scholarly journals Measures of Spatial and Demographic Disparities in Access to Urban Green Space in Harbin, China

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Qian Xie ◽  
Ming Lu
Keyword(s):  
Urban Areas ◽  
Green Space ◽  
Distribution Patterns ◽  
Urban Green Space ◽  
Spatial Accessibility ◽  
Walking Distance ◽  
Urban Green ◽  
Bivariate Correlation ◽  
Spatial Equity ◽  
The City

Access to urban green space (UGS) is associated with the enhancement of health and disparities in access generate issues of spatial equity and socioenvironmental justice. The aim of this study is to measure spatial accessibility and investigate access disparities to UGSs in urban areas of Harbin, China. A Gaussian-based two-step floating catchment area method and spatial autocorrelation analysis were used to measure the accessibility and evaluate its distribution patterns in residential tracts. Bivariate correlation was employed to examine the statistical relations between demographic characteristics of residential tracts and green space access. The results show that most residential tracts have minimal green space access within walking distance, while a few have limited access within cycling distance. Additionally, spatial disparities were found with low-accessibility tracts clustering in the center of the city, while high-accessibility tracts were located in northern and southern suburbs. Demographic disparities were also identified in the study: females have less access to UGS than males, areas with a high birth rate generally have more access, and population density is negatively associated with UGS access. The findings not only indicate that Harbin has an uneven distribution and disproportionate provision of UGS for urban residents but also identify which areas and population groups within the city are disadvantaged in access to UGS and thus provide suggestions for future construction and provision of UGS.

scholarly journals Urban Green Development Planning Opportunities and Challenges in Sub-Saharan Africa: Lessons from Bamenda City, Cameroon

2017 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Jude Ndzifon Kimengsi ◽  
Zephania Nji Fogwe
Keyword(s):  
Urban Areas ◽  
Green Space ◽  
Urban Green Space ◽  
City Council ◽  
Sub Saharan Africa ◽  
Urban Greening ◽  
Urban Green ◽  
Daunting Task ◽  
The City ◽  
Green City

World urban areas are increasingly dabbling with the triple challenge of pollution, congestion and environmental degradation. The quest for sanity and healthy urban living led to the introduction of urban green space initiatives. Green space has become primordial in urban areas as it enhances public health, recreation, amenities and property values through its location, accessibility, proximity and serviceability. In a bid to develop an urban green space in Bamenda, the City Council identified the Bamenda escarpment in 2011 for protection. This was followed by a Green City Initiative now captioned the Green City Project. The Bamenda City Council partnering with the UN-Habitat and the Dordrecht/Gorinchem City Councils of the Netherlands seeks to implement an urban greening project with major focus to map out potential areas for creating parks in Bamenda. This project which is a novelty in the rapidly changing urban landscape of Cameroon seeks to contribute to building a green economy that enhances nature, environmental protection and at the same time offers economic and social benefits to its citizens. In this study, we examine the opportunities and challenges of urban greening in Bamenda. Some 50 inhabitants around the escarpment were purposively sampled while council authorities and other stakeholders were interviewed in the Bamenda I municipality in order to assess the opportunities, challenges and prospects for the project. This was complemented by secondary data obtained from the Bamenda City Council. The conclusion drawn is that the initiative will provide opportunities for employment, generate revenue for the City Council and prevent uncontrolled city sprawl against the backdrop of the relatively unstable nature of the foothills (due to mass wasting processes) and land use competition, largely driven by population growth and the daunting task of relocating prior users. We therefore argue in favour of the effective application of urban development policies to restrict encroachment around the area and to engage in slope stabilization where necessary.

scholarly journals Evaluation of the Equity and Regional Management of Some Urban Green Space Ecosystem Services: A Case Study of Main Urban Area of Xi’an City

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 813
Author(s):  
Hui Dang ◽  
Jing Li ◽  
Yumeng Zhang ◽  
Zixiang Zhou
Keyword(s):  
Ecosystem Services ◽  
Carbon Sequestration ◽  
Urban Areas ◽  
Green Space ◽  
Well Being ◽  
Urban Green Space ◽  
Green Spaces ◽  
Deposition Flux ◽  
Urban Green ◽  
Xi’An City

