한국 양치식물의 생활형 구성 분석
Composition of Pteridophyta’s Life-form Spectra in Korea
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초록
기후적인 인자와 양치식물과의 관계를 밝히기 위한 선행연구로서, 우리나라 양치식물 총 321분류군을 대상으로 이들의 생활형에 대하여 휴면형태 및 잎의 계절성을 중심으로 한 분류군별 구성･분석을 수행하여 국내 양치식물의life-form spectrum을 제시하고자 하였다. 휴면형의 경우, Raunkiaer의 기준으로, 국내･외 표본관의 소장표본및 전문 연구 자료를 조사하여 구분･정리하였으며, 잎의계절성에 대하여는 문헌, 개인관찰기록, 개인서신 등에 기초하였다. 아울러 분류･정리된 생활형을 중심으로 각 과별특성도 살펴보았다. 잎의 계절성 양상에 따른 구분 결과로는하록성(d), 상록성(e), 동록성(sd)이 각각 37.4%, 59.2%,1.9%으로 상록성 양치식물이 상대적으로 많이 분포하는 것으로 나타났으며, 분류군별 휴면형에 따라서는 반지중식물(Hemicryptophytes: H)이 42.1%로 가장 높은 비율로 나타났고, 다음으로 지중식물(Geophytes: G)과 착생식물(Epiphytes: E)이 각각 25.5%, 15.9% 이었으며, 지표식물(Chamaephytes: Ch)이 11.8%로 조사되었다. 향후 지역별 식물상에서 양치식물상을 추출하여 유사한 spectrum을나타내는 지역을 연결한 양치식물 생활형선(Ptph. life-form line)을 도출함으로써 우리나라 양치식물의 분포역 고찰이가능할 수 있을 것으로 사료된다.
Abstract
The preliminary study for providing the relationship of the factors which are climate and the pteridophyta was carried out. Dormancy form and leaf phenology of the 321 taxa belonging to 27 families were analyzed. This survey shows life-form spectrum of Korean ferns. The results obtained from this study were as follows: Deciduous (d), Evergreen (e) and Summer-deciduous (sd) were calculated as 37.4%, 59.2%, 1.9%, respectively and the Evergreen (e) has the highest value compared to the other leaf phenologies. It observed from the life-form spectra that Hemicryptophytes (H) was the most common dormancy form at 42.1%. Geophytes (G), Epiphytes (E) and Chamaephytes (Ch) were calculated at 25.5%, 15.9%,and 11.8%, respectively. There will be a discussion about geographical distribution of Korean ferns and possibility of their distribution range.
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