Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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The Intertidal Restoration and Relationship with Water birds According to Before and After Operation of Sihwa Lake Tidal Power Plant

시화호 조력발전소 가동 전·후 조간대 복원과 수조류와의 관계

  • Received : 2016.03.31
  • Accepted : 2016.04.06
  • Published : 2016.06.30
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Abstract

Intertidal zone has been restored by the Sihwa Lake tidal power plant is operating in 2012. After restoration, to check the difference of bird group's community change out, the examination has been carried out from 2009 to 2014 when sea dike sluicer runs, the intertidal zone area was increased to $20.3km^2$ after restoring in $5.3km^2$. There was no significant difference in the number of individuals congestion of the whole, but the results of analysis of the differences between the six bird group by number of individuals, it showed a significant difference in Diving ducks(p = 0.237) the Herons (p<0.001), Swans and Geese (p<0.01), Dabbling ducks (p<0.001), showed a significant difference in the Shore birds (p<0.001) gulls (p<0.001) except for diving of ducks. Sihwa Lake intertidal zone was only just been restored, but environment and the improvement of benthic ecosystem has been carried out, It is determined that waterfowls that living based on intertidal zone are also affected. This study is a good example of the restoration of the intertidal zone that disappeared, which hard to find a similar case. It will be utilized as basic data of ecological monitoring for the conservation and management of the future of the intertidal zone later.

2012년 시화호 조력발전소가 가동됨에 따라 조간대가 복원되었다. 복원 후 물새 분류군별 개체수 변동의 차이를 알아보고자 2009년부터 2014년까지 조사가 수행되었다. 복원 전 배수갑문 운영시 조간대 면적은 $5.3km^2$에서 복원 후 $20.3km^2$로 늘어났다. 전체 조류개체수 군집에는 큰 차이가 없었으나 6개 분류군별 개체수 차이를 분석한 결과 잠수성 오리류(p=0.237)를 제외한 백로류(p<0.001), 고니기러기류(p<0.01), 수면성오리류(p<0.001), 도요물떼새류(p<0.001) 갈매기류(p<0.001)에서 유의한 차이를 나타냈다. 시화호 조간대는 복원된 지 얼마 지나지 않았지만 환경 및 저서생태계의 개선이 이루어지고 있으며, 조간대 지역을 기반으로 살아가는 수조류의 서식지 이용에 긍정적 영향을 미친 것으로 판단된다. 본 연구는 사라졌던 조간대가 다시 복원된 유례가 없는 사례이며 향후에는 유사한 환경에서의 생물다양성 유지를 위한 대안의 한 방법으로도 고려될 수 있을 것이다.

Keywords

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