한국조경학회지 (Journal of the Korean Institute of Landscape Architecture)

  • 제45권6호
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  • Pages.149-159
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  • 2017
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  • 1225-1755(pISSN)
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  • 2288-9566(eISSN)
한국조경학회 (The Korean Institute of Landscape Architecture)
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노거수의 건강 위험도 평가 요소간 상대적 중요도 및 우선순위

The Relative Importance and Priority of the Health Evaluation Indicators of Old-growth and Giant Trees

  • Xia, Tian-Tian (Dept. of Landscape Architecture, Graduate School, Dongguk University) ;
  • Zhang, Zhong-Feng (Dept. of Landscape Architecture, Graduate School, Dongguk University) ;
  • Kang, Tai-Ho (Dept. of Landscape Architecture, Dongguk University Gyeongju Campus)
  • 투고 : 2017.10.24
  • 심사 : 2017.12.19
  • 발행 : 2017.12.31
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초록

노거수의 건강 및 보호 등에 대한 연구는 많이 있어 왔지만, 경험적인 판단 또는 원론적인 조치 등에 집중되고 있다. 건강 위험도 평가는 노거수의 현황 및 위험 순위를 반영할 수 있어 노거수의 보호 방안 수립에 귀중한 자료가 된다. 본 연구는 노거수의 건강 위험도를 평가할 수 있는 평가지표를 도출하여 6개 대분야와 46개 지표인자를 2개 층으로 나누고, AHP 및 PCA 기법을 이용하여 각 위험 대분야와 지표인자의 가중치를 산출하였다. AHP 기법은 각 대분야 간의 상대적인 중요성을 판단하는데 유용한 평가 기법으로 평가 결과, 노거수의 자체노화가 위험의 주요 원인으로 나타났다. PCA 기법 평가 결과, 수간의 부패 상태, 수광 상태, 외과수술 흔적, 진균병해, 토양 건습도, 낙뢰 등이 각 대분야의 가장 중요한 지표 인자로 나타나 보호 관리 시 우선적으로 고려하여야 한다. 각 세부 지표의 상대적 중요도 및 우선순위를 설정하여 건강 위험도 평가에 유용하게 적용할 수 있다. 본 연구 결과는 노거수 위험도 평가에 객관적인 판단 근거가 되며, 노거수 보호 관리에 지침이 될 것이다.

There are many studies on the health and protection of Old-growth and Giant Trees, concentrating on empirical judgment and basic protection measures. The problem this study addresses is the relative importance and priority of the health evaluation indicators of Old-growth and Giant Trees. Firstly, this study exports the evaluation indicators of Old-growth and Giant Trees. The evaluation system for the degree of danger of Old-growth and Giant Trees are composed of two layers: 5 fields and 46 indicators. Secondly, using the AHP and PCA method can determine the weight of each field and each index factor. The process of AHP establishes the relative importance judgment matrix of each field and fully proves that the main cause of danger is individual aging. The PCA method suggested that trunk rot status, light conditions, tree surgeries, bacterial diseases, and soil moisture level are the most important factors in each field. These aspects should be given priority in the management and protection of Old-growth and Giant Trees. Weight values obtained in this study seemed to be useful in the evaluation of Old-growth and Giant Trees.

키워드

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