Urban Forestry & Urban Greening最新文献

{"title":"The influence of neighborhood competition on the morphological traits of urban individual tree landscape in Beijing","authors":"Jiheng Li ,&nbsp;Zuoyou Hu ,&nbsp;Hongxu Wei ,&nbsp;Chengyang Xu ,&nbsp;Guangpeng Sun ,&nbsp;Xuan Guo ,&nbsp;Xinna Zhang ,&nbsp;Bingqian Ma","doi":"10.1016/j.ufug.2025.129006","DOIUrl":"10.1016/j.ufug.2025.129006","url":null,"abstract":"<div><div>Neighborhood competition plays a crucial role in the development of phenotypic traits and adaptive strategies within ecological systems. However, the specific mechanisms by which neighborhood competition influences the relationship between urban tree morphological traits and landscape quality remain poorly understood. This study focuses on urban green spaces in Beijing, aiming to elucidate the effects of neighborhood competition on both the morphological traits of individual trees and overall landscape quality. Additionally, it explores the interaction between neighborhood competition and landscape quality in shaping tree morphological traits. A field survey was conducted within the Sixth Ring Road of Beijing, establishing 180 landscape plots. Nine visual morphological traits of trees were assessed, and four morphological indices were constructed through factor analysis: the space occupancy index, canopy uniformity index, canopy expansion index, and trunk-crown inclination index. Moreover, through the implementation of questionnaire-based surveys, the Visual Aesthetic Quality (VAQ) was quantitatively analyzed to elucidate the relationship between individual tree morphology and landscape quality. The results reveal that neighborhood competition significantly influences tree morphological traits. As competition grades increases, the space occupancy index, canopy uniformity index, and canopy expansion index decrease significantly, whereas the trunk-crown inclination index shows a marked upward trend. Additionally, the response of tree morphology to neighborhood competition is more sensitive in medium and small diameter trees. The study also finds that the impact of neighborhood competition on tree morphological traits varies significantly across different levels of landscape quality. Furthermore, based on the analysis using Kriging interpolation, it was observed that there is a north-south gradient in both the Competition Index (CI) and VAQ. By investigating the relationships among these three factors, this research provides scientific insights for optimizing urban green space species composition and enhancing landscape ecological functions.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 129006"},"PeriodicalIF":6.7,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vegetation phenology along urban-rural gradients across European capital cities","authors":"Amanda Ojasalo ,&nbsp;Hannakaisa Lindqvist ,&nbsp;Elias Willberg ,&nbsp;Tuuli Toivonen ,&nbsp;Eduardo Eiji Maeda","doi":"10.1016/j.ufug.2025.129004","DOIUrl":"10.1016/j.ufug.2025.129004","url":null,"abstract":"<div><div>Urbanization influences vegetation phenology which feedbacks on climate and ecology. Earlier Start of Season (SOS), later End of Season (EOS) and longer Growing Season Length (GSL) in cities compared to their surroundings is widely observed from optical remote sensing data and is associated with the urban heat island effect. However, these observations are limited by coarse spatial resolution, and finer spatial scale assessments indicate that phenology variation is also driven by vegetation characteristics. In this study we used the new Sentinel-2-based Copernicus High-Resolution Vegetation Phenology and Productivity dataset on a 10-meter spatial resolution to analyze SOS, EOS and GSL dynamics along urban-rural gradients in 37 European capital cities. We analyzed phenology change with linear regression and used random forest to model how land surface temperature, land cover and dominant leaf type influence SOS and EOS in different climate zones and across all cities. We found that urbanization advances SOS and EOS with relatively similar patterns among different climate zones, besides more varied responses in drier climates. Due to the earlier EOS, we did not observe lengthening in GSL, contrary to previous research. Increasing temperatures advance both SOS and EOS, whereas dominant leaf type plays a key role especially in EOS variation with non-tree vegetation having an advancing influence. Our results reveal new insights from urban phenology and its drivers under warming conditions, highlighting the significance of vegetation characteristics and high-resolution remote sensing data for urban phenology analyses.