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1.
Enhancing knowledge of urban foraging across different urban landscapes is an urgent matter given that about two-thirds of the world’s population is projected to live in urban areas by 2050, whilst 50 % of Africa’s population is expected to live in cities by 2030. This study was conducted in Lagos metropolis which is the economic hub of Africa’s most populous country. Data was collected using an in-person, semi-structured questionnaire from 347 persons who were 18 years or older to identify foragers and non-foragers, their sociodemographic profiles, and their foraging practices. Results revealed that about two out of three persons sampled forage to some degree. The collection happened more in domestic gardens (34 %) and streets (27 %) than in other foraging sites (such as unused lands, institutional grounds and lakes and riparian fringes). A total of 35 species were reportedly foraged within the metropolis, mostly for food (71 %) and medicine (26 %). Mango (Mangifera indica), pawpaw (Carica papaya), tropical almond (Terminalia catappa), fish (various species), bitter leaf (Vernonia amygdalina) and spinach (Spinacia oleracea) were the most gathered species. The distance travelled to foraging wild species ranged from 5 m to 25 km. The primary motivation for foraging was the acquisition of fresh and natural materials. However, some felt that foraging was a stressful activity. The unavailability of foraging sites and species was the major constraint to foraging in this megacity. Hence, efforts to increase the edible components of public green spaces and to provide free access could potentially allow more people to forage and make current foraging more secure. We suggest that making provisions for foraging in urban planning goals could contribute to the sustainable development of cities in Africa and elsewhere. 相似文献
2.
Our research seeks to expand the concept of urban environmental stewardship to include the everyday stewardship practices of urban nontimber forest products foragers. Ethnographic data from 58 urban foragers and 18 land stewards in the city of Seattle (USA) revealed that foragers reported using a variety of practices to enhance and minimize negative desirable species and their habitats. Many of these practices were identical to those practiced by restoration volunteers in formal programs and align with Seattle Parks Department management objectives. Foragers actively sought to learn more about what practices are sustainable; many mentored others in sustainable harvesting practices. Most foragers emphasized the importance of treating plants and their environment with respect. The land stewards voiced some concerns about foraging in city parks, but most were cautiously supportive of opening up the parks to foragers. The study results suggest that an opportunity exists for park managers to develop alliances with foragers so as to leverage foragers’ everyday stewardship practices and accomplish some of their park restoration objectives. Doing so will require park managers to acknowledge the positive contributions that humans can to make novel ecosystems and foragers to develop or strengthen self-regulation norms. 相似文献
3.
People attach multiple values to urban green spaces which play varied roles in cities. Properly designed monetary valuation surveys can ascertain their non-market value and underlying motives. This study investigates Hong Kong residents’ recreational use of urban green spaces and assesses the monetary value of these areas. A total of 495 urban residents from different neighbourhoods and socio-economic groups were interviewed. About 70% of the respondents visited urban green spaces at least weekly. Major companions during patronage were family members and then children. Exercises and clean air topped the list of visit purposes. The recreational pattern is associated with the cramped private living condition that pushes people to public open areas which are construed as extension of home space. The valuation question solicited overwhelming support, with over 80% of the respondents willing to pay to recover a possible loss of urban green spaces area by 20%. It yielded a monthly average payment of HK$77.43 (approx. 9.90 USD) per household for five years. Non-instrumental aspects played some role in the respondents’ bidding decision. The findings could assist green space planning and nature conservation, and hinted the need to consider the pluralistic community views and expectations in relevant public policies. 相似文献
4.
