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

Psychological well-being benefits of urban greenness: A mixed methods approach using psycho-physiological indicators and interviews 城市绿化的心理健康益处：使用心理生理指标和访谈的混合方法方法

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-21 DOI: 10.1016/j.ufug.2026.129307

Qiyan Li , Zhiqiang Feng , Jamie Pearce , Catharine Ward Thompson

{"title":"Psychological well-being benefits of urban greenness: A mixed methods approach using psycho-physiological indicators and interviews","authors":"Qiyan Li , Zhiqiang Feng , Jamie Pearce , Catharine Ward Thompson","doi":"10.1016/j.ufug.2026.129307","DOIUrl":"10.1016/j.ufug.2026.129307","url":null,"abstract":"<div><div>Urban green spaces are beneficial for residents’ psychological well-being. Recent studies based on neural experiments have identified correlations between physiological responses and varying urban green environments. However, there is limited research exploring the precise quantitative relationship, leaving uncertainty about the optimal amount of greenery for positive associations on psychological well-being. Moreover, the underpinning interpretations of physiological and psychological indicators are lacking. This study recruited 94 university students in Nanjing, China to conduct a neural-based experiment and investigate the quantitative relationship between different levels of urban greenness and well-being benefits. A mixed methods approach incorporated two physiological measures (electroencephalogram (EEG) and electrodermal activity (EDA)), a self-reported questionnaire (Semantic Differential (SD) scale), and interviews exploring perceptions of street view images with varying levels of greenness. Physiological results showed that mood responses varied when exposed to different levels of greenery, findings which were also reflected in the interview data. Participants preferred urban natural areas with moderate greenery (50–55 %) and high green density spaces (65–70 %) with sufficient sunlight. Environments with better openness, fewer built elements, and straight avenues were also favored. Personal preferences and environmental familiarity influenced responses. This multimethod study demonstrates that the psychological benefits of urban greenery arise from a combination of visual greenness and broader environmental factors, calling for more holistic strategies in urban green planning and design.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129307"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014861","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

Urban green and blue space characteristics contributing to multiple perceived health benefits 城市绿色和蓝色空间的特点有助于多种感知的健康益处

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2025-12-15 DOI: 10.1016/j.ufug.2025.129229

Anna Kajosaari , Arne Arnberger , Sebastian Wenmakers , Alois Humer

{"title":"Urban green and blue space characteristics contributing to multiple perceived health benefits","authors":"Anna Kajosaari , Arne Arnberger , Sebastian Wenmakers , Alois Humer","doi":"10.1016/j.ufug.2025.129229","DOIUrl":"10.1016/j.ufug.2025.129229","url":null,"abstract":"<div><div>Despite the evidence linking urban green and blue spaces (UGBSs) with human health and well-being, questions remain regarding their optimal characteristics, quantity, and location for delivering diverse health benefits. This study examines UGBS use with a focus on the spatial distribution and characteristics of sites associated with self-reported health benefits. Data on UGBS visitation among adult residents of Vienna, Austria (<em>N</em> = 816), were collected using a digital participatory mapping survey. Participants located frequently visited green and blue spaces (<em>N</em> = 3243) and evaluated each site based on its resource building (physical activity, social interaction), restoring (stress reduction), and harm-reducing (heat adaptation) capacities. The spatial distribution and environmental correlates of sites associated with specific or multiple perceived health-related benefits were studied using a series of generalized linear mixed models and Getis-Ord Gi* hot spot analyses. Perceived benefits related to physical activity, stress reduction, and heat adaptation showed strong spatial clustering and clear environmental correlates, while social interaction had fewer significant associations. Larger recreational forests and spaces combining green and blue elements were most likely to support multiple perceived health-related benefits. The results demonstrate that the perceived health-related benefits derived from UGBS visitation can vary considerably within urban green and blue spaces. To promote human health and well-being as aims of green infrastructure planning, greater emphasis could be placed on citizens’ access to diverse health-supporting characteristics of green infrastructure instead of general UGBS access.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129229"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025916","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

An overview of the institutionalization of nature-based solutions in Brazilian cities 巴西城市中基于自然的解决方案的制度化概述

