Nature Cities最新文献_第6页

Sensing the pulse of after-dark urban consumption 感知夜幕降临后城市消费的脉搏

Nature Cities Pub Date : 2025-06-19 DOI: 10.1038/s44284-025-00243-9

Wei Chen

引用次数: 0

My city never sleeps 我的城市从不沉睡

Nature Cities Pub Date : 2025-06-19 DOI: 10.1038/s44284-025-00244-8

Niklas Effenberger

引用次数: 0

Cross-disciplinary governance for China’s urban skies 中国城市天空的跨学科治理

Nature Cities Pub Date : 2025-06-18 DOI: 10.1038/s44284-025-00271-5

Changdong Wang, Jingli Yang

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Citizen science illuminates the nature of city lights 公民科学照亮了城市之光的本质

Nature Cities Pub Date : 2025-06-16 DOI: 10.1038/s44284-025-00239-5

Team Nachtlichter

{"title":"Citizen science illuminates the nature of city lights","authors":"Team Nachtlichter","doi":"10.1038/s44284-025-00239-5","DOIUrl":"10.1038/s44284-025-00239-5","url":null,"abstract":"The image of Earth at night from space, with its constellations of cities, has become iconic. However, our understanding of the source and scale of artificial light emissions is still in the dark, hampering urban environmental protection efforts. In 2021, our citizen scientists used the Nachtlichter app to count and classify 234,044 light sources across a 22-km2 area, primarily in Germany. We show that such a dataset can be used to translate space-based radiance observations to the more understandable unit of installed lights per km2 on the ground. We find that in German city centers, more total light sources are used for advertising and aesthetic purposes than for street lighting. Furthermore, we estimate that 78 ± 3 million individual light sources remain illuminated at midnight across Germany, highlighting great potential for mitigation. These findings not only offer direct knowledge for artificial light research but also serve as a practical resource for policymakers to mitigate urban light pollution. This study employs a citizen science approach to identify and classify over 230,000 light sources in German city centers, suburbs and villages. The results underscore the pivotal role of citizen science in expanding knowledge of artificial light emissions and bolstering policymaking efforts to mitigate urban light pollution.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 6","pages":"496-505"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44284-025-00239-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An enlightening look at city lights at night 夜景中城市的灯光令人启发

Nature Cities Pub Date : 2025-06-16 DOI: 10.1038/s44284-025-00242-w

引用次数: 0

Artificial light at night outweighs temperature in lengthening urban growing seasons 在延长城市生长季节方面，夜间的人工照明胜过温度

Nature Cities Pub Date : 2025-06-16 DOI: 10.1038/s44284-025-00258-2

Lvlv Wang, Lin Meng, Andrew D. Richardson, Franz Hölker, Huidong Li, Jiafu Mao, Travis Longcore, Jun Xia, Dunxian She

{"title":"Artificial light at night outweighs temperature in lengthening urban growing seasons","authors":"Lvlv Wang, Lin Meng, Andrew D. Richardson, Franz Hölker, Huidong Li, Jiafu Mao, Travis Longcore, Jun Xia, Dunxian She","doi":"10.1038/s44284-025-00258-2","DOIUrl":"10.1038/s44284-025-00258-2","url":null,"abstract":"Plant growing seasons are largely regulated by light and temperature. Cities are increasingly hot (higher air temperature), from the urban heat island effect, and bright (artificial light at night, ALAN). However, the relative effect of heat and light on the timing of plant growth events, called phenology, is unclear, limiting our understanding under climate change and urbanization. Here we used multiple satellite observations of 428 Northern Hemisphere cities from 2014 to 2020 to analyze phenological patterns along a gradient from rural to urban. We found that ALAN increased exponentially toward urban centers, and exerted stronger influence than air temperature in lengthening the urban growing season, especially by delaying its end, although the effects varied across climate zones. Our findings demonstrate that ALAN is a critical driver of vegetation dynamics in cities, one we should consider during urban management and development. Cities are becoming hotter and brighter. Using satellite data on 428 Northern Hemisphere cities, this study found that artifical night lights outweighed hotter temperatures in lengthening urban growing seasons, with important implications for management.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 6","pages":"506-517"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44284-025-00258-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urban climate science needs to step out 城市气候科学需要走出去

