Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Recently Augmented Natural Habitats of Forsythia koreana (Rehder) Nakai and Abeliophyllum distichum Nakai in Korea

개나리와 미선나무의 새로운 자생지 보고

  • Received : 2010.12.01
  • Accepted : 2010.12.16
  • Published : 2010.12.31
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Abstract

This study was performed to report the augmented wild populations of Forsythia koreana (Rehder) Nakai and Abeliophyllum distichum Nakai in Korea. Forsythia koreana was found in Budong-myeon, Cheongsong-gun, Gyeongsangbuk-do. The overall size of the natural habitat of Forsythia koreana is $5m{\times}5m$. A total of 12 individuals were recorded in the wild, and 3 of them were in the seedling stage. The wild habitat is in a secondary forest, which is co-dominated by Pinus densiflora Siebold & Zucc and Robinia pseudoacacia L, with 15% coverage. The coverage of the shrub layer is 40% and is dominated by Spiraea prunifolia for. simpliciflora Nakai. The natural habitat of Abeliophyllum disitichum, which is recorded in Uisong-up, Gyeongsangbuk-do, is distributed in sites characterized by boulders along streams, with a patchwork of 15 scattered areas over a habitat size of $50m{\times}15m$. Quercus variabilis Blume is a dominant species in this habitat, with this species dominating at the sub-tree layer. Celtis aurantiaca Nakai also dominates at the shrub layer. The natural ranges of these two species in Korea were mapped based on the terms of the extent of occupancy (EoO).

본 연구는 개나리와 미선나무의 새로운 자생지의 보고이다. 개나리의 자생지는 경상북도 청송군 부동면에서 발견하였다. 자생지의 규모는 $5m{\times}5m$크기로 12개체가 생육 중이었으며 그 중 3개체는 7-10 cm 정도의 유묘였다. 자생지의 식생은 주로 소나무와 아까시나무가 우점하는 2차림으로 교목층의 피도는 15% 정도였으며, 관목층의 피도는 40%로 조팝나무가 우점하였다. 경상북도 의성읍에서 발견한 미선나무는 하천변에 위치하여, 전석지 혹은 돌이 많은 곳으로, 하천을 따라 15개의 패치(patch)상으로 분포하고 있다. 자생지 크기는 $50m{\times}15m$로 약 $750m^2$이며, 교목과 아교목층은 굴참나무가 우점하고, 관목층은 산팽나무가 우세하였다. 기존의 보고 및 새롭게 밝혀진 개나리와 미선나무의 자생지를 대상으로 세계자연보전연맹 종보전위원회의 적색목록 평가기준의 하나인 분포역(EoO)를 적용하여 미선나무에 대한 분포역을 검토하였다. 검토한 결과 면적$21,513Km^2$로 산출하였다.

Keywords

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