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 129004"},"PeriodicalIF":6.7,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring trust and communication between insurers, arborists, and homeowners","authors":"Matthew Gauldin ,&nbsp;Jason Gordon ,&nbsp;Arnold Brodbeck ,&nbsp;Jon Calabria","doi":"10.1016/j.ufug.2025.129003","DOIUrl":"10.1016/j.ufug.2025.129003","url":null,"abstract":"<div><div>To better address increasing risks related to climate change, insurance companies are continually changing their underwriting requirements and, in this process, trees have come under intense scrutiny. The processes that the insurance industry uses to assess, mitigate, and communicate tree-related risks are not well-understood by the public or tree care professionals. Yet, preliminary evidence in the North American news media and elsewhere suggests insurance companies’ increasing impact on homeowners’ decisions thereby threatening the environmental benefits produced by the urban forest. Our research employed qualitative interviews with insurance agents and arborists in the Southeastern United States. Drawing on risk communication theory, our research objective was to better understand the emerging phenomenon of insurers’ influence on homeowners’ yard tree choices. To this end, we explored the factors behind tree-related determinations by insurance companies and responses of the tree care industry. Results showed that agents act as the insurance underwriters’ mediators to build trust with their customers and overcome the obstacles that changing underwriting and organizational processes have influenced. Several arborists, as well as insurance agents, expressed being open to building better professional relationships despite disillusionment with the insurance industry. This study extends risk communication theory into the arboricultural and insurance industries as current theories have focused mainly on health and environmental disciplines. This approach helps to inform risk communication practices to build trust with customers, agents, and arborists, and to encourage greater use of arboricultural standard practices when determining climate-smart tree-related risk determination.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"113 ","pages":"Article 129003"},"PeriodicalIF":6.7,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-scale influence of urban green space vegetation on deposition and diffusion of atmospheric particulate matter: Implications for functional design","authors":"Xiaohan LI ,&nbsp;Zihan Xi ,&nbsp;Lin Zhang ,&nbsp;Chuanwen Wang ,&nbsp;Danchen Yang ,&nbsp;Dongyang Gao ,&nbsp;Tian Gao ,&nbsp;Ling Qiu","doi":"10.1016/j.ufug.2025.129001","DOIUrl":"10.1016/j.ufug.2025.129001","url":null,"abstract":"<div><div>Urban PM pollution remains a major environmental concern, with green space vegetation aiding its mitigation. Nonetheless, limited integration of deposition and diffusion effects across multiple spatial scales has hindered the development of practical guidelines for vegetation-based PM management. This study selected representative vegetation communities and tree species within the urban green spaces of Xianyang for three repeated sampling sessions. Field monitoring combined with particle-size analysis via elutriation was employed to analyze the temporal and spatial patterns of PM concentrations and deposition at both the community and individual plant scales. Cross-scale interrelationships were further assessed to infer the role of vegetation in PM deposition and diffusion processes. This study indicated: (1) All vegetation communities showed higher PM2.5 but generally reduced PM10 and TSP concentrations compared to open squares. closed mixed onelayered communities were most efficient in lowering PM10 and TSP concentration, while broadleaf-dominated communities showed the highest deposition per unit area, with deposition positively correlating with PM concentrations. (2) <em>Picea asperata</em>, <em>Pinus bungeana</em>, and <em>Juniperus chinensis</em> demonstrated the highest PM deposition per leaf area, whereas <em>Salix matsudana</em>, <em>Melia azedarach</em>, and <em>Styphnolobium japonicum</em> exhibited superior total deposition per plant. (3) Community structure had limited influence on species deposition capacity, while species composition significantly affected both deposition and concentration of the community. (4) PM deposition significantly increased over sampling periods. (5) PM concentrations decreased throughout the day. Meteorological conditions significantly affected PM concentration levels. These insights facilitate the development of function-oriented vegetation designs for urban green spaces aimed at optimized PM mitigation.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 129001"},"PeriodicalIF":6.7,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The roles of non-governmental organizations in the co-production of urban greenspaces in Beijing","authors":"Luquan Liang,&nbsp;Jennifer Day,&nbsp;Sun Sheng Han","doi":"10.1016/j.ufug.2025.129002","DOIUrl":"10.1016/j.ufug.2025.129002","url":null,"abstract":"<div><div>Co-production research primarily focused on the citizen-government dynamic, but the involving of non-governmental organizations (NGOs) as intermediaries reshaped the relationship. Little is known about how NGOs navigate their roles in co-production where state control remains strong and civil society operates informally. Understanding these dynamics is crucial because NGOs can either reinforce or challenge existing power structures, influencing the extent to which co-production leads to more inclusive urban governance. This study explores how formal and informal NGO-government relations, along with the strong and weak state embeddedness, shape the roles of NGOs in the planning, development, and management of greenspaces in Beijing, China. Data were collected from 42 in-depth interviews with NGO staffs, citizens, and governments, who actively engaged in greenspace co-production in Beijing. The findings reveal that in informal interactions, NGOs are initiators, promoters, and supervisors in co-producing greenspaces. They invite government participation, initiate joint efforts, and align their environmental missions with national policies to achieve influence and advocacy. Strongly embedded NGOs typically act as service providers, while less embedded NGOs serve as advocates, shaping policy influence and public mobilization. By unpacking the mechanisms through which NGOs operate in co-production, this study sheds light on how NGOs expand civic space, negotiate authority, and navigate structural constraints. The participation of NGOs in the co-production of greenspaces in China contributes to advancing procedural and recognitional justice.