한국환경생태학회지 (Korean Journal of Environment and Ecology)

  • 제35권3호
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  • Pages.237-255
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  • 2021
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  • 1229-3857(pISSN)
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  • 2288-131X(eISSN)
한국환경생태학회 (Korean Society of Environment and Ecology)
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습지 전문종인 제비동자꽃(Lychnis wilfordii (Regel) Maxim.) 개체군의 내적동태

Internal Dynamics of Wetland Specialist, Population of Lychnis wilfordii (Regel) Maxim.

  • 채현희 (강릉원주대학교 생물학과) ;
  • 김영철 (강릉원주대학교 자연과학연구소) ;
  • 곽명해 (국립생물자원관 식물자원과) ;
  • 남기흠 (국립생물자원관 식물자원과)
  • Chae, Hyun-Hee (Graduate School of Biology, Gangneung-Wonju National University) ;
  • Kim, Young-Chul (Research Center for Natural Science, Gangneung-Wonju National University) ;
  • Kwak, Myoung-Hai (Plants Resource Division, Biological Resources Research Department, National Institute of Biological Resource) ;
  • Nam, Gi-Heum (Plants Resource Division, Biological Resources Research Department, National Institute of Biological Resource)
  • 투고 : 2021.03.10
  • 심사 : 2021.05.20
  • 발행 : 2021.06.30
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초록

제비동자꽃(Lychnis wilfordii (Regel) Maxim.)은 주로 고위도의 이탄습지에 분포하는 전문종이다. 우리나라에서는 2개 지역에 고립되어 분포한다. 본 연구에서는 생육지 특성, 생장특성 및 자가화합성 그리고 안정적인 개체군을 유지하고 있는 용늪습지보호지역에서 개체군의 지속에 관여하는 내적 동태를 평가하였다. 분포지의 식생환경은 용늪습지보호지역과 평창군 대관령면 분포지 사이에 뚜렷한 차이가 있었다. 화분매개충의 방문에 의해 종자의 생산이 촉진되기는 하지만 자가화합성을 함께 소유하였다. 토양의 유기물함량이 높은 조건에서 다수의 겨울눈을 생성하였고, 줄기 수, 열매 수가 최대에 달하였다. 그렇지만 유기물함량이 낮은 조건에서도 생장하고 개화하여 종자를 생산하였다. 용늪습지보호지역에서 제비동자꽃은 고층습원에는 분포하지 않았고 뚝사초가 형성하는 사초기둥이 발달한 저층습원에 분포하였다. 제비동자꽃은 이 공간에서도 사초기둥의 상단부에 주로 분포하였다. 따라서 뚝사초가 형성하는 사초기둥의 생성, 성장 및 소멸은 이 공간에 분포하는 식물의 정착, 성장, 소멸과 밀접한 연관이 있는 것으로 판단되었다. 현재 용늪습지보호지역은 제비동자꽃이 분포하는 사초기둥이 발달한 공간이 넓게 분포하고 있고 소멸과 재정착의 과정이 잘 이루어지는 것으로 평가되었다. 그러므로 현재와 같은 생태적 과정이 잘 유지된다면 용늪습지보호지역의 제비동자꽃 개체군은 오랜 기간에 걸쳐 지속 가능할 것으로 예상되었다.

Lychnis wilfordii (Regel) Maxim. is one of the wetland specialists mainly distributed in peatlands at high latitudes. In Korea, it is isolated in two regions. This study investigated habitats, growth traits, and self-compatibility of L. wilfordii and assessed the internal dynamics of its population persistence. Its population has remained stable in the Yongneup Wetland Protected Area (YWPA). There was a clear difference in vegetation environment between YWPA and the distribution area in Daegwallyeong (DWL), Pyeongchang-gun. It has self-compatibility while pollinators facilitate its seed production. It produces a large number of hibernacles and bears the maximum number of branches and fruits in soil with rich organic contents. However, it grows and bears fruits even under the condition of low organic contents. In YWPA, L. wilfordii is not distributed in high moor but widely distributed in low moor where tussocks by Carex thunbergii var. appendiculata are developed. It is mainly distributed on the top of tussocks also. Therefore, it is judged that the formation, growth, and extinction of tussocks by C. thunbergii var. appendiculata is closely related to the establishment, growth, and extinction of plants distributed in this space. It is assessed that the current YWPA has well-developed tussocks in which L. wilfordii is widely distributed, and extinction and re-establishment progress well. Accordingly, the L. wilfordii population is expected to be sustainable in the long term given if its current ecological process is maintained well.

키워드

과제정보

본 논문은 정부(환경부)의 재원으로 국립생물자원관의 2018년 식물자원 유전자 다양성 연구(4단계 1차년도)의 지원을 받아 수행하였다(NIBR201803102). 논문에 사용된 결과 중 일부는 환경부 원주지방환경청에서 수행하는 용늪습지보호지역의 생태계변화관찰 조사에서 확보된 자료가 포함되었다. 연구의 모든 과정은 제비동자꽃 분포지에 미치는 영향이 최소화 될 수 있도록 계획하고 시행되었다. 마지막으로 재배실험에 도움을 주신 강원도 자연환경연구공원과 국립수목원 유용식물증식센터의 이기홍 선생님께 감사드립니다.

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