Nature Cities最新文献_第3页

IF 15.3

Nature Cities Pub Date : 2026-08-14 DOI: 10.1038/s44284-026-00508-x

引用次数: 0

Overlooked upwind greening for urban cooling 城市降温忽视逆风绿化

IF 15.3

Nature Cities Pub Date : 2026-08-14 DOI: 10.1038/s44284-026-00503-2

Miao Yang, Junqi Wang, Sai Liu, Haorui Wang, Shi-Jie Cao

{"title":"Overlooked upwind greening for urban cooling","authors":"Miao Yang, Junqi Wang, Sai Liu, Haorui Wang, Shi-Jie Cao","doi":"10.1038/s44284-026-00503-2","DOIUrl":"10.1038/s44284-026-00503-2","url":null,"abstract":"Many cities have substantially expanded urban tree cover yet continue to experience intensifying heat stress that threatens public health, infrastructure and climate resilience. By contrast, traditional Chinese villages have demonstrated lasting thermal resilience through a synergistic mountain–water–forest framework that functions as a holistic climatic regulator. Building on this principle, we adapt and validate this cooling framework for modern megacities across diverse climatic zones and morphological contexts. Leveraging cold-air advection driven by terrain-guided wind patterns and upwind greening, the mountain–water–forest framework yields a temperature reduction of 0.4 ± 0.2 °C across more than half of the urban area and shows limited sensitivity to synoptic circulation types and terrain settings, requiring only (1) stable wind pathways and (2) adequate upwind greening zones. This study provides a scalable spatial strategy for heat mitigation in cities meeting these prerequisites, enriching climate adaptation strategies from a systems-based spatial perspective. Urban heat stress threatens health and infrastructure. The mountain–water–forest framework, adapted for megacities, utilizes terrain-driven cold-air advection and upwind greening, achieving temperature reductions of 0.4 ± 0.2 °C over more than half of the urban area across diverse climatic zones with limited sensitivity to synoptic circulation types and terrain settings.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"3 9","pages":"827-840"},"PeriodicalIF":15.3,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148975022","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 expansion and the collapse of tropical stream ecosystems 城市扩张和热带河流生态系统的崩溃

IF 15.3

Nature Cities Pub Date : 2026-08-14 DOI: 10.1038/s44284-026-00495-z

Victor S. Saito, Rodolfo Mei Pelinson, Thiago Leão-Pires, Gabriel Brejão, Lilian Casatti, Erika Shimabukuro, Tadeu Siqueira, Ricardo H. Taniwaki, Luis Schiesari

{"title":"Urban expansion and the collapse of tropical stream ecosystems","authors":"Victor S. Saito, Rodolfo Mei Pelinson, Thiago Leão-Pires, Gabriel Brejão, Lilian Casatti, Erika Shimabukuro, Tadeu Siqueira, Ricardo H. Taniwaki, Luis Schiesari","doi":"10.1038/s44284-026-00495-z","DOIUrl":"10.1038/s44284-026-00495-z","url":null,"abstract":"Urbanization profoundly modifies natural ecosystems that provide essential services to society, and nowhere is this effect more pronounced than in megacities. Using comparative sampling surveys, we investigated how urban expansion in the Metropolitan Region of São Paulo, Brazil—a megacity with over 22 million inhabitants—alters the size structure of stream communities and whether such changes trigger cascading effects on food web structure and ecosystem functioning as indicated by energy and carbon flow. We found that a sharp decline in biodiversity linked to urban infrastructure development was strongly non-random with respect to body mass. The selective loss of very small, moderately large and large taxa truncated food web size distributions, leaving urban streams dominated by small-bodied organisms and compressing size ranges by four orders of magnitude relative to rainforest streams. Food web complexity collapsed, from networks with over 150 trophic links to as few as 3, resulting in a substantial 1,446-fold reduction in energy flow. As processes such as nutrient cycling underpin critical ecosystem services in rivers, the loss of species diversity and degradation of food web integrity are likely to have extensive consequences for urban societies. Urbanization alters the structure and function of ecosystems. This study found that the diversity, complexity and energy flow through stream communities were sharply reduced by the expansion of the São Paulo Metropolitan Region of Brazil.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"3 9","pages":"814-826"},"PeriodicalIF":15.3,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148975018","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

Skin memory 皮肤记忆

IF 15.3

Nature Cities Pub Date : 2026-08-14 DOI: 10.1038/s44284-026-00491-3

Kavitha Vipulananda

引用次数: 0

Temporary loss of social-ecological system resilience during rural to urban transition 农村向城市转型过程中社会生态系统弹性的暂时丧失

IF 15.3

Nature Cities Pub Date : 2026-08-10 DOI: 10.1038/s44284-026-00493-1

Yuanyuan Yang, Wenkai Bao, Yuyu Wei, Mingying Yang, Alex de Sherbinin, Yansui Liu

