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2014 Vol.1, Issue 2 Preview Page
Change of Fish Habitat in a Downstream Reach of a Stream Due to Dam Construction

댐 건설에 따른 하류 하도 어류 서식처 변화 분석

Seung Ki Kim1
,
Sung-Uk Choi2*
김 승기1
,
최 성욱2*
1Department of Civil and Environmental Engineering, Yonsei University, Seoul, Korea, Ph. D. candidate
2Department of Civil and Environmental Engineering, Yonsei University, Seoul, Korea, Professor
1연세대학교 대학원 토목환경공학과 석박사통합과정
2연세대학교 공과대학 토목환경공학과 교수
*교신저자. *Corresponding Author. 
2014. pp. 61-67
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Abstract

Dam construction changes flow regime and stream morphology in the downstream reach. These affect the ecosystem of downstream reach. This study provides the assessment of the impact of dam construction on the downstream fish habitat. For this, physical habitat simulations are carried out. The quasi-steady model is used for hydraulic simulation, The hydraulic model used in the present study is capable of simulating the morphological change due to sediment transport. The change of the fish habitat condition is investigated using the flow scenarios before and after the dam construction. Simulation results indicate that the habitat suitability decreases frequently due to hydropeaking after dam construction. In addition, erosion is expected to occur in a reach downstream of dam. This is a long term effect due to the shut-down of sediment supply from the upstream reach.

Keywords
Physical habitat simulation
Morphological change
Hydropeaking
Quasi-steady model
Habitat suitability index

댐의 건설은 유황의 변동과 유사의 흐름을 차단하기 때문에 하천의 수리학적 환경에 큰 영향을 미치게 된다. 본 연구의 목적은 댐의 건설이 댐 하류의 어류의 서식처에 미치는 영향을 분석하는 것이다. 이를 위해 준정류 모형이 흐름모의에 사용되었으며, 물리 서식처 분석을 위해 HSI 모형을 사용하였다. 본 연구에서 사용된 수리모형은 유사이송에 의한 이동상 모의가 가능하다. 유량 시나리오를 통해 댐 건설 전과 후의 피라미에 대한 어류 서식처 조건을 분석하였으며, 모의 결과 댐 건설 후 발전방류로 인하여 피라미의 서식처가 악화되는 빈도가 늘어났다. 또한 댐 하류로부터의 침식이 예측되었다. 이는 상류의 유사량 공급의 차단으로 인하여 나타나는 장기적인 변화이다.

키워드
물리 서식처 모의
하상변동
발전 방류
준정류 모형
서식처 적합도 지수
References
1
Bowen Z. H., Freeman M. C., and Bovee K. D. (1988) “Evaluation of Generalized Habitat Criteria for Assessing Impacts of Altered Flow Regimes on Warmwater Fishes.” Transactions of the American Fisheries Society, Vol. 123, No. 3, pp. 455-468.
2
Brandt, S. A. (2000). “Classification of geomorphological effects downstream of dams.” Catena, Vol. 40, No. 4, pp. 375-401.
3
Jang, C. L. and Shin, J. K. (2009). “Estimation of Ecological Instream Flow Considering the River Characteristics and Fish Habitat in the Downstream of Yongdam Reservoir.” Korean Journal of Limnology, Vol. 42, No. 3, pp. 374-381 (in Korean).
4
Kang, H., Im, D., and Kim, K. (2010). “Numerical Investigations of Physical Habitat Changes for Fish induced by the Hydropeaking in the Downstream River of Dam.” Journal of Korean Society of Civil Engineering, Vol. 30, No. 2B, pp. 211-217 (in Korean).
5
Kang H., Im D., Hur J.W., and Kim, K-.H (2011). “Estimation of Habitat Suitability Index of Fish Species in the Geum River Watershed.” Journal of the Korea Society of Civil Engineeres, Vol. 31, No. 2B, pp. 193- 203 (in Korean).
6
Kang, Y. H., Kim, S. K., Hong, G. B., and Kim, H. S. (2011). “Change of Fish Fauna and Community Structure in the Naeseong Stream around the Planned Youngju Dam.” Korean Journal of Limnology, Vol. 44, No. 2, pp. 226-238 (in Korean).
7
Kondolf, G. M. (1997). “PROFILE: hungry water: effects of dams and gravel mining on river channels.” Environ-mental management, Vol. 21, No. 4, pp. 533-551.
8
Korea Institute of Construction Technology (2013). “Analysis of change in river morphology and vegetation due to artificial structures.” KICT, p. 156 (in Korean).
9
Valentin S., Lauters F., Sabaton C., Breil P. and Souchon Y. (1996) “Modelling temporal variations of physical habitat for brown trout (Salmo trutta) in hydropeaking conditions.” Regulated Rivers: Research & Management, Vol. 12, pp. 317-330.
10
Wu, W., Wang, S. S., & Jia, Y. (2000). “Nonuniform sediment transport in alluvial rivers.” Journal of Hydraulic Research, Vol. 38, No. 6, pp. 427-434.
11
Yi Y., Wang Z. and Yang Z. (2010) “Impact of the Gezhouba and Three Gorges Dams on habitat suitability of carps in the Yangtze River.” Journal of Hydrology, Vol. 387, No. 3, pp. 283-291.
Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 1
  • No :2
  • Pages :61-67
  • DOI :https://doi.org/10.17820/eri.2014.1.2.061
Journal Informaiton Ecology and Resilient Infrastructure Ecology and Resilient Infrastructure
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