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 129002"},"PeriodicalIF":6.7,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Turning a new leaf: Social and land use drivers of urban tree canopy change in the Chicago Metropolitan Area 2010–2017","authors":"Jackson D. Lyall ,&nbsp;Lindsay E. Darling ,&nbsp;Dexter H. Locke ,&nbsp;Brady S. Hardiman","doi":"10.1016/j.ufug.2025.128999","DOIUrl":"10.1016/j.ufug.2025.128999","url":null,"abstract":"<div><div>Increasing the equitable distribution of tree canopy is a priority for many cities, and tree canopy change studies are needed to inform natural resource managers on how and for whom canopy is changing. This study examines relationships between tree canopy change, socioeconomic/demographic characteristics, and land use at the block group and county scales, in Cook County, Illinois from 2010 to 2017. At the block group level, spatial Random Forest Regression models the nonlinear relationships between six canopy metrics and socioeconomic, demographic, and land use predictors. We also tabulated canopy change across land use categories at the county scale. Tree canopy decreased by 11,634 ha—1.1 % of Cook County’s land area. Residential and transit land use types experienced the highest canopy gains and losses. Block groups with higher proportions of residential land, higher median income, home ownership rates, and lower housing densities experienced more canopy gains and losses. High housing density areas possessed less canopy, but lost less proportionally. Vacant and natural land were associated with canopy growth and persistence respectively. Diverse modeling suggests net canopy change calculations mask the presence of canopy turnover and that there is a need for a unification of canopy tabulations in the field. Protection of existing canopy as well as the investigation of vacant space for canopy growth may improve urban forest equity in a city where it could be on the rise.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"113 ","pages":"Article 128999"},"PeriodicalIF":6.7,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"More than the sum of its parts – Integrating the use of green area factor tool and biodiversity offsetting for no net loss urban planning","authors":"Elisa Lähde ,&nbsp;Liisa Varumo ,&nbsp;Eini Nieminen ,&nbsp;Joel Jalkanen ,&nbsp;Suvi Huttunen ,&nbsp;Panu Halme ,&nbsp;Katariina Väätänen ,&nbsp;Johanna Tuomisaari","doi":"10.1016/j.ufug.2025.128963","DOIUrl":"10.1016/j.ufug.2025.128963","url":null,"abstract":"<div><div>As part of the actions to fight biodiversity loss, the European Union is working on a restoration regulation demanding the principle of no net loss (NNL) state of biodiversity of urban green space. Applying this principle in urban planning may raise conflicts between biodiversity conservation and ecosystem services provision. Furthermore, integrating the NNL of biodiversity principle into urban planning cannot be isolated from existing planning tools or processes. Here we present a novel approach where the green area factor tool and biodiversity offsetting are integrated to achieve NNL of biodiversity in urban planning, while maintaining the necessary ecosystem services and avoiding the negative, unintended tradeoffs that may occur if only one of these tools is used in the planning process. We provide a model which combines the two approaches to create a holistic method to understand and govern both biodiversity and ecosystem services of urban greenery. The model is intended to be used as part of urban planning processes.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 128963"},"PeriodicalIF":6.7,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal visitor experience at urban horticultural expositions: Antecedents and positive social outcomes","authors":"Junpeng Chen ,&nbsp;Yuyang Chen ,&nbsp;Liuna Geng","doi":"10.1016/j.ufug.2025.129000","DOIUrl":"10.1016/j.ufug.2025.129000","url":null,"abstract":"<div><div>Global urbanization has exacerbated nature deficit disorder, diminishing urban residents’ capacity to recognize and appreciate local biodiversity, ultimately compromising their overall well-being. Urban green places, such as parks and gardens, are thus increasingly recognized as vital resources for reconnecting urban residents with nature. However, existing research often neglects the specific mechanisms through which nature-based experiences translate into positive social outcomes, and the role of immersive, flow-inducing design in maximizing these outcomes. Furthermore, few studies have examined how horticultural events, increasingly common in urban development strategies, can benefit urban residents. As such, guided by the Optimal Experience (Flow) Theory, we examined how visitors’ biodiversity literacy is linked to their visiting experiences. Data (<em>N</em> = 407) were collected over several weeks from residents in the surrounding areas visiting one major venue of the 