개느삼의 분포와 자생지 환경특성 = The natural habitat and distribution of Echinosophora koreensis (Nakai) Nakai in Korea

다국어 초록 (Multilingual Abstract)

The distribution and habitat characteristics of Echinosophora koreensis (Nakai) Nakai were investigated
to compile basic data for conservation and restoration. The species Echinosophora koreensis is distributed
within fourteen regions of the Korean Province of Gangwon, including Yanggu-gun, Inje-gun, Cheorwon-gun,
Chuncheon-si and Hongcheon-gun. Natural habitats were located at altitudes of 192-626 m, with inclinations of
1-45o. One hundred and fifty seven vascular plant taxa were identified from 42 quadrats in 14 habitats. Dominant
species among the woody plants, based on importance value, were Pinus densiflora and Quercus dentata in the
tree (T1) layer, Quercus variabilis, Pinus densiflora and Quercus mongolica in subtree (T2) layer, and Fraxinus
rhynchophylla, Prunus sargentii, Zanthoxylum schinifilium, and Ulmus davidiana var. japonica in the shrub (S)
layer. Importance values for members of the herb layer were: Echinosophora koreensis 28.34%; Polygonatum
odoratum var. pluriflorum 10.21%; Spodiopogon sibiricus 7.60%; Atractylodes ovata 4.77% and Carex lanceolata
4.13%. The importance values of the last four species were high, so they were at affinity with Echinosophora
koreensis in their habitats. Average species diversity was 1.03, and evenness and dominance were found to be
0.82 and 0.16, respectively. The soil types were sandy loam and loam. Average field capacity was 13.28%, and
the organic matter and soil pH were 6.70% and 5.77, respectively

국문 초록 (Abstract)

본 연구는 환경부의 멸종위기야생동·식물 II급과 산림청의 희귀식물로 지정되어 있는 개느삼의 분포와 자생지 환경을 조사하여 보전 및 복원 시 기초자료를 제공하고자 수행되었다. 조사결과 개느삼은 강원도 양구군, 인제군, 철원군, 춘천시 및 홍천군의 14개 지역에 분포하였으며, 주로 해발고도 192-626 m 범위와 경사 1-45o의 낮은 산지 능선과 사면에 생육하는 것으로 확인되었다. 식생조사 결과 14개 지역의 42개 방형구내에 출현한 식물은 총 157종류였다. 자생지 상층수목 중 교목층의 중요치는 소나무와 떡갈나무가 높았으며, 아교목층은 굴참나무, 소나무와 신갈나무, 그리고 관목층은 물푸레나무, 산벚나무, 산초나무, 느릅나무 등이 높게 나타났다. 또한 초본층은 개느삼이 28.34%로 가장 높았으며, 다음으로 둥굴레(10.21%), 큰기름새(7.60%), 삽주(4.77%), 그늘사초(4.13%) 등이 높은 값을 보여 이 종류들이 개느삼과 친화도가 높은 종류로 판단된다. 종다
양도는 평균 1.03이었고, 균등도와 우점도는 각각 0.82와 0.16으로 산출되었다. 토양분석 결과 토성은 주로 사양토와 양토가 우세하였고, 포장용수량은 평균 13.28%였으며, 유기물함량은 6.70%, pH는 5.77로 나타났다.

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