대도시 도심의 생태적 연결성 및 연결망 분석
Ecological Connectivity and Network Analysis of the Urban Center in a Metropolitan City
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참고문헌
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초록
개발 과정에서 발생하는 생태공간의 단절과 파편화는 생물다양성의 위협 요소이다. 특히 개발 압력이 높은 도심은 생태공간이 부족하여 연결성이 매우 낮을 것이다. 이러한 문제는 대도시에서 더욱 두드러지게 나타나는 경향이 있다. 이를 해결하기 위해 개별 사업이나 도시관리 수준에서 생태적 연결성 현황을파악하고 개선하는 지속적인 노력이 필요하다. 그러나 대도시의 생태적 연결성 현황 파악과 개선에 대한 논의가 부족한 실정이다. 따라서 본 연구는 우리나라 대도시 서울, 부산, 대구, 인천, 광주, 대전, 울산의 도심이 가진 생태적 연결성을 평가하였다. 평가 결과 도심은 외곽이나 도시 전체와 비교해 연결성이 낮았다. 그리고 종분포모델 등 지역 특성을 반영하여 대전을 대상으로 수행한 생태적 연결망을 분석하여 1ha 이상 산림을 이어주는 최적 경로 510개를 도출하였다. 본 연구는 도시의 생태적 연결성 개선 목표 제시에 필요한정량적 수치와 생물다양성을 포함한 지역 특성에 따른 연결망을 도출한 사례로서 의미가 있다. 환경영향평가나 도시관리에서 생태적 연결성을 개선하는 방향을 제시하고 평가 체계를 구축하는 데 결과를 활용할 수있을 것으로 기대된다.
Abstract
The disconnection and fragmentation of ecological spaces that occur during the development process pose a significant threat to biodiversity. Urban center areas with high development pressure are particularly susceptible to low connectivity due to a scarcity of ecological space. This issue tends to be more pronounced in larger cities.To address this challenge, continuous efforts are needed to assess and improve the current state of ecological space connectivity at the level of individual projects and urban management. However, there is a lack of discussion regarding the analysis and improvement of ecological connectivity in metropolitan cities In line with this objective, this study evaluated the connectivity of ecological spaces in the city centers of Seoul, Busan, Daegu, Incheon, Gwangju, Daejeon, and Ulsan. The evaluation revealed that city centers exhibited lower connectivity of ecological spaces compared to their peripheries orthe overall city. In addition, in the ecological network analysis that reflected regional characteristics, such as the species distribution model conducted on Daejeon, 510 optimal paths connecting forests of more than 1ha were derived. This study is significant as an example of deriving an ecological network based on regional characteristics, including quantitative figures necessary for establishing goals to improve urban ecological connectivity and biodiversity. It is anticipated that the results can be utilized to propose directions for enhancing ecological connectivity in environmental impact assessments or urban management and to establish an evaluation framework.
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