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-16 DOI: 10.1016/j.ufug.2026.129308

Fabiana Wütrich , Loan Diep , Tatiana Maria Cecy Gadda

{"title":"An overview of the institutionalization of nature-based solutions in Brazilian cities","authors":"Fabiana Wütrich , Loan Diep , Tatiana Maria Cecy Gadda","doi":"10.1016/j.ufug.2026.129308","DOIUrl":"10.1016/j.ufug.2026.129308","url":null,"abstract":"<div><div>While Nature-based Solutions (NbS) are gaining visibility in Brazil as a strategy for rethinking urban development, their institutionalization within municipal frameworks remains poorly understood. This article provides the first nationwide mapping of NbS integration into local governance, analyzing 903 legal norms across 389 municipalities. Results show that NbS institutionalization is recent (mostly post-2020) and uneven, favoring specific strategies such as green roofs, urban forests, and rain gardens over the umbrella term “NbS.” Geographically, norms are concentrated in the Southeast and South, while the North—home to the Amazon—remains scarcely represented. Although larger cities show higher adoption rates, medium-sized municipalities lead in legislative output. Ordinary laws dominate the legal landscape, while complementary laws and master plans offer stronger integration opportunities. The study also identifies “NbS Champions,” a group of municipalities that have institutionalized multiple strategies. Crucially, these findings establish a baseline for monitoring the impact of emerging federal frameworks, such as the National Urban Afforestation Plan (PlaNAU), while highlighting the strategic role of local governments as autonomous drivers of bottom-up innovation for climate resilience.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129308"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145995447","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

Integrating ecosystem services and optimization analyses to prioritize green spaces implementation in a Global South megacity 整合生态系统服务和优化分析，优先考虑全球南方大城市的绿色空间实施

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.ufug.2026.129314

Gabriel Moreno Tarragô , Ligia Pinheiro de Jesus , Luciana Schwandner Ferreira , Douglas William Cirino , Artur Lupinetti Cunha , Jean Paul Metzger

{"title":"Integrating ecosystem services and optimization analyses to prioritize green spaces implementation in a Global South megacity","authors":"Gabriel Moreno Tarragô , Ligia Pinheiro de Jesus , Luciana Schwandner Ferreira , Douglas William Cirino , Artur Lupinetti Cunha , Jean Paul Metzger","doi":"10.1016/j.ufug.2026.129314","DOIUrl":"10.1016/j.ufug.2026.129314","url":null,"abstract":"<div><div>The implementation of green spaces in urban environments is usually driven by factors such as financial availability, social pressure, and political interests. This practice can limit the full realization of socio-environmental benefits of green spaces while underestimating implementation costs, ultimately resulting in low cost-effectiveness solutions. To overcome this limitation, we propose here a prioritization approach that optimize the spatial allocation of proposed parks in the city of São Paulo, Brazil, focusing on three ecosystem services: local climate regulation, local water infiltration, and recreation. We show that a cost-effectiveness strategy can outperformed service provision by five times compared to a minimum-cost scenario and reduce costs by 60 % relative to a random selection scenario. Prioritizing implementation at the citywide level, rather than targeting specific regions, led to greater provision of ecosystem services and cost-effectiveness. Our results also highlight that balancing environmental benefits with implementation costs helps minimize ecosystem services trade-offs, leading to a more equitable distribution of services across the city. This study provides a valuable approach for urban landscape planning, presenting a transparent, data-driven, and replicable framework to support urban planners in making informed decisions to expand green areas and establish parks in cities.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129314"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071669","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

Vegetation and management under the urban shadow: Key filters for mammal communities in forest parks 城市阴影下的植被和管理：森林公园哺乳动物群落的关键过滤器

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-23 DOI: 10.1016/j.ufug.2026.129313

Liu Yuhan , Zhong Weiliang , Chen Yilin , Jin Minli , He Yunhe , He Shunyun , Xu Xi

