Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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The Characteristics and Survival Rates of Evergreen Broad-Leaved Tree Plantations in Korea

난대상록활엽수종 조림지 활착률과 영향인자

  • Park, Joon-Hyung (Forest Biomaterials Research Center, National Institute of Forest Science) ;
  • Jung, Su-Young (Warm-Temperate and Subtropical Forest Research Center, National Institute of Forest Science) ;
  • Lee, Kwang-Soo (Warm-Temperate and Subtropical Forest Research Center, National Institute of Forest Science) ;
  • Lee, Ho-Sang (Warm-Temperate and Subtropical Forest Research Center, National Institute of Forest Science)
  • 박준형 (국립산림과학원 산림바이오소재연구소) ;
  • 정수영 (국립산림과학원 난대아열대산림연구소) ;
  • 이광수 (국립산림과학원 난대아열대산림연구소) ;
  • 이호상 (국립산림과학원 난대아열대산림연구소)
  • Received : 2019.09.30
  • Accepted : 2019.11.12
  • Published : 2019.12.31
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Abstract

With rapid climate change and increasing global warming, the distribution of evergreen broad-leaved trees (EBLTs) is gradually expanding to the inland regions of Korea. The aim of the present study was to analyze the survival rate of 148 EBLT plantations measuring 180 ha and to determine the optimal plantation size that would help in coping with climate change in the warm, temperate climate zone of the Korean peninsula. For enhancing the reliability of our estimated survival model, we selected a set of 11 control variables that may have also influenced the survival rates of the EBLTs in the 148 plantations. The results of partial correlation analysis showed that the survival rate of 67.0±26.9 of the EBLTs in the initial plantation year was primarily correlated with plantation type by the crown closure of the upper story of the forest, wind exposure, and precipitation. For predicting the probability of survival by quantification theory, 148 plots were surveyed and analyzed with 11 environmental site factors. Survival rate was in the order of plantation type by the crown closure of upper story of the forest, wind exposure, total cumulative precipitation for two weeks prior to planting, and slope stiffness in the descending order of score range in the estimated survival model for the EBLTs with the fact that survival rate increased with shade rate of upper story to some extent.

본 연구는 전국 난대상록활엽수종의 조림지에 대한 생육환경 및 입지환경 특성과 활착률간의 관계특성으로부터 조림적지 의사결정 기초자료를 제공하고자 하였다. 1997년부터 후박나무(Machilus thunbergii), 구실잣밤나무(Castanopsis sieboldii) 등 난대상록활엽수 10종의 신규 조림지 180ha의 148개 조사구에 대한 활착률을 모니터링 한 결과 평균 활착률은 67.0±26.9%이었다. 활착률 편차가 크게 나타난 원인은 조림 적지에 관한 실증적 현지 검증이 부족한 상황에서 다양한 입지를 대상으로 시험 조림이 이루어진 결과로 판단된다. 각 조사구별 11개 생육환경 및 입지환경 특성, 조림전후 강수 등의 정성적 설명요인과 활착률의 정량적 요인 간의 관계특성으로부터 수량화 이론 I에 따른 활착률에 대한 기여도를 분석한 결과, 조림지 상층임분 울폐도, 풍노출도, 조림 전 누적 강수량, 경사도 등의 순으로 높게 나타났다.

Keywords

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