Nature Cities Pub Date : 2025-06-11 DOI: 10.1038/s44284-025-00264-4

Ashish Sharma

引用次数: 0

The form of China’s urban commercial expansion in the digital era 数字时代中国城市商业扩张的形态

Nature Cities Pub Date : 2025-06-11 DOI: 10.1038/s44284-025-00254-6

Enjia Zhang, Jingxuan Hou, Ying Long

{"title":"The form of China’s urban commercial expansion in the digital era","authors":"Enjia Zhang, Jingxuan Hou, Ying Long","doi":"10.1038/s44284-025-00254-6","DOIUrl":"10.1038/s44284-025-00254-6","url":null,"abstract":"The digital era has reshaped urban commercial spaces, driving the emergence of less-visible shops in non-ground-floor and non-street-facing areas. To deepen the investigation of this transformation, this study analyzes the spatial evolution of commercial establishments across 287 Chinese cities from 2015 to 2023, using data from Dazhong-Dianping—a leading public review and rating platform for commercial premises. The results reveal a widespread trend of establishments expanding horizontally within street blocks and vertically across building floors (excluding shopping centers). In particular, the proportion of non-street-facing and non-ground-floor shops increased steadily, with accelerated growth post-COVID despite an overall decline in shop numbers. This shift was particularly prominent in experiential consumption sectors, such as entertainment, exercise and beauty services, which exhibited robust expansion. Higher socioeconomic tier cities experienced these changes earlier and more intensely. These findings provide critical insights for mixed-use development, adaptive urban governance and retail innovation in the digital era. Horizontal and vertical expansions of urban commercial establishments are investigated in the digital era, revealing that across China, these expansions have increasingly moved away from reliance on street-facing and ground-floor locations.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 7","pages":"639-649"},"PeriodicalIF":0.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123496","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

Large language models in urban planning 城市规划中的大型语言模型

Nature Cities Pub Date : 2025-06-09 DOI: 10.1038/s44284-025-00261-7

Xinyu Fu, Chaosu Li, Steven Jige Quan, Tan Yigitcanlar, David Wasserman

引用次数: 0

Biodiversity-rich recreational areas near cities as a nature-based mental health solution 城市附近生物多样性丰富的休闲区，作为基于自然的心理健康解决方案

Nature Cities Pub Date : 2025-06-04 DOI: 10.1038/s44284-025-00251-9

Cong Xia, Shougeng Hu, Zongnan Hu, Yanyun Yan, L. Roman Carrasco

{"title":"Biodiversity-rich recreational areas near cities as a nature-based mental health solution","authors":"Cong Xia, Shougeng Hu, Zongnan Hu, Yanyun Yan, L. Roman Carrasco","doi":"10.1038/s44284-025-00251-9","DOIUrl":"10.1038/s44284-025-00251-9","url":null,"abstract":"Nature experiences in biodiversity-rich recreational areas (recreation-permitted protected areas, Key Biodiversity Areas and intact forest landscapes) can provide an extra benefit to mental health compared to managed urban green spaces. However, to what extent urban residents have access to these experiences globally and their cost-effectiveness as mental health treatments remain unclear. Assessing 9,034 cities globally, we find that over 96% of cities have biodiversity-rich recreational areas within two hours, with the affordability of experiences and visiting rates being highest in Europe, Oceania and North America. The extra benefits of experiences in biodiversity-rich recreational areas near cities reduces 137,299 (90% uncertainty range: 10,368–598,509) disability-adjusted life years of depression and anxiety and appears as a cost-effective public health intervention in developed settings in Europe, North America and South America. Lowering traveling costs by establishing new highly biodiverse recreation-permitted protected areas near cities would be a nature-based mental health intervention with potential to benefit biodiversity and urban residents’ health. Nature in and near cities is a balm for many urban residents. This study finds that most cities globally have nearby access to biodiverse recreation areas that effectively form cost-effective mental health support.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"2 6","pages":"532-542"},"PeriodicalIF":0.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145123515","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