{"title":"Vegetation and management under the urban shadow: Key filters for mammal communities in forest parks","authors":"Liu Yuhan , Zhong Weiliang , Chen Yilin , Jin Minli , He Yunhe , He Shunyun , Xu Xi","doi":"10.1016/j.ufug.2026.129313","DOIUrl":"10.1016/j.ufug.2026.129313","url":null,"abstract":"<div><div>Urban forest parks are critical refuges for biodiversity within rapidly urbanizing landscapes. To identify key community drivers, we integrated one-year infrared camera trapping (54 cameras) with vegetation surveys (42 plots) across four parks along an urbanization gradient in northern Zhejiang, China. We recorded 20 wild mammal species from 7 orders and 10 families. Using a multi-scale analytical framework, we performed separate Redundancy Analyses (RDA) at the community-structure, order, and family levels. The results revealed a hierarchy of scale-dependent environmental filters. Vegetation integrity was the strongest filter for overall community structure (23.4% variance explained, p = 0.004), while the urbanization gradient (UG) acted as a significant, independent constraint, showing a strong negative correlation with species richness (r = -0.649, p = 0.002). At finer taxonomic scales, bamboo cover filtered order-level composition (26.3%, p = 0.006), and topography (slope & elevation) drove family-level distribution (22.5% & 9.8%, p = 0.016 & 0.048). The endangered Black Muntjac (<em>Muntiacus crinifrons</em>) was only detected in sites with dense understory, underscoring fine-scale habitat complexity as a critical refugium. Our findings demonstrate that in these resilient, human-tolerant assemblages, biodiversity is filtered through a cascade of processes: local habitat quality sets the primary template, upon which regional urbanization exerts an additional, broad-scale constraint. Consequently, effective conservation requires a two-scale strategy: landscape planning to mitigate the pervasive pressure of the urbanization gradient, and local actions to protect topographic refugia and actively restore vegetation structural complexity. This scale-explicit framework provides a mechanistic basis for managing biodiversity in urbanizing forest ecosystems.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129313"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025915","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

Does urban greenery type matter for self-rated health status? A population-based multilevel study in Finland 城市绿化类型对自评健康状况有影响吗？芬兰一项基于人群的多层次研究

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-20 DOI: 10.1016/j.ufug.2026.129310

Milena Nevanto , Timo M. Kauppinen , Olle Järv , Mari Vaattovaara , Teemu Kemppainen

{"title":"Does urban greenery type matter for self-rated health status? A population-based multilevel study in Finland","authors":"Milena Nevanto , Timo M. Kauppinen , Olle Järv , Mari Vaattovaara , Teemu Kemppainen","doi":"10.1016/j.ufug.2026.129310","DOIUrl":"10.1016/j.ufug.2026.129310","url":null,"abstract":"<div><div>While the health benefits of nature are widely studied, a lack of understanding remains of how various green space characteristics in the urban environment are related to health. This study investigated how various green space types and the overall quantity of green spaces are associated with self-rated health status. Green space types were classified into built green spaces, open green spaces, and forests, and into subcategories of these types offering more detailed definitions of green space characteristics. Our study used a cross-sectional survey of 3677 geolocated respondents living in Helsinki, Finland and spatial data on green spaces in the residential environment. These data were analysed with multilevel logistic regression. Good self-rated health was significantly associated with residential green spaces in general and with forests. When a more detailed classification of green space types was used, specifically forests near residential areas and recreational forests were positively associated with self-rated health. None of the built green space or open green space types had statistically significant linear associations with self-rated health. Our study highlights the importance of investigating the functions designed for various green space types in terms of urban health. The findings particularly suggest that residential environment with more forests is associated with better self-rated health and provide new insight into what forest characteristics are related to self-rated health levels in urban settings.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129310"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014867","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

A new red-edge near-infrared index for accurate urban vegetation delineation in high-density built environments 高密度建筑环境下城市植被精确圈定的新红边近红外指数

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-17 DOI: 10.1016/j.ufug.2026.129300

