Nature Cities最新文献_第3页

Unforeseen high continental-scale soil microbiome homogenization in urban greenspaces 城市绿地中不可预见的高大陆尺度土壤微生物组同质化

Nature Cities Pub Date : 2025-08-04 DOI: 10.1038/s44284-025-00294-y

Xin Sun, Jake M. Robinson, Manuel Delgado-Baquerizo, Anton Potapov, Haifeng Yao, Biao Zhu, Alexei V. Tiunov, Linxiu Zhang, Faith Ka Shun Chan, Scott X. Chang, Martin F. Breed, Nico Eisenhauer, Stefan Scheu, Zhipeng Li, Yong-Guan Zhu

{"title":"Unforeseen high continental-scale soil microbiome homogenization in urban greenspaces","authors":"Xin Sun, Jake M. Robinson, Manuel Delgado-Baquerizo, Anton Potapov, Haifeng Yao, Biao Zhu, Alexei V. Tiunov, Linxiu Zhang, Faith Ka Shun Chan, Scott X. Chang, Martin F. Breed, Nico Eisenhauer, Stefan Scheu, Zhipeng Li, Yong-Guan Zhu","doi":"10.1038/s44284-025-00294-y","DOIUrl":"10.1038/s44284-025-00294-y","url":null,"abstract":"Soils in urban greenspaces often support higher microbial richness but with more homogenous communities than in natural ecosystems. However, it is not known how urbanization impacts the diversity and homogeneity of soil communities in urban greenspaces compared with other highly managed ecosystems such as farmlands. Here we conducted a continental-scale study spanning 13 cities and four land uses (city parks, residential areas, and adjacent forests and farmlands) in China. We found that urban ecosystems consistently support higher local soil bacterial, protist and fungal (but not metazoan) richness than farmlands and forests. This elevated richness was closely related to higher pH in urban ecosystem soils. Urban greenspaces also supported more homogenous soil communities than farmlands. The results indicate that urbanization drives biotic homogenization and increases synchronous responses to environmental stressors in urban greenspaces at a continental scale. Our findings have important implications for managing soil ecosystem resilience and functional diversity in cities of the future. The soils of urban greenspaces are strikingly rich. This study finds that the variety of microbial life there is linked to acidic conditions and that this diversity is more homogenous than found in farmland soils.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 8","pages":"759-769"},"PeriodicalIF":0.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Standardized heat islands and persistence drive modeled urban heat events 标准化热岛和持续性驱动模拟的城市热事件

Nature Cities Pub Date : 2025-08-01 DOI: 10.1038/s44284-025-00290-2

Weilin Liao, Linying Wang, Xiaoping Liu, Duo Chan, Dan Li

{"title":"Standardized heat islands and persistence drive modeled urban heat events","authors":"Weilin Liao, Linying Wang, Xiaoping Liu, Duo Chan, Dan Li","doi":"10.1038/s44284-025-00290-2","DOIUrl":"10.1038/s44284-025-00290-2","url":null,"abstract":"Urban environments are usually hotter than their rural surroundings, a phenomenon known as the urban heat island (UHI) effect. The mean UHI effect implies that urban environments would experience more heat events if the same temperature threshold is used to identify heat events in both urban and rural environments. However, the role of higher-order temperature statistics, such as temperature variance and persistence, in determining urban–rural differences of heat event occurrence remains elusive. Here, using numerical simulations from two global models, we demonstrate that up to 94% of urban–rural differences in hot day occurrence are driven by the mean UHI effects normalized by temperature variance, that is, the standardized mean UHI effects. For multi-day heat events, temperature persistence further plays an important role. These findings reveal how the temperature mean, variance and persistence interact to determine the urban–rural difference in heat event occurrence. Cities with more pronounced standardized mean UHI effects and enhanced temperature persistence should place greater emphasis on mitigating the adverse impacts caused by extreme heat. Heat waves are increasing, and cities seem especially prone. Using global climate models, this study finds that cities with stronger standardized heat islands and more-persistent heat experience more heat waves.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 9","pages":"857-864"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acute mental health benefits of urban nature 城市自然的急性心理健康益处

