Distribution and Northernmost Limit on the Korean Peninsula of Three Evergreen Trees

상록활엽수 3종의 한반도분포 및 자생북한계지

  • 이정현 (인하대학교 자연과학대학 생명과학과) ;
  • 최병희 (인하대학교 자연과학대학 생명과학과)
  • Received : 2010.11.30
  • Accepted : 2010.12.10
  • Published : 2010.12.31

Abstract

The distribution of three typical warm-temperate evergreen trees, Quercus acuta Thunb., Neolitsea sericea (Blume) Koidz., and Machilus thunbergii Siebold & Zucc., were surveyed on the Korean Peninsula based on field and specimen investigations and the distribution maps of the three species were prepared. The distribution patterns of the species correspond to the south coast floristic region in Korea, which includes the distributional areas of Jeju-do, Isl. Ulleung, the southern coastal areas, and the areas up to the islands around Incheon in the Yellow Sea. The northernmost limit of the distribution of Quercus acuta is Isl. Nap of Incheon in the west, and a new distribution was found at Isl. Ulleung in the East Sea; additionally, the limit of Neolitsea sericea is the Deojoek archipelago of Incheon. The northernmost limit of Machilus thunbergii is Isl. Daecheong of Incheon, which is the highest latitude among those of the three species. This distribution survey of evergreen broad-leaved trees in Korea can be used as basic data for the delimitation of floristic regions and as a bio-indicator of climatic change.

본 연구는 표본과 현지조사를 토대로 대표적 난온대성 상록활엽수인 붉가시나무, 참식나무, 후박나무의 한반도 분포를 조사하고, 각 종의 분포도를 작성하였다. 조사결과 이 종들은 제주도, 울릉도, 남해안 및 서해의 인천 도서지방까지 분포하며, 이는 한반도 남해안아구계와 일치하였다. 붉가시나무의 서쪽 자생북한계지는 인천시 옹진군 덕적면 납도이었으며, 동쪽은 금번조사를 통해 울릉도에서 새로운 자생지가 확인되었다. 참식나무의 자생북한계지는 인천시 옹진군 덕적군도(각흘도, 광대도, 하고도)이었으며, 후박나무의 자생북한계지는 인천시 옹진군 대청도로, 3종중 가장 고위도 까지 분포하였다. 이들 상록활엽수 분포 조사결과는 한반도 식물구계 구분 및 기후변화 생물지표자료로 활용할 수 있을 것이다.

Keywords

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