Ruyi Wang , Yue Chang , Jixian Zhang , Xiaoping Lu , Zhili Feng

{"title":"A new red-edge near-infrared index for accurate urban vegetation delineation in high-density built environments","authors":"Ruyi Wang , Yue Chang , Jixian Zhang , Xiaoping Lu , Zhili Feng","doi":"10.1016/j.ufug.2026.129300","DOIUrl":"10.1016/j.ufug.2026.129300","url":null,"abstract":"<div><div>Urban vegetation is critical for climate regulation, ecological resilience, public mental health, and sustainable urban development. However, accurate delineation of vegetation within densely built environments remains challenging due to significant spectral confusion with impervious surfaces. To address this limitation, we introduce the Red-Edge Near-Infrared Urban Artificial Interference-Resistant Index (RENIUAI), a geometrically interpretable vegetation index derived from the Red Edge Ⅰ/Ⅱ-Near Infrared spectral space of Gaofen-6 (GF-6) imagery. By exploiting red-edge bands and calculating the signed Euclidean distance to an optimized decision boundary, RENIUAI enhances the separability of vegetation from spectrally similar non-vegetation surfaces. When incorporated as an explicit input into a UNet+ + deep learning segmentation framework, RENIUAI facilitates multiscale feature extraction and improves boundary fidelity, particularly for narrow, fragmented, and shadowed vegetation patches. Experiments conducted in the Jinshui District of Zhengzhou City, China, validated against high-resolution Gaofen-2 (GF-2) imagery, demonstrate that the RENIUAI-UNet+ + framework achieves an Overall Accuracy of 92.61 %, an F1-score of 0.8916, a Kappa coefficient of 0.8356, and a vegetation IoU of 0.8200. This performance surpasses traditional indices, such as NDVI, RVI, and DVI, by up to 4.31 % points while reducing false positives in impervious areas by over 60 %. Spatially, the framework generates more coherent vegetation maps, supporting the reliable estimation of key ecological indicators, including green coverage ratio, patch connectivity, and fragmentation metrics. By providing ecologically interpretable, transferable, and policy-relevant vegetation information, this study offers a robust and easily deployable tool for urban greening assessment, ecological planning compliance, and sustainable land-use management in rapidly urbanizing regions.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129300"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145993599","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

Measuring tree diameter at breast height in urban green spaces using ForestScanner: Implications for citizen science 使用ForestScanner测量城市绿地胸围高度的树木直径：对公民科学的启示

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.ufug.2026.129293

Yamato Tsuzuki , Akio Inoue

{"title":"Measuring tree diameter at breast height in urban green spaces using ForestScanner: Implications for citizen science","authors":"Yamato Tsuzuki , Akio Inoue","doi":"10.1016/j.ufug.2026.129293","DOIUrl":"10.1016/j.ufug.2026.129293","url":null,"abstract":"<div><div>A free mobile application called ForestScanner (FS) was recently developed to enable LiDAR-based forest inventories using LiDAR-equipped iPhones or iPads. Although FS has been shown to reduce the cost, labor, and time required to measure the diameter at breast height (<em>D</em>) of trees within forests, its applicability to trees in urban green spaces (UGS) has not been evaluated. Here, we conducted two experiments to evaluate the performance of FS in the UGS. The first experiment involved the measurement of 70 trees at various distances and directions. The results revealed that FS tended to underestimate <em>D</em> compared to the traditional diameter tape (DT), with greater bias and variability at longer distances. These results suggest that measurements should be taken as close to the tree as possible to improve the accuracy and precision. In the second experiment, 39 trees were measured repeatedly by multiple observers. The results demonstrated that FS produced slightly greater variability between and within observers than did DT, although the overall agreement remained high. The underestimation was more pronounced for larger trees across both experiments, and for broad-leaved trees than for conifers in the second experiment. Overall, these findings highlight the potential of FS for citizen science-based assessments of carbon stocks in UGS, while also emphasizing the need for careful application when measuring larger and broad-leaved trees.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129293"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957169","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

Socioeconomic inequities in visible, functional, and accessible green space exposure: A cross-sectional study in Flanders, Belgium 可见、功能和可达绿地暴露中的社会经济不平等：比利时法兰德斯的横断面研究

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.ufug.2026.129301

Melissa K. Lee , Eline Rega , Maarten Loopmans , Martina Otavova , Jos Van Orshoven , Raf Aerts , Ben Somers