2024 International Horticultural Exposition. Structural Equation Modeling results confirmed that visitors’ biodiversity literacy deficit, as indicated by their perceived difficulty of plant recognition, directly predicted flow experience, nature connectedness, and hedonic well-being, and indirectly predicted pro-environmental behaviors, and eudaimonic well-being. By distinguishing different flow dimensions, we further identified both a direct and an indirect (mediated by nature connectedness) positive relationship between flow experience and pro-environmental behaviors. This constitutes the first empirical evidence linking flow experience and nature connectedness, thereby contributing theoretically to the Optimal Experience Theory in the context of nature-based urban recreation. Practically, we highlight both the critical role of biodiverse green resources, and visitors’ appreciation, informing the design and management of urban forestry and greening initiatives.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 129000"},"PeriodicalIF":6.7,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Urban green space classification using Object-Based Image Analysis (OBIA) and LiDAR fusion: Accuracy evaluation and landscape metrics assessment","authors":"Mika Siljander ,&nbsp;Sameli Männistö ,&nbsp;Kirsi Kuoppamäki ,&nbsp;Maija Taka ,&nbsp;Olli Ruth","doi":"10.1016/j.ufug.2025.128997","DOIUrl":"10.1016/j.ufug.2025.128997","url":null,"abstract":"<div><div>With over two-thirds of the global population projected to live in cities by 2050, accurately mapping urban green spaces is increasingly important for sustainable development. This study integrates Object-Based Image Analysis (OBIA) and LiDAR data fusion to improve green space classification in three urban catchments in Helsinki, representing high (Itä-Pasila), intermediate (Pihlajamäki), and low (Veräjämäki) land-use intensities. Using high-resolution color-infrared (CIR) aerial orthophotographs enhanced by LiDAR-derived vegetation height data, the method effectively identified vegetated areas. Results were validated against a reference dataset using standard accuracy metrics and landscape structure indices. The results show that the OBIA method yielded green space area estimates within 1–4 % of the reference, but tended to produce more fragmented landscape configurations in high land-use intensity urban areas, resulting in higher numbers of patches and lower aggregation indices. Conversely, results in less urbanized Veräjämäki closely matched the reference data both spatially and structurally. These discrepancies underscore the inherent challenges in interpreting spatial patterns within complex urban morphologies, particularly where spectral information is limited by shading, like in Itä-Pasila. Nevertheless, the OBIA–LiDAR fusion approach demonstrated strong reliability in less structurally complex environments and provides valuable data for watershed-scale hydrological and ecological modeling.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 128997"},"PeriodicalIF":6.7,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hidden concerns amidst prosperity: A systematic review of international and Chinese community garden participation mechanisms from a comparative perspective","authors":"Ning Wang ,&nbsp;Han Liang ,&nbsp;Qi Mu ,&nbsp;Weilu Lv","doi":"10.1016/j.ufug.2025.128995","DOIUrl":"10.1016/j.ufug.2025.128995","url":null,"abstract":"<div><div>Community gardens have a long history in Europe and North America. In recent years, community gardens in China have also seen vigorous development. However, relevant Chinese research has focused on project practices, paying insufficient systematic attention to the mechanisms of stakeholder participation—which are critical to the sustained social function of community gardens—or future development paths. Behind this apparent prosperity may lie a sustainability crisis that requires in-depth exploration. This study develops an analytical framework to examine participation mechanisms in community gardens through three principal dimensions: participants, purposes of initiators, organisational models. We used the PRISMA systematic review method to sort out and compare 55 relevant literature and 110 typical cases from China and abroad. The analysis demonstrates that the sustainable development of community gardens depends on the achievement of a consensus among stakeholders and a stable organisational model. Within the Chinese context, the operational risks of community gardens mainly manifest as consensus divergence between government and individual participants, bottleneck limitations in the capacity of the third sector, and public participation dilemmas. In contrast, many international cases have demonstrated more mature participation mechanisms and dynamic balance strategies, providing important references for the development of community gardens in China. Based on research findings, this article proposes a systematic optimization path for the participation mechanism of community gardens from three aspects: policy refinement, functional expansion, and capacity building. It is expected to provide inspiration and reference for the practical innovation and future research of Chinese community gardens, and promote their long-term development.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"112 ","pages":"Article 128995"},"PeriodicalIF":6.7,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}