Green Spaces in the Context of Spatial Urban Development: Interrogating the Case of Federal Capital City of Nigeria

Author(s):  
Oluwaseun Morenike Olukoya ◽  
Obafemi Olukoya

This study addresses the challenge of disappearing green space within the Federal Capital City (FCC) of Nigeria. The study investigates the multiplicity of factors which contribute to the disappearance of the green spaces and conclusively suggests an approach to conserving the green spaces with the surging urbanization in view.

2018 ◽  
Author(s):  
Oluwaseun Morenike Olukoya ◽  
Obafemi Olukoya

This study addresses the challenge of disappearing green space within the Federal Capital City (FCC) of Nigeria. The study investigates the multiplicity of factors which contribute to the disappearance of the green spaces and conclusively suggests an approach to conserving the green spaces with the surging urbanization in view.


2016 ◽  
Vol 9 (3) ◽  
pp. 5-13 ◽  
Author(s):  
Mehdi Rakhshandehroo ◽  
Mohd Johari Mohd Yusof ◽  
Roozbeh Arabi ◽  
Rasul Jahandarfard

Abstract Decreasing green spaces is a significant concern in today’s compact cities while they provide various dimensions of sustainability; therefore, sustainable development has become the key idea to solve a series of environmental, economic and social problems. Because urban green space can be seen from different distinct disciplinary perspectives, this study reviews theories and material based on multidisciplinary and transdisciplinary approaches. Urban development and renewal should be accompanied by a green vision, to insert more plantable spaces into the urban environment. Therefore, sustainable urban planning, design and management are needed to improve urban greening by innovative and creative strategies.


2021 ◽  
Vol 30 (2) ◽  
pp. 275-288
Author(s):  
Olena P. Havrylenko ◽  
Petro H. Shyshchenko ◽  
Yevhen Yu. Tsyhanok

The goal of the study is to determine the actual areas and the geographical distri- bution of Urban Green Spaces (UGS) in Kyiv; compile and analyse the ratings of the city administrative districts by key UGS indicators and substantiate the level of comfortable living in each district according to the concept of a green compact city. The goal stems from the announcement of an official strategy of transforming Kyiv into a comfortable compact city with an attractive green infrastructure. To achieve this goal, we have calculated a number of major indicators of the modern green infrastructure of Kyiv in all ten city districts. According to the method we developed, we analysed the drawings of the urban development master plan and regulatory documents, and conducted a field survey of significant UGS sites in Kyiv. The data obtained were used to make a UGS map of Kyiv and other thematic maps. For the most accurate calculation of key UGS indicators, we processed several thousand contours in Kyiv’s cartographic base. The sizes of Urban Protected Areas (UPA) were found separately, and their share in the total city territory and of each district (Conservation Coefficients) was determined. In so doing, UPA distribution was found to be very irregular, with a total area of 174.9 km2, or about 21.2% of that of Ukraine’s capital. We analysed the ratio of the city population and the areas of green spaces in each Kyiv district. To identify districts with a different UGS coverage, we calculated the Greenness Coefficients (GC) and compiled a rating of Kyiv districts by their level of greenness, using the Greenness Coefficients Index. Significant GC variations in different city districts were substantiated. In contrast to previous studies, we calculated the provision of Kyiv residents with green zones of not merely common usage, but also with those of all other kinds, including UPA. We also calculated the Green space provision per person and compiled ratings of Kyiv districts by the Green Space Provision Index. The results were presented on a relevant map. Based on calculating the share of protected areas in the total UGS area, we found the ratings of Kyiv districts by the Green space legally protected Index. Wherein, we found significant variations among the districts by the ratio of protected areas and green spaces deprived of any legal protection. This increases their vulnerability to projected development attempts. We calculated the Integral Green Space Index (GSI) based on processing all significant UGS indicators of Kyiv. GSI allows for an integral assessment of the condition of the Urban Green Infrastructure (UGI) in Kyiv, and it is the key criterion of its compliance with modern requirements to an ideal compact city. Holosiivskyi District received the highest GSI rating. It is uniformly replete with UGS, which are provided for quality recreation and, at the same time, are protected by environmental legislation. Solomianskyi District received the lowest rating, and almost all the elements of its existing UGI require a cardinal optimisation. As a whole, the indicators we calculated can create an illusion of adequate provision of Kyiv with UGS. Actually, they are distributed very irregularly in the majority of districts. The results of our study are indicative of the presence of many challenging locations that require an extension of existing UGS and the development of new ones pursuant to the principles of compact city planning. Since UGI planning depends on the implementation of the Urban Development Master Plan, it makes sense to include the Green Space Index to the key indicators of the Kyiv Development Strategy. The draft new City General Plan should also be refined with account of the above-mentioned problems.