Nature Cities Pub Date : 2025-07-30 DOI: 10.1038/s44284-025-00286-y

Yingjie Li, Yuanyuan Mao, Lisa Mandle, Anders Rydström, Roy P. Remme, Xin Lan, Tong Wu, Chao Song, Yougeng Lu, Kari C. Nadeau, Andreas Meyer-Lindenberg, Gretchen C. Daily, Anne D. Guerry

{"title":"Acute mental health benefits of urban nature","authors":"Yingjie Li, Yuanyuan Mao, Lisa Mandle, Anders Rydström, Roy P. Remme, Xin Lan, Tong Wu, Chao Song, Yougeng Lu, Kari C. Nadeau, Andreas Meyer-Lindenberg, Gretchen C. Daily, Anne D. Guerry","doi":"10.1038/s44284-025-00286-y","DOIUrl":"10.1038/s44284-025-00286-y","url":null,"abstract":"Mental disorders are more prevalent in cities, yet the global impact of urban nature on mental health remains insufficiently understood. Here we address this gap by systematically reviewing 449 peer-reviewed studies and conducting a meta-analysis of 78 field-based experiments to quantify the effects of various urban nature types on 12 mental health outcomes. Our meta-analysis demonstrates that exposure to urban nature provides substantial benefits for a broad spectrum of mental health outcomes. Green spaces such as urban forests and parks emerged as key elements in mitigating negative moods, such as depression and anxiety, and enhancing overall mental well-being. In particular, the benefits of nature exposure are most pronounced among young adults, although consistent positive effects are evident across all age groups. These findings highlight the importance of safeguarding and expanding access to urban nature as a key strategy for enhancing public health and well-being in cities worldwide. A comprehensive understanding of how urban nature affects mental health at a global scale remains essential. This study addresses that need through a systematic review and meta-analysis, revealing the effects of exposure to various urban nature types on 12 distinct mental health outcomes.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 8","pages":"720-731"},"PeriodicalIF":0.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urban nature and mental health 城市自然与心理健康

Nature Cities Pub Date : 2025-07-30 DOI: 10.1038/s44284-025-00297-9

John S. Ji

引用次数: 0

The effects of urbanization on species interactions 城市化对物种相互作用的影响

Nature Cities Pub Date : 2025-07-29 DOI: 10.1038/s44284-025-00288-w

Pablo Moreno-García, Amy Savage, Ana L. Salgado, Elena S. Tartaglia, Jennifer M. Cocciardi, Myla F. J. Aronson, Marta A. Jarzyna, Marina Alberti, Daijiang Li

引用次数: 0

Heat stress and productivity losses in urban construction workforces 城市建筑工人的热应激和生产力损失

Nature Cities Pub Date : 2025-07-29 DOI: 10.1038/s44284-025-00283-1

Barrak Alahmad, Shih-Chun Candice Lung, Andrew Makar, Yazan Alwadi, Chun-Hsiang Chiu, Shu-Chuan Hu, Ling-Jyh Chen, Hsin Hung Chen, C. Y. Chen

引用次数: 0

A generalized relationship between dose of greenness and mental health response 绿色剂量与心理健康反应的广义关系

Nature Cities Pub Date : 2025-07-25 DOI: 10.1038/s44284-025-00285-z

Bin Jiang, Jiali Li, Peng Gong, Chris Webster, Gunter Schumann, Xueming Liu, Pongsakorn Suppakittpaisarn