Mathias Hofmann Janneke R. Westermann Ingo Kowarik Elke van der Meer 《Urban Forestry & Urban Greening》2012,11(3):303-312
As urban green spaces are important for residential satisfaction, human preferences are a key criterion in their design. However, preferences may vary between landscape planners and residents, which may result in differences between residents’ demands and the actual design. With urban derelict land becoming an important part of the urban green infrastructure, information about the perception and acceptance by residents compared to formal urban parks is important for their planning and design. It was thus examined how different types of urban green spaces are perceived by landscape planners and residents. Criteria for the classification of green spaces used by both participant groups were compared, as were the criteria that influenced preference.Participants sorted and rated photographs of parks and urban derelict land in two different tasks. Hierarchical cluster analyses and multidimensional scaling analyses were used to characterize the participants’ perceptual space. By conducting multiple regression analyses the resulting perceptual dimensions were related to preference.The identified perceptual criteria used to distinguish green spaces were degree of canopy closure, artificiality vs. naturalness, prospect, physical accessibility, and beauty. For residents, the degree of canopy closure was the most important criterion for classification; for landscape planners, it was artificiality. Preferences varied between groups: whereas landscape planners preferred rather natural areas with low accessibility and high species richness, the residents showed a greater preference for formal parks.As a practical implication, the study suggests that residents generally accept urban derelict land as recreational areas if a minimum of maintenance and accessibility is provided. When designing green spaces, landscape planners may consider these differences in their preferences compared to residents. 相似文献
5.
Extensive evidence exists on the benefits provided by urban green space (UGS) but evidence is lacking about whether and how socio-economic benefits accrue to all residents or disproportionally depending on their socio-economic status or residential location. We model joint effects of socio-economic and locational attributes on attitudes and use of UGS in Brussels (BE). The analysis is based on a survey conducted along an urban–suburban continuum with respondents sampled across non-park public space. Patterns of use are depicted by the frequency and the distance travelled to the most used UGS. Attitudes are analyzed along three dimensions: willingness to (i) pay for UGS, (ii) trade off housing for green space and (iii) substitute private for public green. Our results stress the importance of separating effects of attitudes from socio-economic and locational effects to quantify UGS use, and suggest endogenous effects of green space with residential sorting. 相似文献
6.
Nature experiences and active mobility both deliver well-being and health benefits but have rarely been investigated together. Conceptualizations of nature experiences largely focus on intention, and the planned motivations for visits. However, nature experiences can also be perceived incidentally, if daily living activities like trips are encouraged towards green spaces. In a public participation GIS (PPGIS) survey of five local districts in Copenhagen, 517 respondents mapped 688 places along their walking or cycling shortcut trips through green spaces. This study investigated what types of green space provide opportunities for such shortcuts, what incidental nature experiences can be perceived there and the different responses of pedestrians and cyclists. This study also explored the relation between incidental nature experiences and green space characteristics in the form of tree cover density. Lastly, this study explored whether frequent short trips through green spaces relate to nature connectedness. The results show that public green spaces and urban cemeteries in Copenhagen allow for such shortcut trips. Enjoyment of pleasing views is the most perceived incidental nature experience. Pedestrians are found more prone to experience surprise, inspiration and emotion, while cyclists prefer shortcuts close to water, which they value highly. The study suggests that high tree cover density is key to delivering incidental nature experiences. Furthermore, the study shows that people who make frequent trips through green spaces have higher levels of nature connectedness, indicating that incidental nature experiences during shortcut trips trigger the reconnection of people and nature. The study’s results support a synergistic approach to integrating green spaces and active mobility in planning and management practice, where incidental nature experiences should be emphasized. 相似文献
7.
Effective urban planning, and urban green space management in particular, require proper data on urban green spaces. The potential of urban green spaces to provide benefits to urban inhabitants (ecosystem services) depends on whether they are managed as a comprehensive system of urban green infrastructure, or as isolated islands falling under the responsibility of different stakeholders. Meanwhile, different urban green space datasets are based on different definitions, data sources, sampling techniques, time periods and scales, which poses important challenges to urban green infrastructure planning, management and research. Using the case study of Lodz, the third largest city in Poland, and an additional analysis of 17 other Polish cities, we compare data from five publicly available sources: 1) public statistics, 2) the national land surveying agency, 3) satellite imagery (Landsat data), 4) the Urban Atlas, 5) the Open Street Map. The results reveal large differences in the total amount of urban green spaces in the cities as depicted in different datasets. In Lodz, the narrowly interpreted public statistics data, which are aspatial, suggest that green spaces account for only 12.8% of city area, while the most comprehensive dataset from the national land surveying agency reveals the figure of 61.2%. The former dataset, which excludes many types of green spaces (such as arable land, private and informal green spaces), is still the most commonly used. The analysis of the 17 other cities confirms the same pattern. This results in broader institutional failures related to urban green infrastructure planning, management, and research, including a lack of awareness of green space quality (e.g. connectivity) and benefits (ecosystem services), and the related political disregard for urban green spaces. Our comparison suggests that a better understanding of green space data sources is necessary in urban planning, and especially when planning urban green infrastructure. 相似文献
8.
