Urban Forestry & Urban Greening最新文献_第2页

More fruits, more birds? How plant traits attract birds feeding in urban green spaces during winter

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-26 DOI: 10.1016/j.ufug.2025.128748

Kun Li , Wenhao Hu , Xi Chen , Mengyuan Zhang , Kemo Ye , Hao Zhu , Hongbo Zhao

Rapid urban development poses drastic changes in bird biodiversity. Trees in urban green spaces play an essential role in bird conservation, providing crucial nesting sites and food resources. The fruits of woody plants offer food resources for birds throughout most of the year, especially during winter. However, the dominant traits of woody plants that attract frugivorous birds to feed in urban green spaces during winter remain poorly understood. To evaluate the interaction network between frugivorous birds and heterogeneous woody plant species, and figure out how plant structure traits, fruit morphological traits, and fruit nutritional traits influence the diversity of frugivorous birds, a pilot sampling survey of frugivorous birds on 10 native woody plant species was conducted on a university campus in Hangzhou, China. The results show that (1) most frugivorous birds interact specifically with certain plant species in urban green spaces during winter; (2) plant-frugivorous birds interaction network showed a significantly low level of connectance, specialization, and nestedness; (3) in all functional traits of woody plants, fruit abundance (FA) contributes most to the richness and abundance of frugivorous birds; (4) in 3 types of functional traits, plant structure traits play dominant roles in determining the richness and abundance of frugivorous birds, with explanatory power of 24.43 % and 34.0 %, respectively. Moreover, combining plant structure traits and fruit traits can better explain the diversity of frugivorous birds. This study expands our knowledge of the effect of plant and fruit traits in attracting frugivorous bird diversity in urban green spaces during winter, which can provide insights for woody plant selection and planting design to conserve bird species diversity in urban areas.

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引用次数: 0

Mistletoe on urban trees in the city of Vienna, Austria

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-25 DOI: 10.1016/j.ufug.2025.128740

Yuliia Bilonozhko , Olha Tokarieva , Berthold Heinze , Jonathan Feichter , Andrea Kodym

A study of mistletoe on urban trees was conducted in Vienna, Austria, with the aim to determine the degree of mistletoe infection, and to identify host species that are highly susceptible or alternatively, resistant to mistletoe parasitism. At the same time, the dependence of mistletoe (Loranthus europaeus L; Viscum album L) occurrence on various factors was investigated. For this purpose, the tree cadastre of the city of Vienna was evaluated (the record is about 213,841 trees) and the Botanic Garden of the University of Vienna was visited. New host trees, not known in the literature, were described for the first time. The apparent spreading of mistletoes cannot be traced to a single factor; several are important and interacting. It could be shown that the presence of mistletoe in cities is closely related to the species of host tree, the location, the growing density of the trees, the age of the trees, as well as tree height. The host trees often showed marked adaptation of native tree species to mistletoe (i.e., fewer infections) and significant infection in introduced tree species. In some species, certain cultivars may be resistant or less susceptible to mistletoe than others. Among the damage or diseases observed on trees infected by mistletoe, bark damage occurred most frequently. Determining the distribution of mistletoe and the underlying factors is of great importance for green space management in cities, especially in relation to climate change.

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引用次数: 0

The heat-safe play index (H-SPI): A tool to compare relative thermal safety of outdoor playgrounds

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-25 DOI: 10.1016/j.ufug.2025.128747

Judi R. Walters , Sebastian Pfautsch

Outdoor play is essential for healthy childhood development. In urban areas, public playgrounds are the most commonly used spaces for outdoor play, but they are not always thermally safe. Visitors can suffer from heat-related illness and injury from ultraviolet radiation, radiant heat, hot surfaces and dehydration. Playground design features including shade, surface materials and water availability impact thermal safety, but differences between playgrounds are generally unknown. We developed a ‘heat-safe play index’ (H-SPI) to compare relative thermal safety (RTS) at 142 public outdoor playgrounds in Sydney, Australia. Results showed that RTS varied greatly among playgrounds: H-SPI scores ranged from –28–92 out of a possible maximum of 100. Thirty-five playgrounds had been recently upgraded, so the H-SPI was used to compare RTS before and after modifications. There was an overall small increase in RTS: 60 % of playgrounds had higher H-SPI scores, but 37 % had lower scores. The H-SPI enables councils to compare RTS of different design options when planning playground modifications, and provide heat-safety information to playground users. This information will allow better-informed decisions that promote health benefits from safer outdoor play for children, and will help to build heat- resilient communities in a warming urbanised world.