{"title":"A generalized relationship between dose of greenness and mental health response","authors":"Bin Jiang, Jiali Li, Peng Gong, Chris Webster, Gunter Schumann, Xueming Liu, Pongsakorn Suppakittpaisarn","doi":"10.1038/s44284-025-00285-z","DOIUrl":"10.1038/s44284-025-00285-z","url":null,"abstract":"Exposure to green spaces is a boon to urbanites. Over the last four decades, an increasing number of researchers have shown interest in exploring the relationship between the dose of greenness and mental health response. Early studies suggested a linear dose–response relationship, making it challenging to identify the most beneficial doses of greenness. However, findings from a rapidly growing body of recent research indicate the possible existence of a generalized curvilinear pattern. Despite this, these studies have used varying measures and contexts, resulting in inconclusive evidence. Without fully understanding the nature of the relationship, we do not know how to allocate green landscape resources to maximize mental health benefits. This study aimed to identify a generalized pattern to describe the dose–response relationship between urban greenness and mental health. Through a meta-analysis of all relevant studies, we found sufficient samples to generalize the dose–response curve for greenness intensity. Our analysis revealed that a quadratic pattern best fits most of the published greenness curves, and we identified the highly beneficial and best doses of eye-level greenness and top-down greenness. This study identifies and rationalizes a generalized quadratic pattern describing the dose of greenness–mental health response curves, addressing a critical knowledge gap across multiple fields. In practice, a moderate ‘dose’ of urban greenness exposure provides the most salubrious supply of mental health benefits. With nature in cities, as with the chemicals we ingest, the dose can make the difference. This analysis looks across other studies to find that, in practice, a moderate ‘dose’ of urban greenness provides the greatest mental health benefits.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 8","pages":"739-748"},"PeriodicalIF":0.0,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rewriting São Paulo’s urban narrative through community gardens with Claudia Visoni 与Claudia Visoni一起通过社区花园重写圣保罗的城市叙事

Nature Cities Pub Date : 2025-07-23 DOI: 10.1038/s44284-025-00295-x

Luís Fernando Amato-Lourenco

引用次数: 0

Association between urban shrinkage and excess mortality during the COVID-19 pandemic 2019冠状病毒病大流行期间城市萎缩与过高死亡率之间的关系

Nature Cities Pub Date : 2025-07-18 DOI: 10.1038/s44284-025-00278-y

Gukhwa Jang, Saehoon Kim, Jae Seung Lee

{"title":"Association between urban shrinkage and excess mortality during the COVID-19 pandemic","authors":"Gukhwa Jang, Saehoon Kim, Jae Seung Lee","doi":"10.1038/s44284-025-00278-y","DOIUrl":"10.1038/s44284-025-00278-y","url":null,"abstract":"As the COVID-19 pandemic exposed and amplified structural vulnerabilities in cities, understanding how urban shrinkage exacerbates public health risks has become increasingly urgent. This study examines the relationship between urban shrinkage and excess mortality in 1,142 US counties during the COVID-19 pandemic (March 2020–February 2023). Using Kruskal–Wallis tests and mixed-effects models, we analyzed how different patterns and degrees of urban shrinkage influenced monthly excess deaths per 100,000 population and the frequency of mortality peaks. The results indicate that shrinking counties showed 165% higher excess deaths and 142% more mortality peaks than growing counties. Notably, counties experiencing simultaneous declines in both population and gross regional domestic product demonstrated worse outcomes than those with only one dimension of shrinkage. Furthermore, excess deaths increased proportionally with the severity of demographic and economic contraction. Socioeconomic disadvantages prevalent in shrinking counties—including lower income levels, higher proportions of older adults, lower educational attainment and higher unemployment rates—were also associated with elevated excess deaths. These findings underscore the need for place-based public health strategies tailored to address the structural vulnerabilities faced by shrinking and socioeconomically disadvantaged communities. Shrinking US counties faced 165% higher COVID-19 excess mortality than growing areas, exacerbated by combined population and economic decline. Structural vulnerabilities in shrinking regions underscore the need for targeted health interventions addressing socioeconomic disparities.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 8","pages":"708-719"},"PeriodicalIF":0.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effectiveness of leading pedestrian intervals for city walkers’ safety 引导步行间隔对城市步行者安全的有效性

Nature Cities Pub Date : 2025-07-18 DOI: 10.1038/s44284-025-00267-1

Siddhesh Zadey, Leah E. Roberts, Brady Bushover, Ariana N. Gobaud, Christina A. Mehranbod, Carolyn S. Fish, Evan L. Eschliman, Xiang Gao, Dana E. Goin, Christopher N. Morrison

引用次数: 0