Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Management Plan of Whooper Swan(Cygnus cygnus) Habitat Using Causal Loop Analysis : Focused on Eulsukdo

인과순환구조 분석을 통한 큰고니 서식환경 유지방안 -을숙도를 중심으로-

  • Choi, Yun Eui (Dept. of Environmental Science and Ecological Engineering, Graduate School, Korea Univ.) ;
  • You, Soojin (Dept. of Environmental Science and Ecological Engineering, Graduate School, Korea Univ.) ;
  • Kang, Sung-Ryong (National Institute of Ecology) ;
  • Choi, Byoungkoo (Division of Forest Science, Kangwon National Univ.) ;
  • Chon, Jinhyung (Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea Univ.)
  • 최윤의 (고려대학교 대학원 환경생태공학과) ;
  • 유수진 (고려대학교 대학원 환경생태공학과) ;
  • 강성룡 (국립생태원 기초생태연구본부) ;
  • 최병구 (강원대학교 산림과학부) ;
  • 전진형 (고려대학교 환경생태공학부)
  • Received : 2015.02.27
  • Accepted : 2015.05.27
  • Published : 2015.06.30
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Abstract

The goal of this study is to analyze the feedback structure of habitat changes of the Whooper Swan in Eulsukdo using system thinking to suggest a management plan for ecosystem health. Using the causal loop diagrams of population changes between Whooper Swan and other bird species in Eulsukdo, we found that the environmental changes in the roosting and foraging area affect the Whooper Swan's population. The causal loop diagrams of the Whooper Swan's roosting area indicated that the environmental changes (e.g., water level, noise, bird watching, and other experience activities) may influence their population density variation. In addition, the casual loop diagrams of the Whooper Swan's foraging area showed that the Whooper Swan's population was affected by various variables that included area factors such as surface area of freshwater, frozen water, salinity, and density of Scirpus planiculmis. Furthermore, through the integrated causal loop diagram, cumulative discharge of Nakdong estuary weir and building activities were identified as the variables that affect the population of the Whooper Swan. Thus, we selected this area as the strategic point to establish a management plan for the Whooper Swan's habitat. The results of this study will help in decision making of a long-term management plan for sustaining the environmental health of the ecosystem in Eulsukdo.

본 연구에서는 을숙도 큰고니 서식지의 생태계 건강성 유지방안을 마련하기 위하여 시스템 사고를 통해 큰고니 서식환경 변화 현상에 대한 피드백 구조를 분석하였다. 을숙도 내 큰고니와 기타 수조류의 개체수에 대한 인과지도를 통해 을숙도 큰고니 개체수는 휴식환경 및 먹이환경 변화와 관계가 있음을 확인하였다. 큰고니의 휴식환경 인과지도에서는 탐조 및 탐방활동, 수위, 소음에 의한 휴식환경 변화가 큰고니 개체수에 영향을 미치는 것을 확인하였으며, 큰고니의 먹이환경 인과지도를 통해 담수의 면적, 수면동결, 을숙도 염분, 새섬매자기 밀도에 의한 먹이환경 변화가 큰고니 개체수에 영향을 미치는 것으로 확인 하였다. 마지막으로 통합인과지도를 통해 낙동강하굿둑 방류량과 건설행위가 큰고니의 휴식환경과 먹이환경에 영향을 미치는 변수임을 파악하였으며 큰고니 서식환경 관리를 위한 전략지점으로 선정하여 관리방안을 제시하였다. 연구의 결과는 장기적 관점에서 을숙도의 생태계 건강성을 유지를 위한 관리방안마련에 기여할 것이다.

Keywords

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