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引用次数: 0

The post-effects of landscape practices on spontaneous plants in urban parks 景观实践对城市公园自生植物的后效应

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-25 DOI: 10.1016/j.ufug.2025.128744

Chundi Chen , Ruobing Wang , Mingkun Chen , Juanjuan Zhao , He Li , Maria Ignatieva , Weiqi Zhou

Urban ecosystems, initially shaped by landscape practices (planning, design, construction and management of outdoor environments), continue to evolve under these influences. This dynamic process results in long-term ecological impacts and fosters complex biodiversity patterns, characterized by the co-existence of both cultivated and spontaneous species. While current literature predominantly focuses on broader land use/cover patterns and changes, there is insufficient attention to the indirect and secondary impacts on urban biodiversity that follow initial landscape practices. Using 38 urban parks in a high-density of built-up city, Shanghai, China as an example, this study examines how specific landscape practices, leave a lasting imprint on urban flora, particularly spontaneous plant species that thrive post-intervention. To better understand the impacts of different data types (e.g. compositional data), a suite of Mantel tests, Canonical Correspondence Analysis and Variance Partitioning Analysis was used at two design scales: the whole park and the finer, site scale. This study identifies 211 spontaneous plant species in 169 genera from 82 families. At the whole park scale, park area had the most significant positive correlation with spontaneous plant diversity, whereas patch density primarily influenced spontaneous plant composition. The study shows the crucial role of the “natural” landscape design style in fostering spontaneous plant diversity. At the site scale, factors related to water conditions, such as vertical stratification of the community, low-lying and canopy cover percentage, significantly impact the diversity and composition of spontaneous plant species. Importantly, our study reveals that cultivated plant species significantly influence the diversity of spontaneous plant assemblages, suggesting positive interactions at the whole park scale but shifting to negative interplays at the site scale. Our work facilitates a better understanding of the forces that (re)shape and determine the structural and functional attributes of an urban novel ecosystem and can inform landscape design to optimize urban biodiversity conservation.

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引用次数: 0

Three-decade urbanization effects on urban land surface phenology in the mid-high latitude Northern Hemisphere 北半球中高纬度地区三十年城市化对城市地表物候的影响

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-24 DOI: 10.1016/j.ufug.2025.128739

Peiyi Yin , Xuecao Li , Janne Heiskanen , Petri Pellikka

Urban vegetation phenology is a sensitive indicator of environmental changes and ecosystem responses to urbanization. Limited temporal coverage poses challenges to exploring the urbanization effect on vegetation phenology. In this paper, we adopt the double logistic model to characterize the decadal vegetation phenology dynamics of cities in the mid-high latitude Northern Hemisphere using composited images from Landsat satellites. We observe an advanced trend of the start of the season (SOS), delayed end of the season (EOS), and extended growing season length (GSL) of urban vegetation along with rapidly increased impervious surface area percentage (ISA%) over the past three decades (1991–2000, 2001–2010, and 2011–2020). The changes in LSP caused by urbanization were most pronounced in North America, followed by Europe and Asia. Globally, vegetation exhibited a consistent trend of earlier SOS along the urbanization gradients, with an average advancement of approximately 2.14 days per 5 % increase in ISA. EOS showed a delayed trend along the urbanization gradients, with an average delay of about 0.74 days per 5 % ISA. The advanced SOS and delayed EOS consequently contributed to a prolonged GSL with an overall extension rate of 2.87 days per 5 % ISA. Our results provide valuable insights into urbanization influences on vegetation phenology dynamics in cities over a long period and highlight the importance of considering the mechanisms driving the changes in vegetation phenology in response to urbanization.

