scholarly journals Reconsidering green belts, green wedges and greenways

2021 ◽  
Vol 43 ◽  
pp. e55196
Author(s):  
Karin Schwabe Meneguetti ◽  
Fabiano Lemes de Oliveira

Facing accelerated urbanization and landscape alteration, cities expand on the territory showing better or worse relationships between built environment and green spaces. Based on recent literature review, this article discusses the green wedges, green belts and greenway planning models in order to evaluate their capability in answering contemporary ecological and social issues. The article presents a conceptual overview of the selected planning models through a recent literature review, looking at the fundamental concepts of green infrastructure; then, it enlightens the connections between the spatial forms and the functions derived of these forms. These three models are connected infrastructures, varying between the ring, the star or linear forms. What differs the most is the capacity to encompass existing patches like forests or other valuable areas and the proximity and distribution of green spaces throughout the city. Whilst green belts, for their fringe condition, distance itself from the majority of inner-city dwellers, both green wedges and greenways can cross the urban fabric, and reach a greater number of neighborhoods, although the simple existence of these features does not guarantee their social functions. These findings have significant implications for the design of city expansions and can help to configure better neighborhoods in growing cities.

Land ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 112 ◽  
Author(s):  
Chiara Cortinovis ◽  
Grazia Zulian ◽  
Davide Geneletti

Nature-based recreation is among the most relevant ecosystem services supplied by urban green infrastructure, affecting citizens’ physical and mental wellbeing. Providing adequate green spaces for nature-based recreation is among the main goals of urban planning, but commonly-used indicators offer a partial view on the issue. Innovative methods and approaches, such as the ESTIMAP-recreation model, appear as promising ways to increase the quality of information available for decision-makers by considering both the range of green spaces that provide the service and the locally-specific demand. The article presents an application of the ESTIMAP-recreation model to the city of Trento (Italy), aimed at testing its adaptation to the local context and the potential improvements brought to urban planning. The comparison of the results with traditional indicators based on the availability and accessibility to urban parks shows significant differences in terms of priority of intervention across the city, with implications on planning decisions. The application demonstrates that innovative methods can enhance the understanding of nature-based recreation in cities beyond the focus on urban parks, revealing a wide portfolio of actions that planners can put in place to promote nature-based recreation through a multifunctional green infrastructure.


Author(s):  
O. S. Savytska ◽  
◽  
T. S. Rumilec ◽  
V. V. Kurian ◽  
◽  
...  

In the article the relevance of this research is due to overcoming the complex of social, environmental and economic problems in urban planning related to environmental improvement, improvement, greening of cities and settlements. Being one of the main elements of urban planning, "green spaces" form a favorable ecological environment. They also help to combat the effect of "thermal islands" by participating in the process of evaporation of moisture; reduce storm water runoff; improve air quality by absorbing atmospheric pollution. Improvement of cities is one of the priority tasks of forming a comfortable urban environment. It includes: improvement of the ecological situation in cities (related to the improvement of the landscaping system, which means scientifically grounded spatial arrangement of all components of urban landscaping according to urban areas) soil, climatic and other factors in order to achieve optimal ecological, sanitary and sanitary and sanitary effects. In the foreign practice of urban planning use the concept of "green infrastructure" ("Green infrastructure") or blue-green infrastructure ("Blue - green infrastructure"), which focuses on the environmental importance of the territory. Which considers the whole spectrum of landscape changes and serves as a basis for the formation and development of a favorable state in cities. The main reason for the interest in green infrastructure in the world is the desire to make the city a more conducive place to live, as well as to climate change. Reducing the negative impact on the environment is the key to the socio-economic development of the country. The purpose of this work is to develop recommendations for the design of green infrastructure. Analysis of existing experience in designing and implementing green infrastructure in an urbanized environment, identifying trends in the further development of their architectural and urban planning structure. The object of the study is the green infrastructure of major cities in the world, including its architectural and urban planning and spatial solutions in the city structure. The article presents typical landscaping schemes and their classification, as well as methods of using green spaces to improve the environmental, social and aesthetic status of cities.


2019 ◽  
Vol 11 (7) ◽  
pp. 2166 ◽  
Author(s):  
Shruti Lahoti ◽  
Mohamed Kefi ◽  
Ashish Lahoti ◽  
Osamu Saito

Faced with a lack of fine grain data availability, in rapidly emerging urban centers of developing nations, the study explored a mapping methodology to create thematic map of public urban green space (UGS). Using GIS, a thematic map of Nagpur city, India was prepared. The objective was to prepare spatial data that are relevant for planners and policy makers, with detailed UGS typologies and to update the status of overall availability and distribution of hierarchical recreational green spaces in the city. The spatial and non-spatial data with added attributes gathered through fieldwork resulted in a holistic dataset, with high accuracy of thematic map (0.93 kappa coefficient). The recorded status of different typologies as well as the distribution of recreational UGS shows disparity in the distribution of UGS. The eastern part of the city grossly lacks UGS provisions, which is compensated by the western part with larger availability of natural green spaces. The mapping methodology is novel and effective for recording qualitative status, analyzing their spatial distribution and prioritizing the provisions of UGS. Future research integrating these spatial data with more qualitative research can provide a holistic view on benefits of UGS provisions and thus facilitate effective UGS governance aiming towards better green infrastructure and hence broader urban sustainability.


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.


