Urban Forestry & Urban Greening最新文献_第7页

Bridging policy and practice: Pursuing equity through green stormwater infrastructure 衔接政策与实践：通过绿色雨水基础设施追求公平

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2026-01-02 DOI: 10.1016/j.ufug.2025.129256

Chaeri Kim , Sarah Heck

As cities increasingly turn to green stormwater infrastructure (GSI) to meet federal Clean Water Act requirements, questions persist over if and how equitably these interventions are planned and implemented. This study examines how equity has been conceptualized and operationalized in the compliance-driven GSI programs of Cleveland, Philadelphia, and St. Louis. Drawing on analysis of 40 planning documents and 23 practitioner interviews, we show that equity is often subordinated to hydrologic performance and cost-effectiveness, reflecting the dominance of regulatory mandates. While planning documents from the early 2010s offered limited and technocratic treatments of equity, practitioners today frame equity as a dynamic, negotiated process shaped by governance roles, community trust, and institutional constraints. The findings also demonstrate significant opportunities for integrating equity into stormwater management. The results suggest that equity is not a binary achievement, but a dynamic and iterative practice shaped by institutional roles, regulatory mandates, and community partnerships. We argue that achieving equitable outcomes through GSI requires moving beyond compliance-oriented planning towards collaborative, cross-sectoral and community-centered approaches that center social and economic equity. While this study focuses on a specific approach within urban greening, it offers broader insights into the dynamics of urban sustainability and resilience planning, particularly in contexts governed by top-down planning frameworks. In doing so, we contribute to scholarly conversations on how equity can be integrated into institutional planning and environmental governance.

随着城市越来越多地转向绿色雨水基础设施（GSI）以满足联邦《清洁水法》的要求，这些干预措施是否以及如何公平地规划和实施的问题仍然存在。本研究考察了在克利夫兰、费城和圣路易斯的合规驱动型GSI项目中，公平是如何被概念化和实施的。通过对40份规划文件的分析和对23名从业者的访谈，我们发现公平性往往服从于水文性能和成本效益，反映了监管任务的主导地位。虽然2010年代早期的规划文件对公平提供了有限的技术官僚式的处理，但今天的从业者将公平视为一个动态的、协商的过程，由治理角色、社区信任和制度约束形成。研究结果还表明将公平纳入雨水管理的重大机会。结果表明，公平不是二元成就，而是由机构角色、监管要求和社区伙伴关系形成的动态和迭代实践。我们认为，通过GSI实现公平的结果需要超越以合规性为导向的规划，转向以社会和经济公平为中心的协作、跨部门和以社区为中心的方法。虽然本研究侧重于城市绿化的具体方法，但它为城市可持续性和弹性规划的动态提供了更广泛的见解，特别是在自上而下的规划框架下。在此过程中，我们为如何将公平纳入制度规划和环境治理的学术对话做出了贡献。

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引用次数: 0

From methodology to terminology: A systematic review of the methodological framework in green view index 从方法论到术语：绿色景观指数方法框架的系统回顾

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2026-01-02 DOI: 10.1016/j.ufug.2025.129243

Huaizhen Zhu , Panrong Cui , Xinge Nan , Ning Kang , Shuhua Li

With the increasing diversity of research topics and methodological approaches, Green View Index (GVI) has become a widely adopted indicator in evaluating urban greening effects. This study reviews 311 articles to systematically deconstruct the methodological framework into three core steps (viewpoint selection, imagery collection, and greenery identification) and summarizes four terminological variants accordingly. Findings reveal that the excessive reliance on online street view imagery has introduced spatial biases in assessing urban GVI status. Methodological inconsistencies undermine data validity, such as inconsistent sampling intervals, image types, and image acquisition times. While technical improvements have introduced evolving variants, terms tend to reflect semantic fragmentation rather than conceptual renovation. The interchangeable use of similar expressions leading to terminological inconsistency and ineffective literature retrieval has become a prominent issue. To improve conceptual clarity and support cross-study synthesis, we propose aligning image types with objective, visible, and visual GVI concepts and advocate for transparent reporting at each methodological step. Future efforts are necessary to conduct GVI studies for multiple cities and climates, improve species' seasonal identification, and advance GVI measurement across diverse green space types. The review contributes to the methodological standardization of GVI research and offers a framework for clarifying evolving terminology for environmental studies.

