Characterizing Horizontal and Vertical Perspectives of Spatial Equity for Various Urban Green Spaces: A Case Study of Wuhan, China

He, Shan; Wu, Yilin; Wang, Lei

doi:10.3389/fpubh.2020.00010

Cited by 36 publications

(25 citation statements)

References 37 publications

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“…Due to the difference in urban morphology (urban size, road conditions, etc.) and time zones, the start time and duration of the increase of particulate matter were different, complex formulas were therefore needed to ensure that the maintenance duration and intensity of the increase in PM 2.5 concentrations from mobile source are accounted for [considering that the hazard intensity of haze pollution depended on its concentration and exposure time ( 39 – 41 )]. Then, PM 2.5 concentration changes from 4:00 to 10:00 a.m. were selected for comparison in this study.…”

Section: Methodsmentioning

confidence: 99%

“…Prior to analysis, all variables were screened by backward elimination statistical procedure, the final model retained five independent variables: (1) Urban green space is a key factor affecting the health and quality of life of urban ecosystem. Local governments in China tend to plant trees rather than build parks to ensure the supply of public goods for urban greening ( 41 ). Green space is a kind of non-competitive urban public amenities.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Urban Greening on Incremental PM2.5 Concentration During Peak Hours

Wang

Cheng

2020

Front. Public Health

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In China, severe haze is a major public health concern affecting residents' health and well-being. This study used hourly air quality monitoring data from 285 cities in China to analyze the effect of green coverage (GC) and other economic variables on the incremental PM 2.5 concentration (ΔPM 2.5 ) during peak hours. To detect possible non-linear and interaction effect between predictive variables, a kernel-based regularized least squares (KRLS) model was used for empirical analysis. The results show that there was considerable heterogeneity between cities regarding marginal effect of GC on ΔPM 2.5 , which could potentially be explained by different seasons, latitude, urban maintenance expenditure (UE), real GDP per capita (PG), and population density (PD). Also described in this study, in cities with high UE, the growth of GC, PG, and PD always remain a positive impact on mitigation of haze pollution. This shows that government expenditure on urban maintenance can reduce or mitigate the environmental pollution from economic development. In addition, the influence of other urban elements on air quality had also been analyzed so that different combinations of mitigation policies are proposed for different regions in this study to meet the mitigation targets.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effect of Urban Greening on Incremental PM2.5 Concentration During Peak Hours

Wang

Cheng

2020

Front. Public Health

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“…The outbreak of COVID-19 has changed residents’ behavior patterns and has also reshaped the urban function mode [ 23 , 24 , 25 ]. There is a significant relationship between public health and population distribution [ 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

COVID-19: A Comparative Study of Population Aggregation Patterns in the Central Urban Area of Tianjin, China

Zeng

Sun

Chen

et al. 2021

IJERPH

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When a public health emergency occurs, a potential sanitation threat will directly change local residents’ behavior patterns, especially in high-density urban areas. Their behavior pattern is typically transformed from demand-oriented to security-oriented. This is directly manifested as a differentiation in the population distribution. This study based on a typical area of high-density urban area in central Tianjin, China. We used Baidu heat map (BHM) data to calculate full-day and daytime/nighttime state population aggregation and employed a geographically weighted regression (GWR) model and Moran’s I to analyze pre-epidemic/epidemic population aggregation patterns and pre-epidemic/epidemic population flow features. We found that during the COVID-19 epidemic, the population distribution of the study area tended to be homogenous clearly and the density decreased obviously. Compared with the pre-epidemic period: residents’ demand for indoor activities increased (average correlation coefficient of the floor area ratio increased by 40.060%); traffic demand decreased (average correlation coefficient of the distance to a main road decreased by 272%); the intensity of the day-and-night population flow declined significantly (its extreme difference decreased by 53.608%); and the large-living-circle pattern of population distribution transformed to multiple small-living circles. This study identified different space utilization mechanisms during the pre-epidemic and epidemic periods. It conducted the minimum living security state of an epidemic-affected city to maintain the operation of a healthy city in the future.

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“…A review of the relevant literature identified various methods of spatial equity measurement and quantification [23]; researchers usually measure spatial equity using horizontal and vertical approaches. Horizontal equity is the equal dissemination of resources to all social classes in a society, whereas vertical equity involves the dissemination of services corresponding to the requirements of each class [24,25]. Conversely, spatial equity can be defined as the reasonable expansion of land use in both social and economic contexts, and the equitable flow of services and goods from governing bodies [26].…”

Section: Introductionmentioning

confidence: 99%

Spatial Equity of Public Parks: A Case Study of Kabul City, Afghanistan

Mushkani

Ono

2021

Sustainability

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Accessibility, the size of the land area, the design and build quality, and the number of parks and their correlation with population density are key elements in fostering ecological spatial equity within cities. This study analyzed different spatial equity attributes of existing parks in Kabul City using onsite observations, measurement analyses, and mapping and buffering of satellite imagery using computer-aided design methods. The results revealed that, presently, 309 ha of urban land is covered by parks, which accounts for 0.78% of the total land area of 394.78 km2. On average, a quarter of city residents can access a park with basic amenities within 300 to 600 m of their residence, and parks currently provide a land coverage distribution per resident of 0.69 m2. However, the majority of parks lack certain amenities like playground and sports facilities desired by different user groups. This article also explored the inequitable distribution of parks at the city scale, underlining the scarcity or concentration of parks in certain areas and stressing the importance of allocating additional land for park provision.

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Characterizing Horizontal and Vertical Perspectives of Spatial Equity for Various Urban Green Spaces: A Case Study of Wuhan, China

Cited by 36 publications

References 37 publications

Effect of Urban Greening on Incremental PM2.5 Concentration During Peak Hours

Effect of Urban Greening on Incremental PM2.5 Concentration During Peak Hours

COVID-19: A Comparative Study of Population Aggregation Patterns in the Central Urban Area of Tianjin, China

Spatial Equity of Public Parks: A Case Study of Kabul City, Afghanistan

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