Urban green spaces can provide many types of ecosystem services for residents. An imbalance in the pattern of green spaces leads to an inequality of the benefits of such spaces. Given the current situation of environmental problems and the basic geographical conditions of Xi’an City, this study evaluated and mapped four kinds of ecosystem services from the perspective of equity: biodiversity, carbon sequestration, air purification, and climate regulation. Regionalization with dynamically constrained agglomerative clustering and partitioning (REDCAP) was used to obtain the partition groups of ecosystem services. The results indicate that first, the complexity of the urban green space community is low, and the level of biodiversity needs to be improved. The dry deposition flux of particulate matter (PM2.5) decreases from north to south, and green spaces enhance the adsorption of PM2.5. Carbon sequestration in the south and east is higher than that in the north and west, respectively. The average surface temperature in green spaces is lower than that in other urban areas. Second, urban green space resources in the study area are unevenly distributed. Therefore, ecosystem services in different areas are inequitable. Finally, based on the regionalization of integrated ecosystem services, an ecosystem services cluster was developed. This included 913 grid spaces, 12 partitions, and 5 clusters, which can provide a reference for distinct levels of ecosystem services management. This can assist urban managers who can use these indicators of ecosystem service levels for planning and guiding the overall development pattern of green spaces. The benefits would be a maximization of the ecological functions of green spaces, an improvement of the sustainable development of the city, and an improvement of people’s well-being.

Noise perception assessment in urban green spaces using soundwalk approach

2021 ◽  
Vol 263 (1) ◽  
pp. 5780-5791
Author(s):  
Omid Samani ◽  
Verena Zapf ◽  
M. Ercan Altinsoy
Keyword(s):  
Green Space ◽  
Traffic Noise ◽  
Urban Green Space ◽  
Green Spaces ◽  
Noise Emission ◽  
Visual Effect ◽  
Technical Noise ◽  
Urban Green ◽  
Urban Green Spaces ◽  
The City

Urban green spaces are intended to provide citizens with calm environments free of annoying city noises. This requires a thorough understanding of noise emission and related exposure to sounds in green spaces. This research investigates noise perception in various spots in an urban green space. For this purpose, the study has been conducted in the grand garden of the city of Dresden. The garden covers 1.8 square kilometers of various landscapes, including water streams, park railways, fountains, bridges, roads for bicycles and pedestrians etc. Noise perception was investigated at eleven spots with emphasis on four noise types: nature noise, human noise, traffic noise, and technical noise. In parallel, audio-visual recordings were conducted for each spot to identify the connection between the perceptual measures and the psychoacoustic parameters. These spots are categorized based on the resulting perception and psychoacoustic parameters. In addition, the visual effect of each spot on final perception is investigated. Eventually, annoyance for each spot is identified based on the corresponding participants' perception and is associated with the relevant psychoacoustic parameters.

scholarly journals THE EFFECT OF GREEN SPACE ON THE LAND SURFACE TEMPERATURE IN HUE CITY

2018 ◽  
Vol 55 (4C) ◽  
pp. 129
Author(s):  
Nguyen Bac Giang
Keyword(s):  
Surface Temperature ◽  
Land Surface Temperature ◽  
Land Surface ◽  
Urban Areas ◽  
Green Space ◽  
Satellite Image ◽  
Urban Green Space ◽  
Landsat 8 ◽  
Urban Green ◽  
Study Results

This paper presents the analysis of the effect of urban green space types on land surface temperature in Hue city. Data are collected with temperature monitoring results from each green space type and the interpretation of surface temperature based on Landsat 8 satellite image data to determine temperatures at different times of the year. Results showed that there was a significant correlation between types of urban green space and the surface temperature. Types of green space with a large area and vegetation indexes have a greater effect on temperature than areas with a smaller green space do. Green space types including forest green space, dedicated green space and agriculture green space have the most effect on the surface temperature. The forest area has the greatest influence on the temperature with a temperature difference of more than 1.6 degrees Celsius at 9:00 in the daytime. Besides, the results extracted from satellite images also show that the area of urban green space going to be reduced makes a contribution to increase the surface temperature of urban areas. The study results have established foundation for planning the green spaces in climate change challenges in Hue City.

