Identifying Priority Areas for Ecological Conservation and Restoration using Landscape Connectivity Analysis
発表者／presenter’s name：〇Lin Jin 1,2，Eunhee Park 3，Youngkeun Song 1,2,4
所属／Affiliation：1 Interdisciplinary Program in Landscape Architecture, Seoul National University, Seoul 08826, Republic of Korea
2 Integrated Major in Smart City Global Convergence, Seoul National University, Seoul 08826, Republic of Korea
3 Institute for Sustainable Development, Seoul National University, Seoul 08826, Republic of Korea
4 Department of Landscape Architecture, Graduate School of Environmental Studies, Seoul National University, Seoul 08826, Republic of Korea

要旨／Abstract

Connectivity improvement is a key concern in natural resource planning, guiding landscape conservation and restoration efforts. We aimed to identify and prioritize areas for conservation and restoration to improve landscape connectivity, thereby increasing ecological and public benefits. Firstly, we presented a sequential process to prioritize patches for forest conservation and afforestation in Seoul. We ranked existing and candidate forest patches based on their contribution to landscape connectivity according to dPC index in Conefor.

Secondly, we developed urban green space networks using Linkage Mapper in Suwon. Sources and potential corridors were identified and graded for their importance from the perspective of biodiversity conservation. The appropriate spatial range of corridors was delimited from the perspective of providing green space for people. Here we show: 1) The individual size of the patches is not closely correlated with their importance for connectivity; 2) Small habitat patches (<20 ha) could potentially play a large role in connectivity, and the 50 most important small patches in six land use types are identified to provide a guide for effective afforestation efforts in Seoul; 3) A total of 118 sources and 156 corridors have been extracted in Suwon; 4) 

The final corridor boundaries delineate maximize the use of existing ecological space, emphasizing the role that grassland and riparian green spaces plays in the green network. Non-ecological spaces constitute 71.51% of the corridor’s total area, mainly consisting of residential (30.08%) and road (18.24%) land. To ensure the uninterrupted flow of ecological systems, residential green space and animal channels like overpasses should be constructed in Suwon. Our study suggests connectivity analyses can simplify and systematize the complex urban landscape, thereby guiding urban planning management in increasingly fragmented landscapes. We anticipate this study could pave the way for prioritizing conservation and restoration initiatives from the standpoint of ecology and the public.

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