Urban greenspaces (UGS) are increasingly recognized for their potential to provide provisioning services to residents foraging for food and other plant materials. The alignment of tree species composition with foraging practices in cities, and the provisioning services harvesters derive, in UGS remains less well studied. To address this gap, we draw on existing tree species data and forager practices in the City of Philadelphia to estimate the alignment between tree species composition and foraging in the city. Our approach uses an existing forest inventory, an international online database of useful species, online information for residents about useful species found in the city, and novel data about forager practices. By considering these datasets in tandem, we are able to identify useful tree species, species likely of interest to foragers, and species actively foraged, and estimate the relative abundance of species in each category. Our results suggest that managers may be able to analyze proxy data, through use of online quality ratings, to rapidly identify and assess forager interest in species found in their urban forests. 相似文献
9.
This paper conceptualises and evaluates so-called co-management zones as an approach for user participation in urban forestry, specifically in the management of public woodland edges bordering residential areas. Co-management zones can metaphorically be viewed as ‘ecotone-like’ spaces, i.e. zones where overlapping interest – in this case residents’ and municipal authorities’ – can be used to create richness and meetings rather than boundaries. Building on the perspectives of ecotone thinking and governance arrangements, co-management zones in the Danish residential area of Sletten in Holstebro were evaluated. The presented case study combined interviews with residents and interviews with three key green space professionals who had led the planning, design, establishment and management of the woodland and the implementation of co-management. The resident participation in the co-management zone was also assessed and photo documented in a field survey, categorising individual households according to type and degree of physical signs of participation. Findings illustrate the potential of co-management zones to initiate collaboration between residents and public woodland managers in creating recreationally valuable and varied meetings between private gardens and urban woodlands. Challenges with establishing co-management zones were also highlighted, especially the need for clear guidelines and continuous communication between residents and the municipality. Perspectives and implications related to residents, managers and green space quality are discussed. 相似文献
10.
Urban green spaces provide important ecological, environmental, and cultural benefits, including biodiversity conservation and human wellbeing. However, a significant portion of urban green space is currently managed as highly manicured grassy lawns that provide limited ecosystem services. Managing urban green spaces as diverse meadows can have a multitude of ecosystem benefits such as biodiversity conservation, stormwater infiltration, and aesthetics. Relatively little is known about the range of ecosystem services or disservices in managing urban green spaces as lawns versus meadows. In this paper, we separately characterize three major categories of ecosystem services and disservices (provisioning, regulation and maintenance, and cultural) delivered by urban lawns and meadows while highlighting several trade-offs and synergies associated with urban lawn and meadow management strategies. Additionally, we suggest specific research priorities to better evaluate ecosystem services and disservices across these urban green spaces. Understanding ecological, environmental, and cultural trade-offs and synergies of managing different urban green spaces is key to maintaining multiple ecosystem services in urban environments. 相似文献
11.
Public green spaces are fundamental and indispensable to urban settlements, given the diverse social, economic and environmental benefits that they can provide. However, the absence of knowledge regarding the allocation and access status quo consistently hinders the suitability and rationality of follow-up green space planning, which could eventually impair the livability and sustainability of cities. This study evaluates disparities in access to public green space for urban residents and the spatial mismatches among public green space provision, residents’ visits and the demands of socially vulnerable groups within the Central City of Shanghai. The results show that disparities in public green space accessibility exist pertaining to social status and household composition status. Sub-districts with higher social status or larger proportions of family households composed by children and married inhabitants tend to have better public green space access. In contrast, sub-districts with larger proportions of aged or unemployed populations unexpectedly show worse public green space access. To a certain degree, this reduced access can be considered to be an environmental injustice. Additionally, the mismatches among public green space provision, residents’ visits and the demands of socially vulnerable groups are observed to vary in space, indicating potential problems of resource shortage, supply-demand mismatch, underuse and congestion. The findings could offer urban planners and policy-makers insights into optimizing public green space resources and equitably providing proximal public green space to urban residents, especially vulnerable groups, such as children, the elderly and the unemployed. 相似文献
12.
