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Global urban greening and its implication for urban heat mitigation

文献类型：期刊论文

作者Li, Guangdong3,4; Cao, Yue3,4; Fang, Chuanglin3,4; Sun, Siao3,4; Qi, Wei3,4; Wang, Zhenbo3,4; He, Sanwei2; Yang, Zhiqi1
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2025-01-28
卷号122期号:4页码:2147483647
关键词urban vegetation greening urbanization inequality urban heat mitigation
ISSN号0027-8424
DOI10.1073/pnas.2417179122
产权排序1
文献子类Article
英文摘要Urban vegetation provides essential ecosystem services and benefits to support biodiversity and human well- being in urban areas. However, the dynamic trends, driving factors, and their implications to urban heat mitigation at the global scale remain largely unclear. Here, we used a high- resolution enhanced vegetation index (EVI) dataset to examine the vegetation dynamics in 11,235 urban areas worldwide, identify the driving factors behind its changes, and estimate the potential urban heat mitigation benefits of these changes. We found that 40.75% urban areas (1.51 Mha) evidenced a greening trend (showing increasing EVI), in contrast to 49.60% urban areas showing browning (decreasing EVI). Notably, urban centers in both developed and developing countries contribute to this greening trend. We, nevertheless, found significant spatial disparities in this greening trend, with cities in the Global North showing higher greening ratios than those in the Global South. The driving factors of urban vegetation change trend lead to significant differentiation in and around urban areas. The rapid increase in urbanization intensity and the negative effects of nitrogen deposition are the dominant factors leading to vegetation browning in urban peripheries. However, nitrogen deposition and urbanization intensity have shown positive effects on vegetation greening within urban centers. Crucially, compared to areas with vegetation browning or no significant change, vegetation greening areas have a more significant cooling effect, potentially mitigating the urban heat island effect, especially during summer daytime. Our findings highlight the importance of enhancing urban vegetation greening to promote equitable urban development and ensure effective climate change mitigation.
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WOS关键词CITIES ; CLIMATE ; URBANIZATION
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001417241700008
出版者NATL ACAD SCIENCES
源URL[http://ir.igsnrr.ac.cn/handle/311030/212368]  
专题区域可持续发展分析与模拟院重点实验室_外文论文
通讯作者Li, Guangdong; Fang, Chuanglin
作者单位1.Soochow Univ, Sch Polit & Publ Adm, Suzhou 215006, Peoples R China
2.Zhongnan Univ Econ & Law, Sch Publ Adm, Wuhan 430073, Peoples R China;
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China;
推荐引用方式
GB/T 7714		 Li, Guangdong,Cao, Yue,Fang, Chuanglin,et al. Global urban greening and its implication for urban heat mitigation[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2025,122(4):2147483647.
APA Li, Guangdong.,Cao, Yue.,Fang, Chuanglin.,Sun, Siao.,Qi, Wei.,...&Yang, Zhiqi.(2025).Global urban greening and its implication for urban heat mitigation.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,122(4),2147483647.
MLA Li, Guangdong,et al."Global urban greening and its implication for urban heat mitigation".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 122.4(2025):2147483647.

入库方式： OAI收割

来源：地理科学与资源研究所

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