随着研究课题和方法的日益多样化，绿色景观指数（GVI）已成为评价城市绿化效果的一个广泛采用的指标。本研究回顾了311篇文献，系统地将方法框架解构为三个核心步骤（视点选择、图像收集和绿化识别），并总结了相应的四种术语变体。研究结果表明，对在线街景图像的过度依赖导致了城市GVI状态评估的空间偏差。方法上的不一致会破坏数据的有效性，例如采样间隔、图像类型和图像采集时间的不一致。虽然技术改进引入了不断演变的变体，但术语往往反映的是语义碎片，而不是概念上的更新。相似表达的互换使用导致术语不一致和文献检索效率低下已经成为一个突出的问题。为了提高概念清晰度和支持交叉研究综合，我们建议将图像类型与客观、可见和可视化的GVI概念对齐，并提倡在每个方法步骤中进行透明的报告。未来有必要开展多城市和气候的GVI研究，改善物种的季节性识别，推进不同绿地类型的GVI测量。该综述有助于GVI研究方法的标准化，并为澄清环境研究中不断演变的术语提供了一个框架。

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引用次数: 0

Resource phenology and transient dynamics shape urban avian guild stability: A modeling framework for urban green planning 资源物候和瞬态动力学影响城市鸟类种群稳定性：城市绿色规划的建模框架

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2026-01-02 DOI: 10.1016/j.ufug.2026.129262

Wei-Ta Fang , Hsien-Wen Lin

Urban ecosystems exhibit pronounced temporal and spatial variability, yet the mechanisms by which resource pulses and habitat heterogeneity shape avian community stability remain poorly understood. Using generalized linear mixed models and sensitivity analyses, we examined how fruit and nectar availability influence the transient dynamics of frugivore and nectarivore guilds across urban sites in northern Taiwan. Resource pulses during peak fruiting periods significantly enhanced frugivore stability, while nectarivores remained unstable due to spatiotemporally ephemeral floral resources. Spatial heterogeneity further modulated these effects: fragmented habitats limited fruit availability, thereby necessitating a dietary shift toward animal prey, which was associated with amplified community volatility. Our framework integrates diet composition, phenological timing, and “structural stability” to model non-equilibrium dynamics under urban change. These findings underscore the need for dynamic biodiversity models that account for transient responses to resource and habitat fluctuations, informing adaptive urban conservation strategies.

城市生态系统表现出明显的时空变异性，但资源脉动和栖息地异质性影响鸟类群落稳定性的机制尚不清楚。利用广义线性混合模型和敏感性分析，我们研究了果实和花蜜的可得性如何影响台湾北部城市地点的果食性和蜜食性行会的瞬态动态。结果高峰期的资源脉冲显著增强了果食性植物的稳定性，而蜜食性植物因其在时空上的短暂性而保持不稳定性。空间异质性进一步调节了这些影响：破碎的栖息地限制了水果的可得性，因此有必要将饮食转向动物猎物，这与放大的群落波动有关。我们的框架整合了饮食组成、物候时间和“结构稳定性”来模拟城市变化下的非平衡动态。这些发现强调需要动态生物多样性模型来解释对资源和栖息地波动的短暂响应，为适应性城市保护战略提供信息。

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引用次数: 0

The impact of crime on urban park visitation patterns: A longitudinal analysis in Austin, Texas 犯罪对城市公园游客模式的影响：德克萨斯州奥斯汀市的纵向分析

