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http://dx.doi.org/10.17820/eri.2019.6.3.145

A Study on the Improvement of Fish Habitat through Various River Restoration Techniques in the Wonju-cheon Stream, Korea  

Kim, Jongjoo (Department of Civil Engineering, Sangji University)
Choi, Jonggeun (Department of Civil Engineering, Sangji University)
Choi, Heung Sik (Department of Civil Engineering, Sangji University)
Publication Information
Ecology and Resilient Infrastructure / v.6, no.3, 2019 , pp. 145-153 More about this Journal
Abstract
The present study performed the impact of the change of low-flow channel on aquatic habitat in a reach of the Wonju-cheon Stream, Korea. The target species was Zacco platypus, a dominant species in the middle- and upper-stream of Wonju Cheon. The River2D model was used for the computation of the flow and the habitat suitability index model was used to estimate the quantity and quality of fish habitat using habitat suitability curves. First, for the restoration to low-flow channel, the restoration was conducted in a form close-to-nature flow channel, and the width of the low-flow channel was expanded and reduced. The results indicated that the Weighted Usable Area (WUA) of the target species improved by about 72% when the width of the low-flow channel was expanded, and that the fish habitat decreased by about 25% when the width of the low-flow channel was reduced.
Keywords
Change of low-flow channel; Close-to-nature flow channel; Dominant species; Physical habitat simulation; Weighted usable area;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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