The objective benefits that humans derive from natural ecosystems and their enduring manifestation in urban green spaces (UGS) is well-know. Nevertheless, citizens’ preference, and perceived necessity of UGS is not always evident and therefore often not accounted for, especially in the context of urban planning decisions, where it could positively influence the effectiveness of greening strategies. This information is especially important in the Mediterranean islands, due to their unique character. Here we address these aspects, including the way they are affected by UGS perceived adequacy, accessibility, maintenance, distance, and other self-reported obstacles using a questionnaire completed by 703 residents of the Island of Crete, Greece. To integrate results, main covariates are compiled into the newly developed public UGS approval index. Survey results show that, 87.82 % of the participants consider public UGS highly necessary for their wellbeing, while only 69.22 % consider private UGS equally necessary. Nevertheless, private UGS were the most frequently visited green at 16.3 ± 0.7 days/month. Public UGS is considered more necessary for female respondents, under 35 years, living in an apartment in the city. However, it emerged that despite the significantly higher need for public UGS in the urban centers of the island, residents consider UGS inadequate and often inaccessible for people with mobility problems. Integration of the results in the new approval index, shows that citizens of Crete, are on average neutral or disapprove of local public UGS. The outcomes can be used for targeted interventions at existing and strategic planning in new UGS. 相似文献
13.
Urban green spaces play essential roles in regulating the global carbon cycle and reducing carbon dioxide (CO2) emissions. However, research on the carbon sequestration efficiency of urban public green spaces, which is closely related to the human settlement environment, has not received enough attention. Thus, we systematically analyzed the existing literature in the Web of Science core database using bibliometrics and network analysis combined with the CiteSpace visualization tool. The aim of this review was to elucidate the focus and development trend of research conducted between 2007 and 2022 on carbon sinks in urban public green spaces. Our results demonstrated that: 1) Numbers of related publications are increasing annually, indicating that the subject is receiving increasing global attention. Related research topics primarily focus on two aspects: carbon sink measurement methods and sustainable carbon sink design for urban public green spaces. 2) Methods for measuring and monitoring carbon sinks in the urban public green spaces include sample plot measurement, the assimilation method, the micrometeorological method, the remote sensing (RS) estimation method, and laboratory work. Most methods follow the forestry system approach and lack the methods and techniques to directly assess the carbon sink effectiveness of urban public green spaces. 3) Key factors affecting the carbon sink capacity of urban public green spaces are: plant species selection, plant community structure, green space characteristics, and maintenance management. 4) Future research should focus on encouraging public participation in the design of sustainable carbon sinks in urban public green spaces, advancing biodiversity research on carbon sinks in urban public green spaces, and enhancing the precision of measurements while addressing regional differences. This study contributes to the integration of research on the effectiveness of carbon sinks in urban public green spaces and provides a theoretical reference and guidance reduces prospective urban emission and achieves climate goals. 相似文献
14.
Cemeteries are not only burial places that provide a public service. They are also green urban spaces with cultural and natural qualities and could be integrated into the green infrastructure planning system. In this study, we explore the extent to which environmental qualities and functions are ascribed to urban cemeteries in the municipal master plans, green infrastructure plans and websites of the capital cities of Scandinavia. In addition, we conduct a focus-group interview in Oslo with six municipal employees representing green space planning/management, cultural heritage and cemetery administration/management, focusing on a broad perspective of qualities ascribed to urban cemeteries. The document study shows that, across the Scandinavian countries, cemeteries are mainly included in the concept of green infrastructure but they are not ascribed qualities similar to those ascribed to public green spaces; instead, most qualities are related to cultural history. However, Copenhagen municipality has a more inclusive approach, describing the cemeteries as green spaces and inviting people to use them for recreational purposes. The municipality even has a policy document with a strategy on how to combine the primary function of a burial site with new needs for recreational space. In the focus-group interview, cemeteries are described as static places, peaceful and quiet places, green spaces, spaces in which to experience darkness, and places for all (multiple use). There is relatively high agreement among interviewees about the recreational qualities of cemeteries, even though the cemetery administration/management emphasizes several times that its main focus is on accommodating the bereaved and their relatives. In the discussion, we focus on differences between the different Scandinavian countries in the qualities and functions ascribed to cemeteries, and examine potential explanations for why cemeteries are mostly described as green spaces, part of the green infrastructure, but treated as private green spaces in the urban planning context. 相似文献
15.