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129218

Yunpei Zhang , Zipeng Guo , Yang Song , Hongmei Lu

Urban parks generate multiple health and social benefits but crime can undercut these gains by deterring visits. Existing evidence rarely traces how specific crime types and timing influence daily foot-traffic, or whether impacts differ by neighbourhood socio-demographics. This study quantifies the short, medium, and long-term effects of family violence, non-family violent and non-family non-violent crime on park visitation in a mid-sized, data-rich city. Police NIBRS incidents from 2019 were spatially joined to SafeGraph and Advan mobile-device visits for 208 Austin, Texas parks using a 0.25-mile buffer. Daily visitor counts were regressed on 7, 30, and 60-day crime lags with park-by-date fixed effects, weather, and amenity controls. Interaction terms tested moderation by block-level income, race, and age. We explored heterogeneity descriptively but focus the modeling on offense-specific, time-windowed associations. Each additional non-family violent incident in the prior week predicts 1.5 fewer visitors per park-day. The 30-day violent-crime coefficient is approximately 2 visitors, implying a persistent though modest decline; the 60-day effect is not significant. Family violence and non-violent offenses show no aggregate effects across windows. Collectively, the results provide offense‑specific, time‑sensitive evidence on when violent‑crime exposure most depresses park use, introduce a replicable park‑day lagged crime‑exposure measure transferable to other cities, and offer practice‑ready guidance for targeting operational responses and inclusive programming during the short‑to‑medium windows when impacts are strongest.

城市公园带来了多种健康和社会效益，但犯罪活动会阻碍游客前往，从而削弱这些效益。现有证据很少追踪具体的犯罪类型和时间如何影响每天的人流量，或者影响是否因社区社会人口而异。本研究量化了家庭暴力、非家庭暴力和非家庭非暴力犯罪对一个数据丰富的中型城市公园游客的短期、中期和长期影响。2019年的警方NIBRS事件在空间上与SafeGraph和Advan移动设备对德克萨斯州奥斯汀208个公园的访问联系在一起，使用0.25英里的缓冲区。每日游客数量在7天、30天和60天的犯罪滞后中回归，其中包括公园按日期固定的影响、天气和设施控制。相互作用项通过分组收入、种族和年龄来测试适度性。我们对异质性进行了描述性的探讨，但将建模重点放在特定于攻击的、有时间窗口的关联上。前一周每增加一起非家庭暴力事件，每个公园日的游客数量就会减少1.5人。30天的暴力犯罪系数约为2人次，这意味着持续而适度的下降；60天的效果并不显著。家庭暴力和非暴力犯罪没有显示出跨窗口的总体影响。总的来说，研究结果提供了针对具体犯罪行为的、时间敏感的证据，说明暴力犯罪暴露在什么情况下最严重地影响了公园的使用，引入了可复制的、可转移到其他城市的公园日滞后犯罪暴露措施，并为在影响最强烈的中短期窗口期间针对操作响应和包容性规划提供了实践指导。

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引用次数: 0

Evaluating the role of community-led urban greenspace programming in advancing belonging, social connection, and health equity: A mixed methods study of Park People's Sparking Change Toronto program 评估社区主导的城市绿色空间规划在促进归属感、社会联系和健康公平方面的作用：对多伦多项目的混合方法研究

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129258

Nadha Hassen , Ayan Mohamed , Kobisha Rajeswaran , Wesley Reibeling , Cindy Hashie , Ayesha Talreja , Leah Yuyitung , Eugene Slonimerov , Mohiuddin Shah Golam , Joy Sammy , Natalie Brown , Kate Mulligan

Urban greenspaces have the potential to positively influence individual and population health and wellbeing. However, there are limited published evaluations of urban greenspace programming initiatives influencing social connection, belonging, and health equity, especially with equity-deserving and marginalized communities. This evaluation examined the impact of Park People's Sparking Change Toronto program, a national non-profit focused on urban greenspaces, on social connection, belonging, and health equity. An online survey was conducted in August and September of 2024 with 47 community members from the program along with four focus groups with 11 community members. Two additional focus groups were held with three City of Toronto staff and three Park People staff and two individual interviews were conducted with City of Toronto staff to accommodate schedules. We identified the importance of several factors including resourcing community-led urban greenspace programming, providing organizational support, championing community action, and addressing social access in fostering social connection, belonging, and health equity in urban greenspaces. Equity emerged as a central cross-cutting theme. This study presents three novel contributions to the literature on urban greenspaces and health: (1) the emphasis on taking a community-grounded, strengths-based approach to belonging and social connection; (2) a merged socio-ecological model (SEM) integrating both the material and social factors influencing belonging, social connection, and health equity, and (3) critical insights into the multi-scalar nature of barriers and facilitators and the importance of examining the dynamic interplay between levels and at different scales.

