scholarly journals Whose Urban Green? Mapping and Classifying Public and Private Green Spaces in Padua for Spatial Planning Policies

2021 ◽  
Vol 10 (8) ◽  
pp. 538
Author(s):  
Guglielmo Pristeri ◽  
Francesca Peroni ◽  
Salvatore Eugenio Pappalardo ◽  
Daniele Codato ◽  
Antonio Masi ◽  
...  

The rising environmental issues on contemporary cities urgently calls for sustainable planning policies. Implementation of nature-based solutions, ecosystem services, and green infrastructures associated to green spaces management is at present of paramount importance. In contrast to policies mainly focused on public greenery, the inclusion of private green in planning strategies might be a promising pathway. The general aim is mapping and classifying urban green spaces in Padua, a city of 93.3 km2 (Northeast Italy). Specific aims are (i) testing an NDVI-derived extraction from very high-resolution orthophotos; (ii) classifying property status; (iii) highlighting multilevel relationships and strategies for urban green spaces implementation and management; (iv) assessing greenery in relation to per capita population. By performing remote sensing and GIS analyses, a first detailed global map of urban green spaces in Padua was created; then, binary classification and thematic maps for rural/non-rural, public/private, municipal/non-municipal greenery were produced for all urban units. Results show that, among total green spaces (52.23 km2), more than half are rural. Moreover, private green spaces represent 80%, while within public areas (20%) less than 10% are municipal (5 km2). We therefore highlight scenarios for planning policies in Padua by providing tools to policymakers for an integrated management of green spaces, where private greenery might also contribute to ecosystem services implementation for common urban well-being.

2021 ◽  
Vol 13 (16) ◽  
pp. 9163
Author(s):  
Michèle Pezzagno ◽  
Barbara M. Frigione ◽  
Carla S. S. Ferreira

A loss of natural capital within cities and their surrounding areas has been noticed over the last decades. Increasing development associated with higher sealing rates has caused a general loss of Urban Green Spaces (UGS) within the urban environment, whereas urban sprawl and the improvement of road networks have deeply fragmented the surrounding landscape and jeopardized ecosystems connectivity. UGS are an essential component of the urban system, and their loss has a greater impact on, e.g., ecological and hydrological processes, threatening human well-being. Different types and spatial configurations of UGS may affect their own ability to provide ecosystem services, such as biodiversity support and water regulation. Nevertheless, the study of UGS spatial patterns is a research branch poorly addressed. Moreover, UGS analyses are mainly focused on public and vast green spaces, but seldom on informal, private, and interstitial ones, returning a myopic representation of urban green areas. Therefore, this study investigates the UGS spatial patterns within six Southern European cities, using the urban morphology analysis to assess all urban vegetated lands. Results revealed three main Urban Green Spatial Patterns (UGSPs): Fragmented, Compact, and Linear Distributions. UGSPs taxonomy represents a novelty in the urban morphology field and may have important implications for the ability to provide ecosystem services and, thus, human well-being.


2021 ◽  
Vol 31 (Supplement_2) ◽  
Author(s):  
Diogo Guedes Vidal ◽  
Catarina Patoilo Teixeira ◽  
Ricardo Cunha Dias ◽  
Cláudia Oliveira Fernandes ◽  
Walter Leal Filho ◽  
...  

Abstract Background Research suggests that access to urban green spaces (UGS) is crucial to support public and environmental health through ecosystem services (ES) provision. However, Cultural ecosystem services (CES), due to their connections to human emotion, a deep meaning, fulfilment, and motivation, have been less studied. CES provision in UGS are central to well-being, contributing to improving mental and physical health outcomes, as well as enhancing social cohesion. Accordingly, this systematic review aims to contribute to a better understanding of CES provision by UGS. Methods A systematic review was carried out in ScienceDirect (Article type = Research articles, years = 2000–2020), PubMed (Article type = journal article, text availability = Full text, year = 2000–2020) and Google Scholar (year = 2000–2020) databases. The keywords used in the search were: ‘urban green space’ OR ‘parks’ AND ‘cultural ecosystem service’ OR ‘cultural services’. Results The search returned 5417 results. After the screening process, 41 articles were reviewed. CES are mainly studied in Europe in the fields of social sciences and landscape management, linking human well-being, urban landscape management, and planning. The dimensions studied are (i) perception and assessment, (ii) recreation and mental and physical health, (iii) aesthetic appreciation/inspiration for culture, art, and design, (iv) tourism, and (v) spiritual experience and sense of place. Conclusions The study points out to the need for efforts to develop relational approaches to help understand what UGS users feel and experience. In particular, how UGS contribute towards promoting healthier and sustainable cities, and to fostering the well-being of people of all ages.


Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 105
Author(s):  
Teodoro Semeraro ◽  
Aurelia Scarano ◽  
Riccardo Buccolieri ◽  
Angelo Santino ◽  
Eeva Aarrevaara

In the context of urban land-use growth and the consequent impacts on the environment, green spaces provide ecosystem services for human health. The ecosystem services concept synthesises human–environmental interactions through a series of combined components of biodiversity and abiotic elements, linking ecological processes and functions. The concept of green infrastructure (GI) in the urban context emphasises the quality and quantity of urban and peri-urban green spaces and natural areas. In dense urban contexts, the applications of GI are limited and not applied to the potential urban spaces such as roofs and gardens. Often, roofs are characterised by impermeable paved surfaces with negative effects on human well-being, whereas garden designs do not consider social needs and environmental interactions. The role of urban stressors or the urban context as a driving force or pressure of urban green space is not always well understood and employed in the planning of green spaces. This is partly due to a knowledge gap between different science disciplines that operate on different scales, from single processes of the plants (which focus on plant responses to environmental stresses affecting human well-being) to urban ecosystems (which focus on the biodiversity and urban space planning–human well-being relationship). This can create a paradox, as green spaces that are not adequately designed might not produce the expected effects. In this paper, an overview of benefits and limitations of applying the ecosystem services approach when designing green spaces is presented. The focus is on the main urban ecosystem services provided by green roofs and community gardens such as GI that can represent strategies to provide ecological and social multifunctionality to waterproofed surfaces connected to the buildings and low-exploited gardens being the main areas that affect dense urban settlements, and thus, increasing the ecosystem services in the urban environment, such as reducing the Urban Heat Island, as well as flooding events. Specifically, the paper highlights (i) feedback between ecological processes and functions that support ecosystem services, (ii) urban environmental stresses in relation to disservices that these can create for human well-being and (iii) key issues that should be considered in the planning and design of urban ecosystem services. Such a new vision of urban ecosystem services highlights the need to look at GI as an active part of the urban space design in the built environment.


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.


2020 ◽  
Vol 12 (4) ◽  
pp. 1630 ◽  
Author(s):  
Peihao Song ◽  
Gunwoo Kim ◽  
Audrey Mayer ◽  
Ruizhen He ◽  
Guohang Tian

Urban green spaces play a crucial role in maintaining urban ecosystem sustainability by providing numerous ecosystem services. How to quantify and evaluate the ecological benefits and services of urban green spaces remains a hot topic currently, while the evaluation is barely applied or implemented in urban design and planning. In this study, super-high-resolution aerial images were used to acquire the spatial distribution of urban green spaces; a modified pre-stratified random sampling method was applied to obtain the vegetation information of the four types of urban green spaces in Luohe, a common plain city in China; and i-Tree Eco model was further used to assess the vegetation structure and various ecosystem services including air quality improvement, rainfall interception, carbon storage, and sequestration provided by four types of urban green spaces. The modeling results reveal that there were about 1,006,251 trees in this area. In 2013, all the trees in these green spaces could store about 54,329 t of carbon, sequester about 4973 t of gross carbon, remove 92 t of air pollutants, and avoid 122,637 m3 of runoff. The study illustrates an innovative method to reveal different types of urban green spaces with distinct ecosystem service productivity capacity to better understand their various roles in regulating the urban environment. The results could be used to assist urban planners and policymakers to optimize urban green space structure and composition to maximize ecosystem services provision.


2015 ◽  
Vol 19 (1) ◽  
pp. 77-93 ◽  
Author(s):  
Olivia Odom Green ◽  
Ahjond S. Garmestani ◽  
Sandra Albro ◽  
Natalie C. Ban ◽  
Adam Berland ◽  
...  

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