Exploring the equality of accessing urban green spaces: A comparative study of 341 Chinese cities

Wu, Longfeng; Kim, Seung Kyum

doi:10.1016/j.ecolind.2020.107080

Cited by 89 publications

(47 citation statements)

References 46 publications

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“…Green space functional areas are concentrated around the city, resulting in unequal access to green space for residents in different locations. According to studies, cities in northeast China have a greater supply of green space but are less accessible than those in southern China [57,58]. In conjunction with residential layout, it is meaningful to evaluate spatial disparities in access to urban green space and provide a reference for planning and policy intervention closely related to a location to make the supply of urban green space more equitable and inclusive [57].…”

Section: Discussionmentioning

confidence: 99%

Identifying Urban Functional Areas in China’s Changchun City from Sentinel-2 Images and Social Sensing Data

et al. 2021

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The urban functional area is critical to an understanding of the complex urban system, resource allocation, and management. However, due to urban surveys’ focus on geographic objects and the mixture of urban space, it is difficult to obtain such information. The function of a place is determined by the activities that take place there. This study employed mobile phone signaling data to extract temporal features of human activities through discrete Fourier transform (DFT). Combined with the features extracted from the point of interest (POI) data and Sentinel images, the urban functional areas of Changchun City were identified using a random forest (RF) model. The results indicate that integrating features derived from remote sensing and social sensing data can effectively improve the identification accuracy and that features derived from dynamic mobile phone signaling have a higher identification accuracy than those derived from POI data. The human activity characteristics on weekends are more distinguishable for different functional areas than those on weekdays. The identified urban functional layout of Changchun is consistent with the actual situation. The residential functional area has the highest proportion, accounting for 33.51%, and is mainly distributed in the central area, while the industrial functional area and green-space are distributed around.

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Section: Discussionmentioning

confidence: 99%

Identifying Urban Functional Areas in China’s Changchun City from Sentinel-2 Images and Social Sensing Data

et al. 2021

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“…Access to green spaces has been associated with GDP per capita and socioeconomic position of individuals. 57,60 Good physical environments such as residential density, street connectivity, public transport, and number of parks are positively related to physical activity. 61 Contextual complexities and differences between countries with different incomes, policy frameworks, and cultural norms may affect health-seeking behaviours and physical activity.…”

Section: Healthy Ageing and Socioeconomic Issuesmentioning

confidence: 99%

The influence of residential greenness on mortality in the Asia-Pacific region: a systematic review and meta-analysis

Kua

Lee²

2021

Perspect Public Health

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Aims: To critically appraise the evidence of the impact of exposure to salutogenic green environment on mortality, which is an important endpoint in epidemiological and clinical studies. Methods: We searched for studies published and indexed in three databases (PubMed, AMED, and CINAHL Plus) from inception until 31 March 2020, complemented with a search of cited literature for articles describing the effects of greenness on mortality in Asia-Pacific region. Eligible articles were screened and data were extracted independently by two reviewers. A random-effects model was utilised to obtain pool hazard ratio (HR) and risk ratio of all-cause mortality outcome. Results: The search identified 3239 studies, of which 20 studies reporting 133,363 participants from longitudinal cohort studies and 202 million people from population-based prevalence studies were included in the review. The majority of the studies (60%) were conducted in high-income countries in Asia-Pacific. All participants of the longitudinal cohort studies were aged 60 years or older, whereas the prevalence studies involved people of all age groups. A significant protective association of green environment exposure with all-cause mortality was reported in 18 studies. Pooled results from five studies showed increased level of greenness exposure was associated with a significant decrease in all-cause mortality (pooled HR = 0.97; 95% confidence interval (CI) = 0.93 to 1.02; p < 0.01; I²= 87.8%). Meta-analysis of total number of deaths in different quartiles of green spaces noted decreased risks of mortality with all causes of death with increased surrounding greenness. Conclusions: Some limited evidence suggests that populations exposed to the greener environment have a lower risk of mortality, implying the potential role of greenness in increasing longevity. Further studies with standardised design and outcome reporting should be conducted in low- and middle-income countries and in populations of low socioeconomic status to glean more generalisable and complete evidence for public health policy implications.

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“…In this paper, travel capacity refers to the maximum range of people's activities in a certain mode of transportation under the limitation of a certain standard (such as time), which represents the accessibility of the crowd to the target space. For example, the container approach or buffer analysis applies a specific walking distance as the maximum range of units [10,19,20] ，and targets outside the range are not included in the calculation results. However, there is no unified standard for the setting of people's walking ability or walking distance, 400m, 500m, 800m, 1000m or even more are adopted, which also makes people question the research.…”

Section: Estimation Of Travel Capacitymentioning

confidence: 99%

Equity Measurement of Public Sports Space in Central Urban Areas Accessible by Walking and Public Transportation Based on Residential Scale Data

Liu

Wang

Sun

et al. 2021

Preprint

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Background: Urban public sports space, including parks and sports facilities, has captured much public attention because of its close correlation with public health. However, few studies have assessed the equity of accessibility to various types of public sports space comprehensively with a fine scale. Methods: This study proposed a spatial equity measurement method based on multi-source urban data and GIS network analysis. Residential buildings were taken as the minimum research unit to investigate the equity differences of residents' enjoyment of urban public sports space accessible by walking and public transportation. Taking Harbin, China as an example, in the concepts of life circle, this study calculated and visualized the equity of more than 12, 000 residential buildings to a variety of public sports space in the central urban area. Results: The results showed that: 1) There was obvious inequity of sports space in the central city. The results under classification varied sharply, while the overall results moderated to a certain extent. 2) There were sharp differences between different types of sports space, and square space had the worst structure of equity. 3) The results of the two traffic modes were significantly correlated, and the correlation coefficient of the comprehensive results was the largest. In areas with poor walking equity, the results of the bus mode were generally not high either. Conclusion: This study integrated multi-source data into the traditional spatial computing models and provided an important reference for the equitable planning of urban public sports space. Attention should still be paid to the characteristics of the population in the planning intervention, such as the preference for public sports space and the limitation of choice caused by age difference. The closer the research is to the human scale, the more scientific the planning may be.

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Exploring the equality of accessing urban green spaces: A comparative study of 341 Chinese cities

Cited by 89 publications

References 46 publications

Identifying Urban Functional Areas in China’s Changchun City from Sentinel-2 Images and Social Sensing Data

Identifying Urban Functional Areas in China’s Changchun City from Sentinel-2 Images and Social Sensing Data

The influence of residential greenness on mortality in the Asia-Pacific region: a systematic review and meta-analysis

Equity Measurement of Public Sports Space in Central Urban Areas Accessible by Walking and Public Transportation Based on Residential Scale Data

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