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Hart, D.D., Johnson, T.E., Bushaw-Newton, K.L., Horwitz, R.J., Bednarek, A.T., Charles, D.F., Kreeger, D.A. and Velinsky, D.J. (2002) Dam Removal: Challenges and Opportunities for Ecological Research and River Restoration. BioScience, 52, 669-682.
https://doi.org/10.1641/0006-3568(2002)052[0669:DRCAOF]2.0.CO;2
has been cited by the following article:
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TITLE:
Effects of Influential Parameters on Long-Term Channel Evolution Following Low-Head Dam Construction and Removal
AUTHORS:
Sinae Kim, Yuji Toda
KEYWORDS:
Low-Head Dam, Dam Construction, Dam Removal, Channel Evolution, Influential Parameter
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.10 No.8,
August
20,
2018
ABSTRACT: The long-term existence of dam structures significantly modified the river channel. In accordance with a drastic increase of low-head dams under consideration for removal in recent years, it is important to predict the effects of low-head dam removal from the modified river channel by the low-head dam construction. This study intends to investigate the long-term channel evolution process following low-head construction and removal and to find out the influential parameters (sediment diameter, river bed slope, dam height) for those channel evolution by two-dimensional numerical simulation model. Following the low-head dam construction, sediment deposition rates in upstream of the low-head dam are varied with the influential parameters. The sediment deposition rates and sandbar formation with riparian vegetation settlement on sandbars have significantly affected for channel evolution following low-head dam removal. Especially the knickpoint formation and the types of vegetation (grass type and tree type) on the sandbars are critical factors for channel evolution following low-head dam removal. Through the numerical simulation results of low-head dam construction (50 years) and low-head dam removal (50 years), it is identified that the modified river channel by low-head dam may not be easily restored to pre-dam conditions following its removal especially in river geomorphology and riparian vegetation. Consequently, this study found that the reversibility following low-head dam construction and removal depends on the sediment deposition rates in upstream of the low-head dam.