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http://dx.doi.org/10.9715/KILA.2019.47.2.100

Analysis of Environmental Equity of Green Space Services in Seoul - The Case of Jung-gu, Seongdong-gu and Dongdaemun-gu -  

Ko, Young Joo (Dept. of Landscape Architecture Graduate School, Chonbuk National University)
Cho, Ki-Hwan (Environmental Research Institute, Yeungnam University)
Kim, Woo-Chan (Ecological Institute of Korean Peninsula)
Publication Information
Journal of the Korean Institute of Landscape Architecture / v.47, no.2, 2019 , pp. 100-116 More about this Journal
Abstract
Urban green spaces, as a means to mitigate social problems and environmental risks, are getting more attention in evaluating urban environment. The inequity of green space distribution is becoming a major issue in urban planning and management. This study investigated the characteristics of green space in 3 districts (Jung-gu, Dongdaemun-gu, Seongdong-gu), that are composed of 46 administrative divisions in central Seoul, to analyze the environmental equity of urban green spaces. The correlations between the amount of green space, including the coverage of street trees, and the socioeconomic status of each administrative division were analyzed. To deduce the effects of plant coverage on the urban temperature regime, the relationship between the normalized difference of vegetation index (NDVI) and land surface temperature (LST) was analyzed. The research revealed that the mean NDVI of an administrative division was negatively correlated with the percentage of basic living recipients and disabled people. The LST of a division with low NDVI was higher due to the lack of green coverage. Such environmental inequities were closely related to residential building type, which was strongly affected by the economic status of residents. The LST of an apartment area was $2.0^{\circ}C$ lower than that of single-family houses and multi-housing areas. This is expected as the average NDVI of the apartment area was more than twice as high as the other environments considered in this study. The inequity can be exacerbated without urban planning which is deliberately designed to reduce it.
Keywords
Environmental Justice; Urban Green Space; Urban Heat Island Effect; Landsat; Sentinel;
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