城市绿地有可能对个人和人口的健康和福祉产生积极影响。然而，对影响社会联系、归属感和健康公平的城市绿色空间规划举措，特别是对应得公平和边缘化社区的影响，发表的评估有限。该评估考察了Park People's spark Change Toronto项目的影响，该项目是一个专注于城市绿色空间、社会联系、归属感和健康公平的全国性非营利组织。在2024年8月和9月进行了一项在线调查，共有47名来自该项目的社区成员以及4个焦点小组的11名社区成员。另外与三名多伦多市工作人员和三名Park People工作人员举行了两次焦点小组讨论，并与多伦多市工作人员进行了两次单独访谈，以适应日程安排。我们确定了几个因素的重要性，包括为社区主导的城市绿色空间规划提供资源，提供组织支持，倡导社区行动，以及在促进城市绿色空间的社会联系、归属感和健康公平方面解决社会准入问题。公平成为了跨领域的核心主题。本研究提出了对城市绿地与健康文献的三个新贡献：(1)强调以社区为基础，以优势为基础的归属感和社会联系方法；(2)整合了影响归属感、社会联系和健康公平的物质和社会因素的融合社会生态模型（SEM）；(3)对障碍和促进因素的多尺度性质的批判性见解，以及研究不同层次和不同尺度之间动态相互作用的重要性。

{"title":"Evaluating the role of community-led urban greenspace programming in advancing belonging, social connection, and health equity: A mixed methods study of Park People's Sparking Change Toronto program","authors":"Nadha Hassen , Ayan Mohamed , Kobisha Rajeswaran , Wesley Reibeling , Cindy Hashie , Ayesha Talreja , Leah Yuyitung , Eugene Slonimerov , Mohiuddin Shah Golam , Joy Sammy , Natalie Brown , Kate Mulligan","doi":"10.1016/j.ufug.2025.129258","DOIUrl":"10.1016/j.ufug.2025.129258","url":null,"abstract":"<div><div>Urban greenspaces have the potential to positively influence individual and population health and wellbeing. However, there are limited published evaluations of urban greenspace programming initiatives influencing social connection, belonging, and health equity, especially with equity-deserving and marginalized communities. This evaluation examined the impact of Park People's Sparking Change Toronto program, a national non-profit focused on urban greenspaces, on social connection, belonging, and health equity. An online survey was conducted in August and September of 2024 with 47 community members from the program along with four focus groups with 11 community members. Two additional focus groups were held with three City of Toronto staff and three Park People staff and two individual interviews were conducted with City of Toronto staff to accommodate schedules. We identified the importance of several factors including resourcing community-led urban greenspace programming, providing organizational support, championing community action, and addressing social access in fostering social connection, belonging, and health equity in urban greenspaces. Equity emerged as a central cross-cutting theme. This study presents three novel contributions to the literature on urban greenspaces and health: (1) the emphasis on taking a community-grounded, strengths-based approach to belonging and social connection; (2) a merged socio-ecological model (SEM) integrating both the material and social factors influencing belonging, social connection, and health equity, and (3) critical insights into the multi-scalar nature of barriers and facilitators and the importance of examining the dynamic interplay between levels and at different scales.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"117 ","pages":"Article 129258"},"PeriodicalIF":6.7,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145894389","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}

引用次数: 0

Tree shade protection factors by Jacaranda mimosifolia: a summertime comparison of UV dosimetry and whole sky image analysis for residential urban environments 含羞草蓝花楹遮荫因子：住宅城市环境夏季紫外线剂量学与全天空图像分析的比较

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129260

Nathan J. Downs , Stijn Dekeyser , Adrian Dawes , Alfio V. Parisi , Harry J. Butler , Nawin Raj , Ravinesh C. Deo , Joanna Turner , Damien Igoe , Charlene Jackson , Catherine Chinnock , Melanie J. Beckman-Downs

