Journal of the Korean Association of Geographic Information Studies (한국지리정보학회지)
- Volume 7 Issue 3
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- Pages.22-34
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- 2004
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- 1226-9719(pISSN)
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- 2287-6952(eISSN)
An Analysis on Landscape Ecological Pattern of the Geumho River Watershed Forest
금호강 유역 산림의 경관생태적 패턴분석
- Park, Kyung-Hun (Dept. of Environment Engineering, Changwon National University) ;
- Jung, Sung-Gwan (Dept. of Landscape Architecture, Kyungpook National University) ;
- Lee, Hyun-Taek (Dept. of Landscape Architecture, Kyungpook National University) ;
- Oh, Jeong-Hak (Dev. of Forest Ecology, Korea Forest Research Institute) ;
- Kim, Kyung-Tae (Dept. of Landscape Architecture, Kyungpook National University)
- Received : 2004.06.30
- Accepted : 2004.08.23
- Published : 2004.09.30
Abstract
An artificial disturbance like fragmentation in watershed forest has impacted a sustainability of watershed ecosystem, therefore this research quantified the landscape structure in the Geumho river watershed using landscape indices and GIS. Landscape indices were calculated from the forest distributed maps for 24 subwatersheds. Three common factors, which explained about 85% of the variation in the original data, were extracted by a factor analysis. The fragmentation gradient in forest landscape, which was calculated from the factor scores, was correlated with proportion of urban land (r=0.827, p<0.01,
산림의 단편화와 같은 인위적 교란은 유역생태계의 지속성에 영향을 미치기 때문에, 본 연구는 각종 개발사업에 따른 산림의 단편화를 사전에 예방하기 위해서 경관지수와 GIS를 이용하여 금호강 유역에 분포하는 산림구조를 정량화하였다. 소유역 단위의 경관지수값은 인자분석에 의해 전체 분산을 85% 정도 설명하는 3개의 공통인자를 단순화하였다. 산림단편화 정도는 소유역별 인자점수를 토대로 계산하였고, 이는 도시지역 면적률(r=0.827, p<0.01,