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引用次数: 0

City walk or nature walk? Evidence-based psychological and physiological outcomes – A systematic review and meta-analysis

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-21 DOI: 10.1016/j.ufug.2025.128726

Lunxin Chen , Ruixiang Yan , Yuting Hu

Background

Anxiety and depression are global mental health issues, affecting approximately one-third of the population and imposing substantial economic and social burdens. Physical exercise, mainly walking, has been recognized as an effective non-pharmacological intervention that significantly improves symptoms of depression and anxiety. However, the benefits of walking in different environments require further investigation.

Objective

This review aims to delve into the impact of walking in natural versus urban environments on levels of depression and anxiety. Outcome measures will include scales assessing the degree of depression and anxiety, as well as heart rate responses.

Methods

A search was conducted across five databases—PubMed, Web of Science (all databases), Medline, Central, and Embase—from their inception to January 11, 2025. The quality of the literature was assessed using the GRADE scale, and all included study data were statistically analyzed using Stata software.

Results

A total of 10 studies, encompassing 457 participants, were included to evaluate the differences between walking in urban and natural environments. Meta-analysis results indicated that walking in natural environments significantly reduced levels of anxiety (SMD=1.30, p = 0.000), depression (SMD=1.11, p = 0.000), and heart rate changes (SMD=0.48, p = 0.000) and in contrast, walking in urban environments slightly increased levels of anxiety (SMD=-0.65, p = 0.000), with no significant impact on depression (SMD=-0.13, p = 0.106) and heart rate changes (SMD=-0.13，p = 0.379).

Conclusion

Walking in natural settings has a positive effect on reducing levels of depression and anxiety and slowing heart rate, while urban walking does not demonstrate similar benefits and may even have adverse effects on anxiety levels.

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引用次数: 0

Preference and perception of individuals for blue-green infrastructure in the promotion of climate-resilient cities: A visual experiment in Ireland and China

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-21 DOI: 10.1016/j.ufug.2025.128730

Jinxuan Wang , Karen Foley

Bluegreen infrastructure (BGI) combines hydrological measures and various socioecological functions and is being increasingly acknowledged as a means of promoting climate-resilient cities. Unlike ordinary familiar landscapes and typical underground conventional drainage infrastructure types, BGI is visible as a critical part of urban landscapes. However, studies analysing human BGI perception and preference for distinctive visual BGI appearance are still scarce. Using two cities (Dublin, Ireland and Xi’an, China) with different sociocultural and geographic contexts as case studies, human responses to BGI were studied by developing a photo comparison experiment (PCE) leveraging 15 visual stimuli that reflect five BGI dimensions. The main findings demonstrate that 1) stronger perceived naturalness is preferred over reduced perceived naturalness in BGI, but an excessive sense of naturalness can result in a lower preference for BGI; 2) the preference for perceived naturalness implied in BGI is associated with the perception of BGI landscape component value; and 3) there is a discrepancy between the preference pattern (personal preference with affective reaction) and the acceptance pattern (cognitive or rational understanding of the suitability of BGI implementation based on nonaffective reactions). By generating place-specific knowledge and comparisons, this study contributes to the planning, design and management of urban BGI in Dublin and Xi'an and highlights the need to consider the specificities of each city in BGI design and management, providing insights for other cities in these regions facing the need for wider BGI implementation.