This study aims to characterize Jacaranda mimosifolia in Queensland as a shade protection species for residential urban environments during peak summertime ultraviolet exposure periods, assessed near solar noon and taking into account changes in tree aspect measured relative to the main trunk and with variation in seasonal foliage. Ultraviolet polysulphone dosimeters and whole sky image (WSI) analysis was employed to derive site protection factors (PF) measured on the north, south, east and western sides of trees planted alongside urban street locations in southern Queensland, Australia for the summer months of December, January and February. Dosimetry and WSI analysis of the site PF measured in 5-minute intervals one hour before and following noon confirmed there is a seasonal variation in protection from ultraviolet radiation due to the presence of Jacaranda mimosifolia. Site PF varied from 2 to 12 with protection peaking at the end of summer when canopy foliage is greatest. Protection factors were shown to follow a monthly cycle confirming observed patterns in critical daytime PF either side of noon for the same species derived previously in research from southern Australia.

本研究的目的是将昆士兰州的蓝花楹（Jacaranda mimosifolia）作为夏季紫外线照射高峰时期住宅城市环境的遮荫保护物种，在太阳正午附近进行评估，并考虑相对于主干的树向变化和季节叶片的变化。采用紫外聚砜剂量仪和全天空图像（WSI）分析，得出了在澳大利亚昆士兰州南部城市街道旁种植的树木的北、南、东、西侧的站点保护系数（PF），测量时间为12月、1月和2月。剂量学和WSI分析在中午前和之后的5分钟间隔测量了该地点的PF，证实由于蓝花楹的存在，对紫外线辐射的保护存在季节性变化。立地植被覆盖度在2 ~ 12之间变化，在夏末冠层植被最繁茂的时候达到保护高峰。保护因子遵循一个月的周期，证实了先前在澳大利亚南部的研究中得出的同一物种在正午两侧的关键白天PF的观察模式。

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引用次数: 0

Enhancing access efficiency to the cultural ecosystem services of urban parks through a supply–demand planning framework 通过供需规划框架提高城市公园文化生态系统服务的获取效率

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129255

Zhiwei Yang , Jian Peng

Rapid urbanization has intensified the mismatch between residents’ demand for urban park cultural ecosystem services (CES) and the supply capacity of existing urban park systems. Taking the core districts of Kunming City, China as a case study area, we presented a supply–demand planning framework to enhance CES-access efficiency of urban parks. The framework quantifies residents’ CES-access demand from mobile-phone signaling data, delineates 10- and 15-minute walkable CES-access areas for small (1–5 ha) and large (>5 ha) parks, and ranks candidate parks by supply–demand efficiency, defined as the additional residents newly gaining CES-access per hectare of land required. Because CES-access demands for small and large parks are independent, residents need access to both tiers of parks. The results showed that the existing 88 small and 66 large parks could satisfy only 26.45 % and 33.11 % of their respective CES-access demands, leaving more than 90 % of residents without concurrent access to both tiers. Adding the top priority candidate parks (Levels 1–3) would raise coverage to 89.93 % for small parks and 90.94 % for large parks, and satisfy 85.11 % of the combined CES-access demand, while lifting the overall CES-access efficiency to 648.14 person·ha⁻¹, more than 3.5 times the current value. This study demonstrates that the supply–demand planning framework can effectively expand residents’ CES-access of urban parks, thereby improving social well-being.

快速城市化加剧了居民对城市公园文化生态系统服务需求与现有城市公园系统供给能力之间的不匹配。以昆明市核心区为例，提出了提高城市公园ces接入效率的供需规划框架。该框架根据手机信号数据量化居民的ces接入需求，划定小型公园（1-5 ha）和大型公园（5 ha）的10分钟和15分钟步行ces接入区域，并根据供需效率对候选公园进行排名，该效率定义为每公顷土地所需的新增居民获得ces接入。由于小型公园和大型公园的ces接入需求是独立的，居民需要访问这两层公园。结果表明，现有88个小型公园和66个大型公园分别仅能满足26.45% %和33.11 %的CES-access需求，其余90% %以上的居民无法同时访问两个层级。增加优先级最高的候选公园（1 - 3级），将使小型公园的覆盖率提高到89.93 %，大型公园的覆盖率提高到90.94 %，满足了85.11 %的综合ces接入需求，将ces总体接入效率提高到648.14人·ha−1，是现有水平的3.5倍以上。研究表明，供需规划框架可以有效扩大居民对城市公园的CES-access，从而提高社会福祉。

