Urban and Regional Planning Review
Online ISSN : 2187-3399
ISSN-L : 2187-3399
Awareness of Basin Residents on Converting Old River Channels into Functional Greenways
Case study in Katabira River Basin
Shigehiro Yokota
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2024 Volume 11 Pages 76-94


In order to create blue-green infrastructure for urban flood control in a form that matches the local ecosystem, we need to understand the demand for ecosystem services that natural spaces provide to local residents, and consider ways to make better use of them. However, public awareness of blue-green infrastructure created by modifying natural spaces has not yet been fully grasped. An Internet questionnaire survey was conducted of residents living in Asahi Ward, Yokohama City, where old rivers have been converted into greenways due to river redevelopment. The conversion tolerance of old rivers to greenways was classified into three types: old river faction, greenway faction, and neutral. In addition to sex and age, there were differences in the conversion tolerance ratio depending on the experience of going down the river and recognition of the old river. As a result of analyzing the consciousness of the functionality of the old river by factor analysis, when the conversion tolerance of the old river was different, the degree of influence of convenience/safety and historicity/naturalness differed. In addition, covariance structure analysis using multi-population simultaneous analysis revealed that the satisfaction level of the greenway was positively influenced by awareness of environmental functionality, while historicity and naturalness were negatively influenced. In addition, analyzing the frequency of co-occurrence of environmental management and utilization desired for greenways and recognition of issues of old rivers revealed that the old river faction is trying to solve problems, such as the deterioration of water quality and lack of people to manage the natural environment, with the restoration of river ecosystems. This type of ecosystem-based problem solving has a different approach from the anthropocentric greenway faction, which expects beautification by improving the pedestrian environment. Therefore, in the future development of greenways, it will be necessary to secure a zone that utilizes the old river channel as a space for environmental adjustment, and an environmentalist community effort to utilize the ecological functions of the original environment will be important.

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