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With the acceleration of urbanization, the urban heat island (UHI) effect has intensified. Urban green space can retard the UHI effectively. However, most existing work has only focused on hot regions, while little attention has been paid to cold regions. Furthermore, existing research does not classify urban green spaces according to the presence or absence of water, which will lead to inaccurate results. This paper takes four cities in cold regions of China as examples and studies the cooling effects of two different types of urban green space. The results indicate that for green spaces without water, the cooling intensity is related to the background temperature and area of the green spaces, while for green spaces containing water bodies, the area of the internal water body is the key influencing factor. Specifically, there is a threshold value of efficiency (TVoE) for the area of green spaces without water, while there is no TVoE for green spaces containing water bodies. Additionally, there is a TVoE for the water/land ratio of the green spaces containing water bodies in the four cities. The methods and results of this study can provide reference for future research and for urban planners designing urban green spaces.
Keywords
Urban heat island, Urban green space, Urban cold island, Threshold value of efficiency, Water/land ratio, Urban planning, Climate adaptation
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CURRENT STATUS: Under Review
Version 1
Posted 30 Mar, 2021
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Reviews received
Received 07 May, 2021
Reviewers invited
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Editor invited
On 11 Feb, 2021
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On 25 Jan, 2021
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Subject Areas
City Management and Urban Policy
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This preprint is under consideration at Urban Ecosystems. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 30 Mar, 2021
No community comments so far
Reviews received
Received 07 May, 2021
Reviewers invited
Invitations sent on 07 May, 2021
Editor invited
On 11 Feb, 2021
First submitted
On 25 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
City Management and Urban Policy
License:
This work is licensed under a CC BY 4.0 License. Read Full License
With the acceleration of urbanization, the urban heat island (UHI) effect has intensified. Urban green space can retard the UHI effectively. However, most existing work has only focused on hot regions, while little attention has been paid to cold regions. Furthermore, existing research does not classify urban green spaces according to the presence or absence of water, which will lead to inaccurate results. This paper takes four cities in cold regions of China as examples and studies the cooling effects of two different types of urban green space. The results indicate that for green spaces without water, the cooling intensity is related to the background temperature and area of the green spaces, while for green spaces containing water bodies, the area of the internal water body is the key influencing factor. Specifically, there is a threshold value of efficiency (TVoE) for the area of green spaces without water, while there is no TVoE for green spaces containing water bodies. Additionally, there is a TVoE for the water/land ratio of the green spaces containing water bodies in the four cities. The methods and results of this study can provide reference for future research and for urban planners designing urban green spaces.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
The full text of this article is available to read as a PDF.
This is a list of supplementary files associated with this preprint. Click to download.
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