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Landscape Ecological Analysis of Green Network in Urban Area Using Circuit Theory and Least-Cost Path

Author

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  • Oh-Sung Kwon

    (Department of Ecology & Environment, Gyeonggi Research Institute, Suwon 16207, Korea)

  • Jin-Hyo Kim

    (Forestland Spatial Planning Division, Korea Forest Conservation Association, Daejeon 35262, Korea)

  • Jung-Hwa Ra

    (Department of Landscape Architecture, Kyungpook National University, Daegu 41561, Korea)

Abstract

Quantitative securing of green space in already developed cities has many practical limitations due to socio-economic limitations. Currently, South Korea is planning a green network to secure and inject effective green space, but it is difficult to reflect it in the actual space plan due to the abstract plan. This study utilizes circuit theory and least-cost path methods for presenting a green network that is objectified and applicable to spatial planning. First, an analysis of the Least-cost Path revealed 69 least-cost paths between 43 core green areas of the study site. Most least-cost paths have been identified as passing through small green areas and streams in the city. Using the circuit theory, it was also possible to distinguish areas other than least-cost paths from areas with high potential for development, areas where target species are concentrated within corridors. In particular, areas with relatively high green network improvement effects were derived within and around corridors. This study is most significant in establishing and evaluating existing urban green networks, overcoming the limitations discussed at the linear level and expanding to the area level. To increase the utilization of this study in the future, field surveys and monitoring studies on target species need to be supplemented.

Suggested Citation

  • Oh-Sung Kwon & Jin-Hyo Kim & Jung-Hwa Ra, 2021. "Landscape Ecological Analysis of Green Network in Urban Area Using Circuit Theory and Least-Cost Path," Land, MDPI, vol. 10(8), pages 1-23, August.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:8:p:847-:d:613960
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    References listed on IDEAS

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    1. Bo-Xun Huang & Shang-Chia Chiou & Wen-Ying Li, 2021. "Landscape Pattern and Ecological Network Structure in Urban Green Space Planning: A Case Study of Fuzhou City," Land, MDPI, vol. 10(8), pages 1-23, July.
    2. Jiaxing Wei & Jing Qian & Yu Tao & Feng Hu & Weixin Ou, 2018. "Evaluating Spatial Priority of Urban Green Infrastructure for Urban Sustainability in Areas of Rapid Urbanization: A Case Study of Pukou in China," Sustainability, MDPI, vol. 10(2), pages 1-14, January.
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    Cited by:

    1. Liang Lv & Shihao Zhang & Jie Zhu & Ziming Wang & Zhe Wang & Guoqing Li & Chen Yang, 2022. "Ecological Restoration Strategies for Mountainous Cities Based on Ecological Security Patterns and Circuit Theory: A Case of Central Urban Areas in Chongqing, China," IJERPH, MDPI, vol. 19(24), pages 1-21, December.
    2. Bohao Cui & Yili Zhang & Zhaofeng Wang & Changjun Gu & Linshan Liu & Bo Wei & Dianqing Gong & Mohan Kumar Rai, 2022. "Ecological Risk Assessment of Transboundary Region Based on Land-Cover Change: A Case Study of Gandaki River Basin, Himalayas," Land, MDPI, vol. 11(5), pages 1-22, April.
    3. Yimin Li & Juanzhen Zhao & Jing Yuan & Peikun Ji & Xuanlun Deng & Yiming Yang, 2022. "Constructing the Ecological Security Pattern of Nujiang Prefecture Based on the Framework of “Importance–Sensitivity–Connectivity”," IJERPH, MDPI, vol. 19(17), pages 1-21, August.
    4. Song, Lili & Wu, Yingying & Wu, Moyu & Ma, Jie & Cao, Wei, 2023. "An integrated approach to model connectivity and identify modules for habitat networks," Ecological Modelling, Elsevier, vol. 483(C).
    5. Shen, Jiake & Zhu, Wenjia & Peng, Zhenwei & Wang, Yuncai, 2023. "Improving landscape ecological network connectivity in urbanizing areas from dual dimensions of structure and function," Ecological Modelling, Elsevier, vol. 482(C).
    6. Hao Li & Hongyu Chen & Minghao Wu & Kai Zhou & Xiang Zhang & Zhicheng Liu, 2022. "A Dynamic Evaluation Method of Urban Ecological Networks Combining Graphab and the FLUS Model," Land, MDPI, vol. 11(12), pages 1-15, December.
    7. Fachao Liang & Mengdi Bai & Qiyu Hu & Sheng-Hau Lin, 2022. "Ecological Security and Ecosystem Quality: A Case Study of Xia-Zhang-Quan Metropolitan Area in China," Land, MDPI, vol. 11(5), pages 1-14, May.

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