8780, pp. 25–48.Google Scholar
Hammad, H. Y. (1972). River-bed degradation after closure of dams. Proc. Am. Soc. Civ. Eng., 98, Paper 8814, HY4, pp. 591–607, illustr.Google Scholar
Hume, L. & Day, J. C. (1974). The determination of an efficient sampling intensity for studying Beta diversity in plant communities. Can. J. Bot., 52, pp. 189–99, illustr.Google Scholar
Kerr, J. A. (1973). Physical consequences of human interference with rivers. Pp. 32–64 in 9th Canadian Hydrology Symposium, Fluvial Processes and Sedimentation. University of Alberta, Edmonton, Alberta: 959 pp., illustr.Google Scholar
Komura, S. & Simmons, D. B. (1967). River-bed degradation below dams. Proc. Am. Soc. Civ. Eng., 93, Paper 5335, HY4, pp. 1–14, illustr.Google Scholar
Lane, E. W. (1934). Retrogression of levels in river-beds below dams. Engineering News Record, 112, 06 28, pp. 836–8.Google Scholar
Leopold, L. B., Wolman, M. G. & Miller, J. P. (1964). Fluvial Processes in Geomorphology. Freeman, San Francisco, California: xiii + 522 pp., illustr.Google Scholar
Macoun, J. & Malte, M. O. (1916). The flora of Canada. Pp. 42–55 in The Canada Yearbook 1915, King's Printer, Ottawa, Ontario: xvi + 707 pp., illustr.Google Scholar
Merriam, C. H. (1898). Life Zones and Crop Zones of the United States. U.S. Dept Agric. Div. Biol. Surv. Bull. No. 10, Washington, D.C.: ii + 79 pp.Google Scholar
Oliver, P. A. (1963). Some economic considerations in river control work. U.S. Dept Agric. Mis. Pub. 970, Paper 51, pp. 442–9, illustr.Google Scholar
Reinelt, E. R., Kellerhals, R., Molot, M. A., Schultz, W. M. & Stevens, W. E. (1971). Proceedings of the Peace-Athabasca Delta Symposium. University of Alberta, Edmonton, Alberta: xvi + 359 pp., illustr.Google Scholar
Shulits, S. (1934). Experience with bed degradation below dams on European rivers. Engineering News Record, 112, 06 28, pp. 838–9.Google Scholar
Task Committee [for Preparation of Manual on Sedimentation] (1969). Chapter 6: Economic Aspects of Sedimentation. Pp. 199–207 in Sedimentation Engineering (Proc. Am. Soc. Civ. Eng., 95, Paper 6334, HY1, pp. 191–207, illustr.).Google Scholar
Williams, O. O. (1968). Reservoir effect on downstream water temperatures in the Upper Delaware River Basin. U.S. Geol. Survey Prof. Paper 600–B, pp. 195–9, illustr.Google Scholar
Wolman, M. G. (1967). Two problems involving river channel changes and background observations. Pp. 67–107 in Quantitative Geography, Part II: Physical and Quantitative Topics. Studies in Geography No. 14, Northwestern University, Evanston, Illinois: iii + 324 pp., illustr.Google Scholar