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引用次数: 0

Leveraging nature for just cities: Planning nature-based solutions in Greece

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-19 DOI: 10.1016/j.ufug.2025.128731

Alice Wanner, Ulrike Pröbstl-Haider, Meike Jungnickel

An unequal distribution of green areas across cities coupled with the vulnerability towards climate change and global warming is causing segregation between residents who profit from nature-based solutions’(NbS) health and wellbeing benefits and those who do not. Residential segregation in urban settings goes far beyond income and socio-economic factors and is also evident in questions of environmental justice, participation and power – including how and where NbS are implemented. Delving into Greek cities, this paper raises the question of whether and how engagement with urban NbS differs within cities and among their residents. By applying a survey with an integrated discrete choice experiment (N = 1002) we were able to analyze the relevance of the type of green area, the effectiveness in temperature and microdust reduction, biodiversity enhancement, time and financial payments and the importance of participatory planning processes. The latent class analysis showed that urban segregation is recognizable within the sample. By investigating the differences in ability and willingness to support urban NbS, this paper recommends how green infrastructure can be implemented in a manner which enforces a more just distribution for those who need it most.

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引用次数: 0

Optimizing roadside vegetation using deep reinforcement learning to improve thermal environment

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-19 DOI: 10.1016/j.ufug.2025.128729

Bin Li , Changxiu Cheng

Urbanization has accelerated, exacerbating the urban heat island effect, particularly in roadside areas. Adjusting roadside vegetation has emerged as a crucial strategy to ameliorate the thermal conditions along roadsides. However, conventional methods are often limited by fixed vegetation types and layout schemes within a limited area, posing challenges in effectively responding to the diverse optimization needs of complex environments. To address this issue, this study proposes a multitype vegetation optimization model based on reinforcement learning. Using street view images, we extracted large-scale, high resolution tree-shrub-grass multitype vegetation. Simultaneously, the optimization and adjustment of the vegetation structure is formulated as a Markov decision process. A pretrained nonlinear model is used to construct a reward mechanism for the cooling effect, and then a reinforcement learning algorithm with the twin delayed deep deterministic policy gradient (TD3) is used for the optimization strategy. Empirical results reveal that in the primary urban area of Beijing, increasing tree density and reducing grass coverage are the most effective strategies for roadside cooling in high-density built-up areas. Conversely, increasing grass coverage is optimal for roadside cooling at urban peripheries. Furthermore, spatially integrated optimization led to a reduction in local land surface temperature (LST) of approximately 1–3 °C, with an average LST reduction of 1.04 °C across the study area. Densely clustered trees contribute to localized cooling effects, whereas dispersed grasses are more effective at promoting overall cooling. These findings offer valuable insights for the formulation of effective urban vegetation planning and management strategies aimed at enhancing the roadside thermal environment.

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引用次数: 0

Social licence to eradicate invasive pests of trees in urban landscapes: A review to prepare for the next incursion

IF 6 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-02-19 DOI: 10.1016/j.ufug.2025.128722

Angus J. Carnegie , Andrea Grant

Invasive exotic pests and pathogens (hereafter “pests”) of trees are moving and establishing across the globe at unprecedented rates causing enormous economic, environmental, cultural and social harm. Commensurately, eradication attempts of newly detected exotic pests are burgeoning, with many occurring in urban landscapes where pests are often first detected. While early detection of invading pests is critical to the success of an eradication program, there is a growing need to obtain social licence to operate during a biosecurity response, especially in urban landscapes where multiple stakeholders can hold divergent values on urban trees. Biosecurity measures to eradicate an exotic pest (e.g., tree removal or pesticide/biopesticide application) are often contentious in urban areas and have been identified as a limiting factor in eradication success. Gauging and gaining social licence for control measures in a biosecurity response is needed in advance of the next pest arrival. This review identifies key elements for attaining social acceptability of biosecurity measures before and during a biosecurity response in urban landscapes to assist community and biosecurity agencies prepare for the next exotic pest incursion. Several actions can be taken. Relevant stakeholders can be identified now, their expectations and knowledge base understood, and relationships formed to gain trust and participation in future responses. Understanding public acceptance of biosecurity measures will help gain and maintain social licence in different contexts and develop appropriate communication and engagement approaches. Raising stakeholders’ awareness of the risks and costs of biosecurity incursions and the value of eradication measures can be enhanced when using participatory or co-design approaches and subsequently increase social acceptability of response operations. Reviewing social alongside technical aspects of eradication programs can shed light on ways to improve future programs as well as programs in-progress to support operational success.

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引用次数: 0