Managing municipal green space for ecosystem services 总被引：1，自引：0，他引：1
Cities are the dominant form of human settlement. As centers of economic growth and population they are focal points of both ecological disturbance (through resource consumption and land conversion) and the provision of public goods. Ecosystem services provided by municipal forests and green space are positioned to address both these arenas. While technical means to mainstreaming this approach have grown, the importance municipal foresters’ departments place on pursuing this objective and their department's engagement in actions necessary for its realization is under-researched. I surveyed the membership of the Society for Municipal Arborists to address this gap. I found that municipal foresters perceived the management of municipal green space to enhance ecosystem services to be increasingly significant to the goals and actions of their departments. Survey respondents expected this role to grow in importance, matching or exceeding some traditional objectives of their profession. While most perceived traditional services such as tree planting and maintenance, and social outputs like beautification and enhancing public health to remain high departmental priorities; respondents rated managing municipal green space to produce ecosystem services such as enhanced energy and climate management, water quality and habitat and biodiversity as more important to their department than traditional objectives such as maintenance of property values and protection of power lines. As responsibility for the management of urban green space resides predominantly at the municipal level, the importance municipal foresters’ departments place on managing for ecosystem services is fundamental to advancing this strategy for the delivery of public goods in urban centers. 相似文献
16.
This study focuses on the importance of subjective perceptions in the valuation and conservation of urban green spaces. Because physical attributes of the natural environment are filtered through individuals’ perceptions, their self-reporting of the extent of green spaces fluctuates according to their biases. However, the determinant of people’s self-reporting of the extent of green spaces within neighborhoods remains unclear. An examination of the relationship between the physical attributes of green spaces and the self-reported extent of green spaces is required to address this uncertainty. Accordingly, two separate studies were conducted by establishing two types of data on green spaces: physical data derived from a Geographical Information System and questionnaire-derived self-reported data. Multiple regression analysis was performed to compare the effects of different types of physical green spaces on the self-reported extent of green spaces. The results indicated that residents’ perceptions of same-sized green spaces differed considerably depending on their type. To ascertain the effects of subjective perceptions on economic valuation, a life satisfaction approach was subsequently applied within two separate analyses. In the first analysis, reflecting a normal pattern, the relationship between life satisfaction and the area of green space was examined, and in the second analysis, the self-reported extent of green spaces was used as an intermediate variable between green spaces and life satisfaction. A comparison of the estimated values from the two analyses revealed significant differences, depending on whether self-reported green spaces were used as an intermediate variable. Specifically, values of urban green spaces fluctuated more than those of forests in the case of self-reported green spaces. Although urban planners and experts generally emphasize the physical attributes of green spaces, such as area, these results indicate that it is critical to consider people’s perceptions. 相似文献
17.
Cristian Ioan Iojă Simona Raluca Grădinaru Diana Andreea Onose Gabriel Ovidiu Vânău Alina Constantina Tudor 《Urban Forestry & Urban Greening》2014,13(4):704-713
Urban green infrastructure supports resilience in cities and promotes sustainable resource management. Small green areas, including school green areas (SGAs), are an important component of urban green infrastructure, playing a key role in supplying cities with educational services. This article describes how SGAs can amplify an urban green area's connectivity and multifunctionality. The analysis was performed in Bucharest as a case study. A survey based on questionnaires was used to obtain data regarding green spaces within public schools. A total of 411 administrators from 461 public schools participated in the survey for a response rate of 89.1%. Information from the questionnaires was augmented with spatial data of SGAs and public green spaces, i.e., parks and city gardens. Using parametric and nonparametric statistical analysis, we first identified the variables that determine an SGA's presence and size. Potential connectivity assessment results showed that most of the schools that lack or have small-sized SGAs have the possibility to cover their green space deficit by developing activities within nearby public green spaces. A structural connectivity assessment of SGAs toward other public urban green areas revealed that SGAs are an important element of the urban environment by serving as stepping stones to species flow. The multifunctionality of the SGAs was emphasized through the educational services they provide, being involved in pupils’ daily activities. The increased connectivity and multifunctionality of urban green infrastructure through small, specialized green areas, such as SGAs, is an indicator of the fact that such areas can be used to ameliorate the deficit of green space in major urban areas. 相似文献
18.
