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. 2022 Mar 9;19(6):3200.
doi: 10.3390/ijerph19063200.

Effects of Urban Vibrancy on an Urban Eco-Environment: Case Study on Wuhan City

Ruijing Yu  1 , Chen Zeng  1   2 , Mingxin Chang  1 , Chanchan Bao  1 , Mingsong Tang  1 , Feng Xiong  3
Affiliations

Effects of Urban Vibrancy on an Urban Eco-Environment: Case Study on Wuhan City

Ruijing Yu et al. Int J Environ Res Public Health. .

Abstract

In the context of rapid urbanisation and an emerging need for a healthy urban environment, revitalising urban spaces and its effects on the urban eco-environment in Chinese cities have attracted widespread attention. This study assessed urban vibrancy from the dimensions of density, accessibility, liveability, diversity, and human activity, with various indicators using an adjusted spatial TOPSIS (technique for order preference by similarity to an ideal solution) method. The study also explored the effects of urban vibrancy on the urban eco-environment by interpreting PM 2.5 and land surface temperature using "big" and "dynamic" data, such as those from mobile and social network data. Thereafter, spatial modelling was performed to investigate the influence of urban vibrancy on air pollution and temperature with inverted and extracted remote sensing data. This process identified spatial heterogeneity and spatial autocorrelation. The majority of the dimensions, such as density, accessibility, liveability, and diversity, are negatively correlated with PM 2.5, thereby indicating that the advancement of urban vibrancy in these dimensions potentially improves air quality. Conversely, improved accessibility increases the surface temperature in most of the districts, and large-scale infrastructure construction generally contributes to the increase. Diversity and human activity appear to have a cooling effect. In the future, applying spatial heterogeneity is advised to assess urban vibrancy and its effect on the urban eco-environment, to provide valuable references for spatial urban planning, improve public health and human wellbeing, and ensure sustainable urban development.

Keywords: Wuhan; spatial modelling; urban eco-environment; urban vibrancy.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Location of research area (Wuhan).
Figure 2
Figure 2
Spatial distribution of the values of urban vibrancy and of its dimensions.
Figure 3
Figure 3
Mobile phone trajectories.
Figure 4
Figure 4
Distribution of PM 2.5 values and PM 2.5 NW–SE profile.
Figure 5
Figure 5
Spatial distribution of PM 2.5.
Figure 6
Figure 6
PM 2.5 values of different districts.
Figure 7
Figure 7
Spatial distribution of LST.
Figure 8
Figure 8
Land surface temperature of different districts.
Figure 9
Figure 9
Scatterplot between LST and PM 2.5.
See this image and copyright information in PMC

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