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引用次数: 0

Influence of urban ecotypes and built-up morphology on extreme heat events 城市生态类型和建筑形态对极端高温事件的影响

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129254

Renlu Qiao , Tao Wu , Zheyin Chen , Zexu Zhao , Zhiyu Liu , Shiqi Zhou , Mo Wang , Xi Meng , Xiaodong Xu , Zhiqiang Wu

Extreme Heat Events (EHEs) have intensified under global warming and rapid urbanization; however, the distinct impacts of vegetation types and urban morphology remain insufficiently quantified. This study evaluates how urban ecotypes and built-up morphology influence both the frequency (TX90p) and intensity (TXx7) of EHEs across China from 2011 to 2020, and explores the mediating role of evapotranspiration (ET). An ensemble learning framework (LightGBM combined with SHAP) was applied to identify nonlinear drivers, while a fixed-effects model was employed to assess ET-mediated pathways. Results indicate that vegetation exerts contrasting effects: a 29.8 % increase in grass cover lowers TXx7 by 0.05°C and TX90p by 0.07 %, whereas an 11.7 % increase in tree cover reduces TXx7 by 0.07°C but slightly raises TX90p by 0.02 %. Mediation analysis indicates that ET fully explains the effects of grass, and accounts for 75.9 % of shrub and 25.7 % of tree impacts. Built-up morphology shows dual roles: building density rising by 10.6 % reduces TX90p by 0.05 %, while building height rising by 20.37 m slightly increases TXx7 by 0.001°C. These findings provide new empirical evidence that vegetation types and urban form contribute differently to urban heat dynamics through ET mechanisms, offering critical guidance for targeted greening and morphological strategies to mitigate EHE risks, and providing scientific support for climate-resilient urban greening aligned with SDG 11 and SDG 13.

在全球变暖和快速城市化的背景下，极端高温事件不断加剧；然而，植被类型和城市形态的明显影响仍然没有充分量化。本研究评估了2011 - 2020年中国城市生态类型和建筑形态对环境污染发生频率（TX90p）和强度（TXx7）的影响，并探讨了蒸散发（ET）的中介作用。集成学习框架（LightGBM结合SHAP）用于识别非线性驱动因素，而固定效应模型用于评估et介导的途径。结果表明，植被对TXx7和TX90p的影响是不同的，草盖度增加29.8 %可使TXx7降低0.05°C， TX90p降低0.07 %，而林盖度增加11.7 %可使TXx7降低0.07°C， TX90p升高0.02 %。中介分析表明，ET充分解释了草的影响，占灌木影响的75.9% %，占乔木影响的25.7% %。建筑形态表现出双重作用：建筑密度上升10.6 %可使TX90p降低0.05 %，建筑高度上升20.37 m可使TXx7略微升高0.001°C。这些发现提供了新的经验证据，表明植被类型和城市形态通过ET机制对城市热动力学有不同的贡献，为有针对性的绿化和形态策略提供了重要指导，以减轻EHE风险，并为符合可持续发展目标11和可持续发展目标13的气候适应型城市绿化提供了科学支持。

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引用次数: 0

Gentrification and urban forest structure and stress: Lessons from two cities 高档化与城市森林结构与压力：两个城市的经验教训

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129257

Renata Poulton Kamakura , Clare E. Kazanski , Elizabeth Shapiro-Garza , James S. Clark , Lucie Ciccone , Lorenzo Maggio Laquidara , Rachel V. Holmes

Urban trees must be both present and healthy to provide vital ecosystem services, but there are documented inequities in tree canopy cover within U.S. cities. These inequities, like cities themselves, are not static. However, the influence of urban social and physical change itself on urban tree canopy structure, and especially tree stress, is poorly understood, which limits the efficacy of long-term urban forest planning. Gentrification, the process by which investments in a neighborhood displace low-income residents, can disrupt both social relationships and the physical space of the neighborhood, and can thus influence patterns of tree planting, investment in tree care, and likelihood of tree damage. Here, we quantify patterns in the number, diversity, and stress of street trees stress across neighborhoods in two regions experiencing gentrification: the West Side of Chicago, IL and Durham, NC. We found variation in the number, diversity and stress of street trees, including numerous regions where more than a third of street trees had high stress. However, the results do not indicate a uniform relationship between social and physical disruption and the number, diversity, or stress of trees. Our results and supplementary case study analysis hint at the role of municipal policies alongside non-governmental and community actions especially related to tree planting and potentially tree care. Research and management that considers the role of actors such as residents, local non-profits, and city governments together may be better able to adjust management based on local conditions to cultivate a more resilient urban street tree population.