Urban green spaces (UGS) provide important contributions to people. Yet, UGS planning requires better understanding of by whom and where such contributions are being valued or missed. Based on a mixed-methods online survey and choice experiment with residents of Wellington in Aotearoa New Zealand, we analyse how much and why residents value UGS and their benefits when deciding where to live and how socio-economic and spatial factors might impact nature orientation and opportunity for satisfactory local UGS. We find that local UGS are an important residential choice criteria for the majority of respondents, especially in the context of Wellington’s intensification plans. However, we show that socio-economic and spatial factors significantly impact whether someone values and is satisfied with UGS in proximity to their place of residence. Our findings call for careful scoping of a city’s population and spatial structure when planning for equitable UGS provision. More holistic approaches to green space planning are needed to address contextualities and the complex interdependencies between nature orientation and opportunity and to plan for green space distributions that provide opportunities now and help shaping nature orientation for future generations. 相似文献
19.
Increasing human populations and rapid urbanization in sub-Saharan Africa have prompted the development and maintenance of urban green infrastructure, including urban trees for sustainability, human wellbeing, liveability and climate resilience. However, there are still insufficient amounts and large inequities in the distribution of trees between and within towns and cities of the Global North and South. In South Africa, urban green space planning and planting are encoded in several policies at national level. However, these policies are rarely translated into specific guides, standards or actions, and consequently disparities in urban trees and green space distribution persist. This study assessed the prevalence of urban trees in domestic gardens in low-cost housing areas (LCHAs) of eight small to medium-sized towns in the Eastern Cape province of South Africa and examined residents’ perceptions in this regard. This was done via surveys with 800 households in old and recently developed LCHAs. The results revealed that most households (52 %) had at least one tree in their yard, with more households in the older neighbourhoods (60 %) reporting having trees than in the newer ones (44 %). Most of the trees (66 %) had been deliberately planted as opposed to natural regeneration. Experience of formal urban tree planting programs was low, but 75 % of residents expressed willingness to participate in the future, preferably in tree planting and maintenance. Urban green spaces and trees cannot be an afterthought in the development of sustainable human settlements, and municipal plans should reflect tangible commitments in this regard. Meeting goals for greener LCHAs requires the involvement of local residents, and for municipal authorities to be receptive to the wishes of residents and willingness to green their residential areas. 相似文献
20.
The urban forest provides our communities with a host of benefits through the delivery of ecosystem services. To properly quantify and sustain these benefits, we require a strong baseline understanding of forest structure and diversity. To date, fine-scale work considering urban forest diversity and ecosystem services has often been limited to trees on public land, considering only one or two green space types. However, the governance of urban green spaces means tree species composition is influenced by management decisions at various levels, including by institutions, municipalities, and individual landowners responsible for their care. Using a mixed-method approach combining a traditional field-inventory and community science project, we inventoried urban trees in the residential neighbourhood of Notre-Dame-de-Grȃce, Montreal. We assessed how tree diversity, composition and structure varies across multiple green space types in the public and private domain (parks, institutions, street rights of way and private yards) at multiple scales. We assessed how service-based traits – traits capturing aspects of plant form and functions that urban residents find beneficial – differed across green space types, with implications for the distribution of ecosystem services across the urban landscape. Green space types displayed meaningful differences in tree diversity, structure, and service-based traits. For example, the inclusion of private trees contributed an additional 52 species (>30% of total species) not found in the local public tree inventory. Trees on private land also tended to be smaller than those in the public domain. Beyond patterns of tree richness, size, and abundance we also observed differences in the composition of tree species and service-based traits at site-scales, particularly between street rights-of way and private yards. While species composition varied considerably across street blocks, blocks were very similar to one another in terms of mean service-based traits. Contrastingly, while species composition was similar from yard to yard, yards differed significantly in mean service-based trait values. Our work emphasises that public tree inventories are unlikely to be fully representative of urban forest composition, structure, and benefits, with implications for urban forest management at larger spatial scales. 相似文献