{"title":"Temporary loss of social-ecological system resilience during rural to urban transition","authors":"Yuanyuan Yang, Wenkai Bao, Yuyu Wei, Mingying Yang, Alex de Sherbinin, Yansui Liu","doi":"10.1038/s44284-026-00493-1","DOIUrl":"10.1038/s44284-026-00493-1","url":null,"abstract":"Rural–urban transition zones are intensive frontiers of global urbanization, where immense social and ecological pressures converge over relatively limited areas. Despite evidence on the processes involved and impacts of rural to urban transitions, the dynamics of the transitioning zones remain underexplored. Here we frame the zones as transitional social-ecological systems and quantify their resilience. Specifically, we use cross-sectional comparisons and temporal (2000–2020) analyses in the Beijing–Tianjin–Hebei urban agglomeration, China, to assess the resilience of the transitional social-ecological systems as they shift from being rural to being urban. We find low resilience in these transitioning zones, with resilience declining across system boundaries and a temporary loss of resilience preceding the ‘regime shift’ to urbanity, providing archetypical evidence of impending social-ecological systems regime shifts in rural–urban transition contexts. Our study advances understanding of regime shifts by quantifying resilience dynamics in response to rural–urban transitions. Importantly, it also highlights rural–urban transition zones in the global south as critical yet overlooked arenas where instability emerges and where interventions are essential to steer sustainable urbanization. Growing cities expand outward, creating edge zones transitioning from being rural to being urban. Focusing on China’s Beijing–Tianjin–Hebei region, this study finds these zones become less resilient socially and ecologically as they transition.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"3 9","pages":"841-853"},"PeriodicalIF":15.3,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148975023","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

Make school-gate foodscapes safer, not invisible 让学校门口的食物更安全，而不是不可见

IF 15.3

Nature Cities Pub Date : 2026-08-10 DOI: 10.1038/s44284-026-00506-z

Junpeng Guo, Jiafu Li, Miao Lei, Fang Shen, Junhang Huang, Ye Li, Xingtao Xu

引用次数: 0

Generative AI in urban science and practice 城市科学与实践中的生成式人工智能

IF 15.3

Nature Cities Pub Date : 2026-08-05 DOI: 10.1038/s44284-026-00492-2

Yunke Zhang, Fengli Xu, Qi R. Wang, Esteban Moro, Yang Yue, Huandong Wang, Bin Chen, Yu Liu, Dongping Fang, Peng Gong, Luís M. A. Bettencourt, Michael Batty, Yong Li

引用次数: 0

Living bioreactive facades for visible carbon reduction in cities 在城市中减少碳排放的生物活性立面

IF 15.3

Nature Cities Pub Date : 2026-07-31 DOI: 10.1038/s44284-026-00502-3

Wenlei Zhu

引用次数: 0

Urban infrastructure and fossil fuel industrial legacy drive US data center siting 城市基础设施和化石燃料工业遗产推动了美国数据中心的选址

IF 15.3

Nature Cities Pub Date : 2026-07-31 DOI: 10.1038/s44284-026-00487-z

Camilla Ancona, Ofek Lauber Bonomo, Anton Rozhkov, Maurizio Porfiri

{"title":"Urban infrastructure and fossil fuel industrial legacy drive US data center siting","authors":"Camilla Ancona, Ofek Lauber Bonomo, Anton Rozhkov, Maurizio Porfiri","doi":"10.1038/s44284-026-00487-z","DOIUrl":"10.1038/s44284-026-00487-z","url":null,"abstract":"Data centers form the physical backbone of the digital economy, yet their integration into the US urban fabric remains poorly understood. Here we demonstrate that data centers are an overwhelmingly urban phenomenon, with 97.5% of facilities situated in metropolitan and micropolitan statistical areas, challenging the prevailing narratives of ‘rural cloud expansion’. Their spatial logic is driven by the nameplate capacity of local power plants and, to a lesser extent, by broadband quality, retired coal plants, information technology employment and natural hazards. The reliance on local power systems embeds data center siting within state-level energy generation patterns, amplifying geographic contrasts in the sustainability of the data center boom. Population-based projections of data centers’ growth indicate that the digital transition will reinforce existing urban hierarchies rather than catalyze decentralization. These findings suggest a path-dependent evolution linked to existing infrastructure and fossil fuel industrial legacy, posing considerable challenges to urban livability. Data centers predominantly occupy urban areas, influenced by local power capacity, information technology employment and broadband quality. This study highlights the impact of infrastructure and industrial legacy on their spatial distribution and sustainability implications.","PeriodicalId":501700,"journal":{"name":"Nature Cities","volume":"3 8","pages":"756-767"},"PeriodicalIF":15.3,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754308","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

Cities, not rural areas, power the digital infrastructure of the USA 美国的数字基础设施是由城市而不是农村地区提供动力的

IF 15.3

Nature Cities Pub Date : 2026-07-31 DOI: 10.1038/s44284-026-00488-y

引用次数: 0