globalchange  > 气候变化与战略
DOI: 10.1016/j.scitotenv.2019.135011
论文题名:
The relationship between urban form and heat island intensity along the urban development gradients
作者: Liang Z.; Wu S.; Wang Y.; Wei F.; Huang J.; Shen J.; Li S.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 708
语种: 英语
英文关键词: Change pattern ; Contribution rate curve ; Gradient ; Urban development ; Urban form ; Urban heat island
Scopus关键词: Atmospheric temperature ; Climate change ; Economics ; Geometry ; Gradient methods ; Land use ; Landforms ; Population distribution ; Population dynamics ; Population statistics ; Vegetation ; Change patterns ; Contribution rate ; Urban development ; Urban form ; Urban heat island ; Urban growth ; heat island ; temperature gradient ; urban development ; urban planning ; urban sprawl ; urbanization ; article ; China ; city planning ; developmental stage ; forest ; geometry ; heat ; human ; light intensity ; microclimate ; night ; population density ; urban area ; urbanization ; vegetation ; China
英文摘要: There is an increasing demand for urban form optimization to mitigate urban heat island (UHI) effect under the background of global climate change and urbanization. However, there is still a lack of understanding about how the relationship between urban form and UHI intensity changes under diverse urbanization contexts. This study aims to show the change patterns of the relationship between urban form and UHI intensity along the urban development gradient based upon the investigation of a total of 150 urban areas in the Jing-Jin-Ji region in China in 2000, 2005, 2010 and 2015. We defined a comprehensive urban development index taking into account the size of urban area, population density and night light intensity to classify the different levels of urban development. A multi-model comparison was carried out to validate the results. We found that the increase in urban continuity, sprawling, scale and density all enhanced UHI effect at the regional scale. However, the relationship between urban form indicators and UHI intensity demonstrated two opposite patterns along the urban development gradient: population density, geometric complexity and continuity, and general vegetation index of a city were found to be increasingly influential, while night light intensity, geometric elongation and forest coverage presented declining influence. Finally, the study obtained an ascending contribution rate curve for urban geometry indicators, a convex curve for urban size indicators and a declining curve for urban vegetation. These changes along the urban development gradient may be closely related to the changes of the microclimate in cities due to land use, social and economic activities in different urban development stages. The findings can contribute to more appropriate and effective urban planning in countries and regions undergoing rapid urbanization as a valuable reference. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158690
Appears in Collections:气候变化与战略

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作者单位: College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China; Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, 100871, China

Recommended Citation:
Liang Z.,Wu S.,Wang Y.,et al. The relationship between urban form and heat island intensity along the urban development gradients[J]. Science of the Total Environment,2020-01-01,708
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