Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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A Study on Correlation between Species Composition and Environmental Factors in Abies koreana Forest

구상나무림의 종조성과 환경인자간 상관관계

  • Park, Byeong Joo (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum) ;
  • Kim, Ji Dong (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum) ;
  • Lee, Jun Woo (Forest Restoration Division, Baekdudaegan National Arboretum) ;
  • Cho, Seung wan (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum) ;
  • Heo, Tae Im (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum) ;
  • Lee, Dong Hyuk (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum) ;
  • Byeon, Jun Gi (Baekdudaegan Biodiversity Conservation Division, Baekdudaegan National Arboretum)
  • 박병주 (국립백두대간수목원 백두대간산림생물자원보전실) ;
  • 김지동 (국립백두대간수목원 백두대간산림생물자원보전실) ;
  • 이준우 (국립백두대간수목원 산림복원지원실) ;
  • 조승완 (국립백두대간수목원 백두대간산림생물자원보전실) ;
  • 허태임 (국립백두대간수목원 백두대간산림생물자원보전실) ;
  • 이동혁 (국립백두대간수목원 백두대간산림생물자원보전실) ;
  • 변준기 (국립백두대간수목원 백두대간산림생물자원보전실)
  • Received : 2021.03.02
  • Accepted : 2021.03.26
  • Published : 2021.04.01
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Abstract

This study was conducted to analyze community structure and species composition of Abies koreana forest. Field survey was carried out from June, 2019 to 2020, September. 121 plots (20×20 m) were set up, 5 herb layer plots (3×3 m) were constructed for each plot, and there, Diameter at Breast Height(DBH), height, environmental factor were measured. It was analyzed that water stress did not have a significant effect on the factors affecting the growth of A. koreana in Mt. Halla-san, and in the case of Mt. Deokyu-san, the more forest stands located at the ridge, the higher the tree density. It was found that the factors affecting the distribution of Abies koreana were not consistent according to the environment of study site.

본 연구는 국내 대표적인 구상나무 자생지인 덕유산, 지리산, 한라산 대상, 종조성과 토양이화학적성질과 경관지수를 이용하여 구상나무 분포와 환경요인간의 상호관계를 분석하여 향후 구상나무 보전을 위한 기초자료를 마련하는 것이다. 표본점 조사구는 총 121개소를 조사하였다. 토양이화학적 성질의 경우 대부분 한라산에서 높은 수치로 기록되었으며, 지형지수는 덕유산에서 가장 높게 나타났고 습윤지수는 한라산, 광량은 지리산에서 가장 높게 나타났다. ordination 결과 덕유산과 한라산의 구상나무림 종조성이 매우 이질적인 종조성으로 나타났다. 구상나무의 흉고단면적의 경우 한라산에서 가장 높게 나타났으나, 활엽수 흉고단면적은 적어 한라산의 구상나무림이 육지에 있는 구상나무림 보다 순림형태로 나타났다. 치수발생량은 덕유산에서 매우 저조하여 향후 후계목의 수가 적어 점차 쇠퇴하고 있는 것으로 나타났으나 치수발생수 뿐만아니라 향후 치수의 생장량에 대한 모니터링이 지속적으로 진행되어야 할 것으로 판단된다. 환경인자와 구상나무 식생요인간의 상관관계를 살펴보면, 한라산 지역은 지형습윤지수와 큰 영향이 없었으며, 지리산 및 덕유산은 지형습윤지수에 영향을 미치는 것으로 나타났다. 또한 치수발생과 관련하여 지리산과 여러 환경인자간의 상관관계가 통계쩍 유의성이 있는 것으로 나타났다. 구상나무림의 쇠퇴와 유지와 관련하여 국내 학계에서 여러가지 가설이 제시되고 있으나 이에 대한 단기간의 조사를 바탕으로 한 분석이라는 점에서 연속적이고 여러 지형상황에 따른 모니터링이 필요할 것으로 판단된다. 또한 해양성기후인 한라산 지역과 대륙성기후를 나타내는 덕유산, 지리산 지역의 구상나무림의 쇠퇴 및 유지와 관련한 환경인자는 지역적 특성에 따라 차이가 있는 것으로 분석되었다.

Keywords

References

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