Author(s):  
Biancamaria Rizzo

The European policies acknowledge greenways and “Green Infrastructure” as strategically planned and delivered networks comprising the broadest range of green spaces and other environmental features. The Aniene River, linking the eastern suburbs of Rome to the City of Tivoli, has been envisaged in a multi-level approach as a Green-Blue Infrastructure able to hinder land use fragmentation and provide new continuity to remainders of open space. In turn, landscape is taken into account as a biodiversity reservoir, the scenery of outstanding cultural heritage and the relevant backdrop of ordinary life.


2021 ◽  
Vol 20 (3) ◽  
pp. 203-214
Author(s):  
Iwona Krzywnicka ◽  
Patrycja Jankowska

Motives: Urban green spaces have many functions in cities. They are used for recreational purposes, and they contribute to improving social interactions and community cohesiveness. For this reason, the location and area of urban green spaces should correspond to the size of the city and its population. Aim: The main aim of this study was to analyze the accessibility of managed and publicly available urban green spaces, referred to as public urban green spaces (PUGS), in four functional and spatial zones in the city of Białystok. The analysis included parks, green squares (pocket parks, ornamental green squares, boulevards) and public forests. The accessibility of PUGS was determined in view of their size and role in the urban spatial structure. Spatial data were processed in GIS and quantitative analyses. Results: The study demonstrated that the area of PUGS per capita meets the requirements of the World Health Organization (WHO), but the area of parks and green squares should be increased. The accessibility buffers of public green spaces often overlapped, in particular in downtown Białystok (Central zone) which is most abundant in these green infrastructure components. The analysis also revealed locations that do not have access to urban green spaces. The results of the study were used to formulate guidelines for incorporating new green spaces in Białystok and improving the urban spatial structure.


2014 ◽  
Vol 20 (2) ◽  
pp. 11-26 ◽  
Author(s):  
Frédéric Alexandre

The emergence of the modern concept of the sustainable city raises afresh the longstanding issue of the place and role of vegetation in urban and peri-urban areas in Europe. The awareness of biodiversity and the exploration of the services provided by ecosystems both lead to the development of ecological networks based on green spaces in and around the city. The establishment of these networks converges with the control of urban growth and urban sprawl, with the ‘green belts’. Drawing on the development of public policy governing the place of vegetation in Berlin, London and Paris, this article seeks to show the correspondences that have developed in the discussions of urban policy carried on in the major industrialized countries, and also the conflicting goals which these policies are meant to implement.


Land ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 134 ◽  
Author(s):  
Catarina de Sousa Silva ◽  
Inês Viegas ◽  
Τhomas Panagopoulos ◽  
Simon Bell

Although it is well-established that urban green infrastructure is essential to improve the population’s wellbeing, in many developed countries, the availability of green spaces is limited or its distribution around the city is uneven. Some minority groups may have less access or are deprived of access to green spaces when compared with the rest of the population. The availability of public green spaces may also be directly related to the geographical location of the city within Europe. In addition, current planning for urban regeneration and the creation of new high-quality recreational public green spaces sometimes results in projects that reinforce the paradox of green gentrification. The aim of this study was to explore the concept of environmental justice in the distribution of the public green spaces in two contrasting cities, Tartu, Estonia; and Faro, Portugal. Quantitative indicators of public green space were calculated in districts in each city. The accessibility of those spaces was measured using the “walkability” distance and grid methods. The results revealed that there was more availability and accessibility to public green spaces in Tartu than in Faro. However, inequalities were observed in Soviet-era housing block districts in Tartu, where most of the Russian minority live, while Roma communities in Faro were located in districts without access to public green space. The availability of public green spaces varied from 1.22 to 31.44 m2/inhabitant in the districts of Faro, and 1.04 to 164.07 m2/inhabitant in the districts of Tartu. In both cities, 45% of the inhabitants had accessible public green spaces within 500 m of their residence. The development of targeted new green infrastructure could increase access to 88% of the population for the city of Faro and 86% for Tartu, delivering environmental justice without provoking green gentrification. The outcome of this study provides advice to urban planners on how to balance green space distribution within city neighbourhoods.


2020 ◽  
Vol 46 (3) ◽  
pp. 185-196
Author(s):  
Emily Huff ◽  
Michelle Johnson ◽  
Lara Roman ◽  
Nancy Sonti ◽  
Clara Pregitzer ◽  
...  

Urban forests provide many benefits to residents and may also improve cities’ resilience, the overall capacity to recover from anthropogenic and natural disturbances. Resilience is often considered from an ecological, social, or social-ecological perspective. In this literature review, we synthesize past studies (n = 31) to explore resilience in urban forests and green spaces and to understand how social or ecological perspectives have been considered. We found studies that combine resilience and urban forests have been increasing over time. Definitions of both resilience and urban forests are highly variable, but generally the studies increasingly focus on a social-ecological systems approach. The most common theoretical framework applied to understanding urban forests and resilience is a risk and vulnerability assessment approach. Studies were spread across geographies, with some concentration near major research stations and universities with scientists who specialize in resilience and urban green spaces. As more attention is focused on the role of green infrastructure in contributing to urban resilience, we encourage the adoption of consistent definitions, theories, and indicators.


2020 ◽  
Vol 961 (7) ◽  
pp. 56-64
Author(s):  
G.Y. Morozova ◽  
I.D. Debelaia

Protected areas are key elements of the green infrastructure and ecological framework of cities. They have multifunctional significance as centers of investment attractiveness. The percentage of protected zones in the city’s total area is an indicator of its sustainable development. Their total area in Khabarovsk is 567.8 ha (1.5% of the city area)


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