How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment

Urban expansion is an important factor affecting the urban thermal environment. Moreover, understanding how urban expansion affects the thermal environment, both inside and outside the region, can be effectively applied to urban planning and management. Therefore, we conducted a quantitative study o...

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Main Authors: Zhiwei Yang, Yingbiao Chen, Zhifeng Wu
Format: Article
Language:English
Published: Elsevier 2021-07-01
Series:Ecological Indicators
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X21002971
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author Zhiwei Yang
Yingbiao Chen
Zhifeng Wu
author_facet Zhiwei Yang
Yingbiao Chen
Zhifeng Wu
author_sort Zhiwei Yang
collection DOAJ
description Urban expansion is an important factor affecting the urban thermal environment. Moreover, understanding how urban expansion affects the thermal environment, both inside and outside the region, can be effectively applied to urban planning and management. Therefore, we conducted a quantitative study on how urban expansion affects the thermal environment. We compared the changes in Natural cities (NCs) to understand urban expansion and used the thermal field value (TFV) (for assessing the thermal environment inside the region) and the thermal environment (TE FP) (for assessing the thermal environment outside the region) to represent the thermal environment. We found that urban expansion has a positive effect on the thermal environment both inside and outside NC. In addition, we confirmed that there was no correlation between the NC area and the mean TFV or the TE FP of the NC. Further, we found that in all 2020-NCs composed of a 2015-NC (O-NC) and a new expansion NC (E-NC), the mean TFV of the O-NC is higher than that of the E-NC. That is, there is a difference in the mean TFVs of the O-NC and the E-NC. Finally, we confirmed the proportion of the O-NC area as a factor affecting the mean TFV and TE FP of the NC.
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spelling doaj.art-0e7692a386514173b9b776cb075990052022-12-21T23:11:04ZengElsevierEcological Indicators1470-160X2021-07-01126107632How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environmentZhiwei Yang0Yingbiao Chen1Zhifeng Wu2School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China; Guangdong Province Engineering Technology Research Center for Geographical Conditions Monitoring and Comprehensive Analysis, Guangzhou 510006, ChinaSchool of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China; Corresponding authors at: School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China.School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China; Corresponding authors at: School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China.Urban expansion is an important factor affecting the urban thermal environment. Moreover, understanding how urban expansion affects the thermal environment, both inside and outside the region, can be effectively applied to urban planning and management. Therefore, we conducted a quantitative study on how urban expansion affects the thermal environment. We compared the changes in Natural cities (NCs) to understand urban expansion and used the thermal field value (TFV) (for assessing the thermal environment inside the region) and the thermal environment (TE FP) (for assessing the thermal environment outside the region) to represent the thermal environment. We found that urban expansion has a positive effect on the thermal environment both inside and outside NC. In addition, we confirmed that there was no correlation between the NC area and the mean TFV or the TE FP of the NC. Further, we found that in all 2020-NCs composed of a 2015-NC (O-NC) and a new expansion NC (E-NC), the mean TFV of the O-NC is higher than that of the E-NC. That is, there is a difference in the mean TFVs of the O-NC and the E-NC. Finally, we confirmed the proportion of the O-NC area as a factor affecting the mean TFV and TE FP of the NC.http://www.sciencedirect.com/science/article/pii/S1470160X21002971Urban expansionThermal environmentCorrelationQuantitative studyNatural city
spellingShingle Zhiwei Yang
Yingbiao Chen
Zhifeng Wu
How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment
Ecological Indicators
Urban expansion
Thermal environment
Correlation
Quantitative study
Natural city
title How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment
title_full How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment
title_fullStr How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment
title_full_unstemmed How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment
title_short How urban expansion affects the thermal environment? A study of the impact of natural cities on the thermal field value and footprint of thermal environment
title_sort how urban expansion affects the thermal environment a study of the impact of natural cities on the thermal field value and footprint of thermal environment
topic Urban expansion
Thermal environment
Correlation
Quantitative study
Natural city
url http://www.sciencedirect.com/science/article/pii/S1470160X21002971
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