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Water Science and Engineering 2011, 4(4) 386-395 DOI:   10.3882/j.issn.1674-2370.2011.04.003  ISSN: 1674-2370 CN: 32-1785/TV

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zz')" href="#"> stream restoration
physical habitatzz')" href="#"> physical habitat
weighted usable areazz')" href="#"> weighted usable area
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Article by Hyeongsik,.K

Two-dimensional physical habitat modeling of effects of habitat structures on urban stream restoration

Dongkyun IM1, Hyeongsik KANG*2

1. Water Infrastructure Division, Samsung C & T Corporation, Seoul 1321-20, Korea
2. Division of Water and Environment, Korea Environment Institute, Seoul 122-706, Korea


River corridors, even if highly modified or degraded, still provide important habitats for numerous biological species, and carry high aesthetic and economic values. One of the keys to urban stream restoration is recovery and maintenance of ecological flows sufficient to sustain aquatic ecosystems. In this study, the Hongje Stream in the Seoul metropolitan area of Korea was selected for evaluating a physically-based habitat with and without habitat structures. The potential value of the aquatic habitat was evaluated by a weighted usable area (WUA) using River2D, a two-dimensional hydraulic model. The habitat suitability for Zacco platypus in the Hongje Stream was simulated with and without habitat structures. The computed WUA values for the boulder, spur dike, and riffle increased by about 2%, 7%, and 131%, respectively, after their construction. Also, the three habitat structures, especially the riffle, can contribute to increasing hydraulic heterogeneity and enhancing habitat diversity.

Keywordszz')" href="#">  stream restoration   physical habitatzz')" href="#"> physical habitat   River2D   weighted usable areazz')" href="#"> weighted usable area  
Received 2011-02-24 Revised 2011-09-09 Online: 2011-12-30 
DOI: 10.3882/j.issn.1674-2370.2011.04.003
Corresponding Authors: Hyeongsik KANG
Email: hskang@kei.re.kr
About author:


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