城市树木必须既存在又健康，才能提供重要的生态系统服务，但在美国城市中，有记录表明树冠覆盖的不平等。这些不平等，就像城市本身一样，不是一成不变的。然而，人们对城市社会和自然变化本身对城市树冠结构的影响，特别是对树木应力的影响了解甚少，这限制了长期城市森林规划的有效性。中产阶级化，即社区投资取代低收入居民的过程，可能会破坏社区的社会关系和物理空间，从而影响植树模式、树木护理投资和树木受损的可能性。在这里，我们量化了两个正在经历中产阶级化的地区的街道树木的数量、多样性和压力模式：芝加哥西区，伊利诺伊州和达勒姆，北卡罗来纳州。我们发现了行道树的数量、多样性和压力的变化，包括超过三分之一的行道树承受高压力的许多地区。然而，研究结果并没有表明社会和物理破坏与树木数量、多样性或压力之间存在统一的关系。我们的研究结果和补充的案例研究分析暗示了市政政策以及非政府和社区行动的作用，特别是与植树和潜在的树木护理有关。考虑到居民、当地非营利组织和城市政府等行动者的作用的研究和管理，可能会更好地根据当地情况调整管理，以培养更具弹性的城市街道树木种群。

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引用次数: 0

Modelling future flowering trends of Alnus, Corylus, and Betula in Central Europe using the PhenoFlex framework 利用PhenoFlex框架对中欧桤木、榛木和桦木的未来开花趋势进行建模

IF 6.7 2区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Urban Forestry & Urban Greening

Pub Date : 2025-12-31 DOI: 10.1016/j.ufug.2025.129259

Natália Štefániková , Antonio Picornell , Jozef Dušička , Ondřej Rybníček , Janka Lafférsová , Jana Ščevková

Climate change is altering the flowering phenology of allergenic trees, with growing implications for human health and ecosystems. In Central Europe, Alnus, Corylus, and Betula (Betulaceae) are key spring-flowering taxa and major sources of airborne allergens. This study integrates long-term airborne pollen records to: (i) detect long-term trends in the start of main pollen seasons across five cities in Slovakia and the Czech Republic, (ii) fit phenological models to predict pollen exposure with the PhenoFlex model, and (iii) project future flowering shifts under two climate scenarios (SSP2–4.5 and SSP5–8.5). Our results reveal a significant advancement in Alnus and Corylus flowering, while Betula shows no clear trend. Projections suggest that warming will accelerate flowering in Betula but may delay or reverse current trends in Alnus and Corylus due to disrupted chilling accumulation. By integrating this model with aerobiological data, this study offers critical insights for allergen forecasting, urban greenery planning, and climate adaptation strategies in a region with limited prior coverage.

气候变化正在改变致敏树木的开花物候，对人类健康和生态系统的影响越来越大。在中欧，桤木、榛木和桦木（桦木科）是春季开花的主要分类群，也是空气中过敏原的主要来源。本研究整合了长期空气传播花粉记录，以：(i)检测斯洛伐克和捷克共和国五个城市主要花粉季节开始的长期趋势，（ii）拟合物候模型，使用PhenoFlex模型预测花粉暴露，（iii）预测两种气候情景（SSP2-4.5和SSP5-8.5）下的未来开花变化。结果表明，桤木和榛属植物的开花进度明显加快，桦属植物的开花进度不明显。预测表明，变暖将加速桦树的开花，但可能会延迟或逆转桤木和榛树目前的趋势，因为破坏了寒冷的积累。通过将该模型与空气生物学数据相结合，本研究为过敏原预测、城市绿化规划和气候适应策略提供了重要的见解。

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