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http://dx.doi.org/10.14578/jkfs.2021.110.1.22

Assessing Conservation Priority of Private Land in Unexecuted Urban Parks in Seoul Using Betweenness Centrality Analysis  

Hwang, Byungmook (Department of Forest Resources, Kookmin University)
Ko, Dongwook W. (Department of Forestry, Environment, and Systems, Kookmin University)
Kang, Wanmo (Department of Forestry, Environment, and Systems, Kookmin University)
Publication Information
Journal of Korean Society of Forest Science / v.110, no.1, 2021 , pp. 22-34 More about this Journal
Abstract
The implementation of the sunset provision of unexecuted urban parks in Seoul has been postponed; however, the mentioned parks still remain vulnerable since they can be subject to development under certain circumstances. Local governments may purchase the parks to prevent their loss but are constrained due to limited resources. The purpose of this study is to prioritize the purchase of unexecuted urban parks in Seoul based on landscape connectivity, which represents the important role of allowing the movement of wildlife and providing biodiversity in urban environments. In this study, we used four potential scenarios (PB100, PB1, PA100, PA1), which reflects the degree of land cover change resulting from the implementation of the sunset provision, and the role of Han River as a conduit or barrier for wildlife movement. Landscape connectivity was evaluated by calculating current flow betweenness centrality (CFBC). This was used to rank the importance of the unexecuted urban parks in Seoul. The results demonstrated that the implementation of the sunset provision will greatly decrease the connectivity of all parks in Seoul and particularly more so for parks in the southern part of the city. In addition, the results suggested that the low connectivity of Han river will diminish the connectivity around Bukhansan Mountain in the northern part of Seoul. Our study can be used for the prioritization of purchase, since it has the ability to evaluate the anticipated vulnerability of each park's connectivity after the sunset provision.
Keywords
urban ecosystem; urban green space; spatial analysis; graph theory; urban habitat fragmentation; urban wildlife; urban ecological connectivity; landscape permeability;
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