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Evaluating the Ecological Characteristic and the Relative Significance for Forest Resources Management on the Uninhabitable Islands in Jeju Special Self-Governing Province

제주도 부속 무인도서의 산림자원관리를 위한 자연환경 특성과 상대적 중요도 평가

  • Won, Hyun-Kyu (Warm Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Jung, Sung-Cheol (Warm Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Kim, Eun-Mi (Warm Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Seo, Yeon-Ok (Warm Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Kwon, Jin-O (Division of Forest, Water and Soil Conservation, Korea Forest Research Institute) ;
  • Choa, Jong-Heon (Department of Fire and Disaster Prevention, Jeju International University)
  • 원현규 (국립산림과학원 난대.아열대산림연구소) ;
  • 정성철 (국립산림과학원 난대.아열대산림연구소) ;
  • 김은미 (국립산림과학원 난대.아열대산림연구소) ;
  • 서연옥 (국립산림과학원 난대.아열대산림연구소) ;
  • 권진오 (국립산림과학원 산림수토보전과) ;
  • 좌종헌 (제주국제대학교 소방방재학과)
  • Received : 2014.05.15
  • Accepted : 2014.09.02
  • Published : 2014.12.31

Abstract

This study was conducted to analyze the ecological environment of the 53 uninhabitable islands of Jeju for the management formulation. The result of the Pearson correlation analysis were 0.647(p<0.01) for herbs, 0.585(p<0.01) for trees and 0.762 (p<0.01) for animals which means that there is a high correlation between the size of the forests in the uninhabitable islands and the species diversity of herbs, trees and animals. For the regression modeling to predict the forest area, the R value was 0.899 and the $R^2$ was 0.803 with 79.7% statistical significance. This study also classified the uninhabited islands based on its forest area into two classes, with a forests area of 0.5ha and with a forest of approximately 12ha. The importance value of the biodiversity in the uninhabited islands was also evaluated using DEA and the islands with higher importance, namely DMU14(0.941), DMU36(0.964), DMU44(1.000) and DMU45(0.903) were recommended to be managed. It was observed that uninhabited islands with forests had a mean importance value of 0.439 which is higher as compared to the uninhabited islands without forests with 0.096. This verified that there is close relationship between forest and biodiversity.

본 연구는 제주특별자치도 부속 53개 무인도서의 자연환경 특성을 분석하고, 산림자원관리의 우선순위를 판단하기 위하여 상대적인 중요도를 평가하였다. 우선 제주도 무인도서의 자연환경 특성을 분석해 본 결과, 산림동물종수(r = 0.762, p<0.01), 초본종수(r = 0.647, p<0.01), 목본종수(r = 0.585, p<0.01)순으로 산림규모와 높은 상관성이 있는 것으로 분석되었다. 그리고 도서지역 산림규모를 예측하기 위한 회귀모형은 R=0.899, $R^2=0.803$으로 나타났으며, 회귀식에 대한 설명력은 79.7%로 통계적으로 유의하였다. 무인도서의 산림규모별 유형화분석은 산림면적이 약 0.5 ha와 약 12 ha로 두 가지 그룹으로 분류되었다. 두 번째로 DEA를 이용하여 제주도 무인도서별 산림자원관리의 상대적인 중요도를 평가한 결과, DMU14(0.941), DMU36(0.964), DMU44(1.000), DMU45(0.903)등이 생물종다양성이 풍부하여 산림관리를 위한 우선순위가 높은 것으로 나타났다. 그리고 산림이 있는 무인도서의 상대적 중요도는 평균 0.439, 산림이 없는 무인도서는 평균 0.096으로 나타나 산림과 생물종 다양성에는 밀접한 관계가 있는 것으로 분석되었다.

Keywords

References

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