Korean Journal of Agricultural and Forest Meteorology (한국농림기상학회지)

Korean Society of Agricultural and Forest Meteorology (한국농림기상학회)
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Forest Vegetation Types and Growth Characteristics of Seongin-bong in Ulleung Island, Korea

울릉도 성인봉지역의 산림식생유형과 생장특성

  • Published : 2007.03.31
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Abstract

Forest vegetation types and growth characteristics of Seongin-bong at Ulleung Island in Korea were studied by using importance values, distributions of diameter classes, and annual growth analysis. Vegetation types were classified into 7 groups. The number of existing woody plant and herbaceous plant species varied from 17 to 21 species per $100m^2$. In case of life-forms importance values, woody and herbs showed average values of 47% and 53% across 5 groups. But in Tsuga sieboldii-Pinus parviflora and Fague engleriana- Taxus cuspidata var. latifolia groups, woody importance values were 68% and 54%, respectively. Diameter classes in most stand types were regularly distributed and showed continuous growth in annual diameter growth. from these results, this site is expected to maintain a stable vegetation structure continuously. F. engleriana, which forms major species in this site, showed 0.46-0.62 cm in annual average diameter growth. The annual average diameter growth of broad-leaved tree species was 0.2-0.6 cm, while the growth rate of T. sieboldii and P. parviflora was 0.38 cm and that of T. cuspidata var, latifolia was below 0.1 cm.

울릉도 성인봉 일대 산림 식생유형과 생장특성을 분석하기 위하여 중요치, 직경급, 연륜을 분석하였다. 식생유형은 1개 그룹으로 구분되었으며 조사지에 대한 $100m^2$당 $17{\sim}21$종이 출현하였으며 목본성과 초본성의 중요치의 경우 솔송나무-섬잣나무와 너도 밤나무-회솔나무의 유형의 목본성이 각각 68%와 54%로 목본성이 초본성보다 높게 나타났으며 나머지 그룹에서는 목본성이 $47{\pm}2%$, 초본성이 $53{\pm}2%$로 나타났다. 대부분의 임분유형에서 경급이 고르게 분포하고 지속적인 생장을 나타내고 있어 시간이 지남에 따라 안정된 임분을 형성할 것으로 판단되었다. 본 조사지에서 가장 넓게 분포하고 있는 너도밤나무의 연생장량은 $0.46{\sim}0.62cm$로 다른 경쟁 교목성 수종과 비교하여 빠른 생장량을 나타내었다. 교목성 활엽수종들은 대체적으로 $0.2{\sim}0.6cm$사이에서 연평균 직경생장을 나타내었으며, 섬잣나무와 솔송나무는 0.38 cm, 회솔나무는 0.1cm이하의 직경생장을 나타내었다.

Keywords

References

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