Diversity ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 479
Author(s):  
Yonghwan Park ◽  
Chang-Jun Kim ◽  
Moon-Bo Choi ◽  
Yuno Do

Urban expansion threatens ecosystems through direct habitat conversion. To secure urban biodiversity and enhance ecosystem services, a common focus of planning and growth management efforts is to establish green spaces. This study aimed to understand the formation process of newly created green spaces after urban development. We investigated the carabid beetle assemblages in its current habitat in a new city and in its former habitats for assessing the loss of species diversity by urban development and to identify the initial status of species assemblages in the current urban habitats, including green spaces. The diversity and composition of the carabid beetle assemblages significantly changed in the new city. The former habitat loss by urban development leaves large numbers of carabid species to dramatically decline. Carabid assemblages in current habitats may show a critical response to habitat loss, although former habitats were converted to green spaces. Some carabid species were only present in current habitats, including the green space from former habitats. In addition, the current habitat, including green spaces and other habitats, have similar carabid assemblages. Our results indicated that the loss of former habitat has a much greater effect on species diversity persistence than changes in habitat configuration and the creation of green spaces. Consequently, most carabid beetles were already lost during development. Urban habitats in new cities, including green spaces, represent simple and homogeneous habitats, although the development was designed and planned to enhance biodiversity. The present design and planning practice for green spaces that destroyed all former habitats to prepare the ground of urban areas and thereby created urban habitats, including green space, may need to be changed to secure biodiversity. Designing and planning the green spaces should consider the species’ former habitats, for instance, creating a similar type of green space to agricultural land, forest, and wetland, and thereby the former habitat remains intact to enhance biodiversity and function.


2019 ◽  
Vol 65 (No. 11) ◽  
pp. 428-437
Author(s):  
Vasyl Yukhnovskyi ◽  
Olha Zibtseva

The article analyzes and compares the existing quantitative norms of green space in different cities of Ukraine and other countries. It is substantiated that the index of provision of green space per capita is significantly more informative under the condition of equal density of the urban population and must necessarily be supplemented by the indicator – the level of greening. The comparison of data relative to Ukrainian cities is complicated by the categorization of green plantings adopted in the country, rather than the green spaces, as practiced in most countries. Despite the relatively low density of settlements, the provision of green space per capita in Ukrainian cities often does not meet the requirements of EU and UN. The primary use of the recreational function of green plantations in modern conditions is appropriate to reorient to the ecological function of green spaces and sustainable urban development. We consider necessity to introduce a minimal environmental norm for the total number of green spaces within the city territory regardless of the form of ownership.<br /><br />


Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 813
Author(s):  
Hui Dang ◽  
Jing Li ◽  
Yumeng Zhang ◽  
Zixiang Zhou

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.


Author(s):  
Asier Anabitarte ◽  
Gonzalo García-Baquero ◽  
Ainara Andiarena ◽  
Nerea Lertxundi ◽  
Nerea Urbieta ◽  
...  

The positive effects of Green Spaces on health are thought to be achieved through the mechanisms of mitigation, instoration and restoration. One of the benefits of Green Spaces may be the restoration of attention and so the objective of this research is testing empirically whether exposure to a green environment improves attention in school children. For so doing, we first used a split-unit statistical design in each of four schools, then combined the primary results via meta-analysis. The Attention Network Test (ANT) was used to measure attention before and after exposure and a total of 167 seven-year-old students participated in the experiments. Overall, our experimental results do not support the hypothesis that students’ exposure to activities in green vs. grey spaces affected their performance in ANT. This was so despite the fact that neither age nor gender biases have been detected and despite that our experiments have been proved to be sufficiently statistically powerful. It would be advisable to consider air pollution and noise. We also recommend that participants attend the experiment with mental exhaustion to maximize the ability to detect significant changes.


2021 ◽  
pp. 088626052110280
Author(s):  
Gibran C. Mancus ◽  
Andrea N. Cimino ◽  
Md Zabir Hasan ◽  
Jacquelyn C. Campbell ◽  
Phyllis Sharps ◽  
...  

There is increasing evidence that green space in communities reduces the risk of aggression and violence, and increases wellbeing. Positive associations between green space and resilience have been found among children, older adults and university students in the United States, China and Bulgaria. Little is known about these associations among predominately Black communities with structural disadvantage. This study explored the potential community resilience in predominately Black neighborhoods with elevated violent crime and different amounts of green space. This embedded mixed-methods study started with quantitative analysis of women who self-identified as “Black and/or African American.” We found inequality in environments, including the amount of green space, traffic density, vacant property, and violent crime. This led to 10 indepth interviews representing communities with elevated crime and different amounts of green space. Emergent coding of the first 3 interviews, a subset of the 98 in the quantitative analysis, led to a priori coding of barriers and facilitators to potential green space supported community resilience applied to the final 7 interview data. Barriers were a combination of the physical and social environment, including traffic patterns, vacant property, and crime. Facilitators included subjective qualities of green space. Green spaces drew people in through community building and promoting feelings of calmness. The transformation of vacant lots into green spaces by community members affords space for people to come together and build community. Green spaces, a modifiable factor, may serve to increase community resilience and decrease the risk of violence.


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