{"title":"Socioeconomic inequities in visible, functional, and accessible green space exposure: A cross-sectional study in Flanders, Belgium","authors":"Melissa K. Lee , Eline Rega , Maarten Loopmans , Martina Otavova , Jos Van Orshoven , Raf Aerts , Ben Somers","doi":"10.1016/j.ufug.2026.129301","DOIUrl":"10.1016/j.ufug.2026.129301","url":null,"abstract":"<div><div>Green space offers numerous benefits for health and well-being, yet socioeconomic disparities continue to shape who has access to these benefits. The 3 + 30 + 300 guideline aims to reduce this inequity by promoting visible, available, and accessible green for all residents. This study assesses these components of green exposure across Flanders, Belgium, one of the most densely populated and highly urbanized regions in Western Europe, and examines how they intersect with multiple dimensions of socioeconomic deprivation, namely sensitivity and adaptive capacity. Using 264,622 building-level sample points, we quantified tree visibility from street-view imagery, tree canopy cover, and network distance to accessible green space. Median values of 5.0 (urban) and 6.0 (rural) visible trees, 16.1 % (urban) and 12.4 % (rural) canopy cover, and distances of 367 (urban) and 548 (rural) meters to accessible green were observed. Deprived neighborhoods, particularly those characterized by housing and health deprivation, showed the highest sensitivity to lack of green spaces, while areas with more elderly and higher-income residents had consistently greater exposure. These results suggest that green exposure and socioeconomic susceptibility intersect and reinforce one another, producing compounded distributive injustice. The findings highlight the need for equity-oriented interpretation and implementation of the 3 + 30 + 300 guideline and call for targeted greening strategies that address structural environmental and health inequalities.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129301"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145961746","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

How street tree structure modulates thermal comfort during urban heat extremes: Evidence from LiDAR and micrometeorological data 街道树木结构如何调节城市极端高温期间的热舒适：来自激光雷达和微气象数据的证据

IF 6.7 2区环境科学与生态学

Urban Forestry & Urban Greening Pub Date : 2026-04-01 Epub Date: 2026-01-19 DOI: 10.1016/j.ufug.2026.129309

Xiangyun Li , Benyao Wang , Yinan Yang , Yixuan Yang , Tao Yu , Kejing Pei , Ying Zhong , Yujing Xie

{"title":"How street tree structure modulates thermal comfort during urban heat extremes: Evidence from LiDAR and micrometeorological data","authors":"Xiangyun Li , Benyao Wang , Yinan Yang , Yixuan Yang , Tao Yu , Kejing Pei , Ying Zhong , Yujing Xie","doi":"10.1016/j.ufug.2026.129309","DOIUrl":"10.1016/j.ufug.2026.129309","url":null,"abstract":"<div><div>Extreme heat threatens pedestrian thermal comfort in urban areas, and street trees help mitigate heat stress. However, the mechanisms by which their structural attributes influence pedestrian thermal comfort, especially during extreme heat, are still not well understood. This study assessed how street tree structure alleviates heat stress in a Shanghai community using mobile LiDAR and micrometeorological data from 12 summer days (10:00–15:00) at both the street scale and the individual-tree scale. Statistical analyses, including Partial Correlation, Multiple Regression, and Generalized Additive Models (GAMs), were applied to identify the main drivers of changes in Physiological Equivalent Temperature (PET). Results show that street trees significantly reduced air temperature and solar radiation, with solar radiation reduction being more strongly correlated with PET decrease. At both scales, radiation reduction was the dominant driver of improved thermal comfort. Leaf Area Index (LAI) and Crown Projected Area (CPA) were key structural attributes, with optimal shading when LAI ≥ 6 and CPA ≥ 50 m², and their interaction improved model performance (R² from 0.38 to 0.56). Street orientation and tree species had no significant impact. Given that this study focused on a limited number of species within a specific urban context and that the results may vary across spatial scales, our findings suggest that, during extreme heat, street trees enhance pedestrian thermal comfort primarily through shading, with effectiveness largely determined by LAI, CPA, and their interaction. This analysis provides a scientific basis for optimizing street tree design to enhance pedestrian thermal comfort in climate-resilient urban environments.</div></div>","PeriodicalId":49394,"journal":{"name":"Urban Forestry & Urban Greening","volume":"118 ","pages":"Article 129309"},"PeriodicalIF":6.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001546","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