Journal of the Korean Society of Environmental Restoration Technology (한국환경복원기술학회지)

The Korea Society of Environmental Restoration Technology (한국환경복원기술학회)
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Population Changes of Suaeda Japonica in the Saemangeum Reclaimed Land

새만금 간척지 내 칠면초 개체군의 변화

  • Kim, Chang-Hwan (Department of Environment Landscape Architecture-Design, Chonbuk National University) ;
  • Choi, Young-Eun (Division of Biotechnology, Graduate School of Chonbuk National University) ;
  • Lee, Nam-Sook (Department of Ecology Landscape Architecture-Design, Graduate School of Chonbuk National University)
  • 김창환 (전북대학교 환경조경디자인학과) ;
  • 최영은 (전북대학교 대학원 생명공학과) ;
  • 이남숙 (전북대학교 대학원 생태조경디자인학과)
  • Received : 2009.12.02
  • Accepted : 2010.05.31
  • Published : 2010.06.30
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Abstract

본 연구는 칠면초의 분포역을 결정짓는 개체수의 변화와 성장 변화를 분석하고자 6개 조사역 18 Site에서 2006~2008년의 3년간 개체수 변화, 지상부길이 생장변화, 토양요인의 변화를 조사하였다. 칠면초의 개체수 변화는 간척으로 인한 해수유입의 급격한 감소가 저위 염습지의 수분공급이 원활하지 못한 환경을 조성하여 2008년도 8월 이후에 급격히 감소하는 영향을 나타냈다. 길이 생장변화 역시 강수, 해수유입 감소 등에 의한 탈염이 큰 영향을 미친 것으로 조사되었다. 특히 토양요인의 변화에서 칠면초의 개체수 및 길이생장에 $EC_{1:5}dS/m$가 가장 큰 영향을 미친 것으로 나타났다. 새만금 만경강 하구역 갯벌 염습지는 새만금 간척사업으로 인한 해수유입의 급격한 감소와 담수의 유량변화에 따른 수위변동 등의 환경요인에 의하여 간척사업이전 우점종인 칠면초의 분포역과 생장에 큰 영향을 미쳤다.

Keywords

References

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