Dismantling the fence for social justice? Evidence based on the inequity of urban green space accessibility in the central urban area of Beijing

2018 ◽  
Vol 47 (4) ◽  
pp. 626-644 ◽  
Author(s):  
Jiayu Wu ◽  
Qingsong He ◽  
Yunwen Chen ◽  
Jian Lin ◽  
Shantong Wang
Keyword(s):  
Social Justice ◽  
Urban Area ◽  
Green Space ◽  
Ordinary Least Squares ◽  
Urban Green Space ◽  
Spatial Accessibility ◽  
Green Spaces ◽  
Planning System ◽  
Economic Disparities ◽  
Urban Green

Gated communities have become a common feature in recent decades and have been shown to lead to social inequality to the detriment of the poorest social classes. Because access to urban green space is crucial for both physical health and spiritual pleasure, it is often regarded as an indicator of social justice; however, there are many references to the current inequity in urban green space accessibility. Our study aimed first to measure the potential spatial accessibility of green space in the central urban area of Beijing; then to evaluate the socio-economic disparities in green space accessibility; and finally, to assess the effect of the policy of “opening up gated residential communities” on urban green space accessibility. We adopt the Gaussian-based two-step floating catchment to assess the spatial accessibility of green spaces in each residential zone in the central area of Beijing, and the ordinary least squares model was used to evaluate the inequity in accessibility caused by socio-economic disparities. The results reveal that lower income residential zones have remarkably lower access to green spaces. Next, by comparing the differences in accessibility equity between two comparable scenarios in which all communities have dismantled their fences, we unexpectedly find that the inequity of access to urban green space does not improve but becomes more pronounced. We attribute this result to socio-spatial polarization. Our findings can be used by urban planners to target current urban planning system reform and by policymakers to focus closely on the gradual spatial polarization between the rich and the poor.

scholarly journals Challenges of Urban Green Space and Its Accessibility in Planning District-12, Mysuru City

2021 ◽  
Vol 10 (1) ◽  
pp. 137-141
Author(s):  
Yashaswini S* ◽  
Shankar B
Keyword(s):  
Land Use ◽  
Green Space ◽  
City Planning ◽  
Urban Green Space ◽  
Green Spaces ◽  
Planning System ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Wide Range ◽  
The City

Improving the Accessibility of Urban Green Space (UGS) is an integral part of city planning system. People with better access to green space enjoy a wide range of health benefits. Therefore, it is a crucial element to be taken care and nourished in a land use framework. Mysore City is one of the planned large cities in India. The City had a population of about 0.9 million in 2011 and it is estimated to cross the million mark by 2021. There is a growing consciousness on health and wellbeing among the people resulting an increasing demand for urban green spaces both at neighbourhood and city levels. The accessibility helps in promoting usage of UGS and maintaining the balance in environment within the city areas. The main aim of this paper is to study the existing scenario of the UGS within the planning district-12 and to analyse the green space accessibility. The land use of Mysuru city is analysed to understand the city and the micro level land use analysis of Planning district-12 is made. The existing scenario of the UGS within the study area and its accessibility is analysed using different accessibility indicators. Considering the key findings, issues and challenges are identified. Later the suggestions and recommendations for the identified issues is proposed to enhance the green spaces quality and accessibility at neighbourhood levels. The Accessible Natural Green space Standard (ANGst) type of accessibility analysis has been carried to know UGS functionality. Henceforth urban green space network at Planning District levels (local levels) in the City of Mysuru is prepared as a model which can be implemented to the city as whole at the later stages

Introduction to the Urban Space Stereo Greening

2014 ◽  
Vol 548-549 ◽  
pp. 1696-1700
Author(s):  
Bo Wei Zheng ◽  
Zuo Lin Li ◽  
Jian Xin Guo
Keyword(s):  
Urban Space ◽  
Green Space ◽  
Future Trend ◽  
Urban Green Space ◽  
Coverage Rate ◽  
Beijing Area ◽  
Urban Green ◽  
Vertical Greening ◽  
The City ◽  
Important Form

Vertical greening as an important form of urban green space, it is an effective way to improve the city green coverage rate. This paper discusses the technology and the future trend of urban space stereo virescence, and in Beijing area as example this paper discusses the feasibility and expansibility, in order to help enterprise itself and the development of the industry.

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