Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis

The spatial morphology of waterfront green spaces helps generate cooling effects to mitigate the urban heat island effect (UHI) in metropolis cities. To explore the contribution and influence of multi-dimensional spatial indices on the mitigation of UHIs, the green space of the riparian buffer along...

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Autores principales:	Yunfang Jiang, Jing Huang, Tiemao Shi, Hongxiang Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	urban heat island (UHI) blue–green space spatial morphology urban cooling effect (UCI) boosted regression trees (BRT) marginal effect (ME) Medicine R
Acceso en línea:	https://doaj.org/article/8ccb1c1370474df38d07f273dc34cd60
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id	oai:doaj.org-article:8ccb1c1370474df38d07f273dc34cd60
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spelling	oai:doaj.org-article:8ccb1c1370474df38d07f273dc34cd602021-11-11T16:30:59ZInteraction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis10.3390/ijerph1821114041660-46011661-7827https://doaj.org/article/8ccb1c1370474df38d07f273dc34cd602021-10-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/21/11404https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601The spatial morphology of waterfront green spaces helps generate cooling effects to mitigate the urban heat island effect (UHI) in metropolis cities. To explore the contribution and influence of multi-dimensional spatial indices on the mitigation of UHIs, the green space of the riparian buffer along 18 river channels in Shanghai was considered as a case study. The spatial distribution data of the land surface temperature (LST) in the study area were obtained by using remote sensing images. By selecting the related spatial structure morphological factors of the waterfront green space as the quantitative description index, the growth regression tree model (BRT) was adapted to analyze the contribution of various indexes of the waterfront green space on the distribution of the LST and the marginal effect of blue–green synergistic cooling. In addition, mathematical statistical analysis and spatial analysis methods were used to study the influence of the morphological group (MG) types of riparian green spaces with different morphological characteristics on the LST. The results showed that in terms of the spatial structure variables between blue and green spaces, the contribution of river widths larger than 30 m was more notable in decreasing the LST. In the case of a larger river width, the marginal effect of synergistic cooling could be observed in farther regions. The green space that had the highest connectivity degree and was located in the leeward direction of the river exhibited the lowest LST. In terms of the spatial morphology, the fractional cover values of the vegetation (Fv) and area (A) of the green space were the main factors affecting the cooling effect of the green space. For all MG types, a large green patch that had a high green coverage and connectivity degree, as well as was distributed in the leeward direction of the river, corresponded to the lowest LST. The research presented herein can provide methods and development suggestions for optimizing spatial thermal comfort in climate adaptive cities.Yunfang JiangJing HuangTiemao ShiHongxiang WangMDPI AGarticleurban heat island (UHI)blue–green spacespatial morphologyurban cooling effect (UCI)boosted regression trees (BRT)marginal effect (ME)MedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 11404, p 11404 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	urban heat island (UHI) blue–green space spatial morphology urban cooling effect (UCI) boosted regression trees (BRT) marginal effect (ME) Medicine R
spellingShingle	urban heat island (UHI) blue–green space spatial morphology urban cooling effect (UCI) boosted regression trees (BRT) marginal effect (ME) Medicine R Yunfang Jiang Jing Huang Tiemao Shi Hongxiang Wang Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis
description	The spatial morphology of waterfront green spaces helps generate cooling effects to mitigate the urban heat island effect (UHI) in metropolis cities. To explore the contribution and influence of multi-dimensional spatial indices on the mitigation of UHIs, the green space of the riparian buffer along 18 river channels in Shanghai was considered as a case study. The spatial distribution data of the land surface temperature (LST) in the study area were obtained by using remote sensing images. By selecting the related spatial structure morphological factors of the waterfront green space as the quantitative description index, the growth regression tree model (BRT) was adapted to analyze the contribution of various indexes of the waterfront green space on the distribution of the LST and the marginal effect of blue–green synergistic cooling. In addition, mathematical statistical analysis and spatial analysis methods were used to study the influence of the morphological group (MG) types of riparian green spaces with different morphological characteristics on the LST. The results showed that in terms of the spatial structure variables between blue and green spaces, the contribution of river widths larger than 30 m was more notable in decreasing the LST. In the case of a larger river width, the marginal effect of synergistic cooling could be observed in farther regions. The green space that had the highest connectivity degree and was located in the leeward direction of the river exhibited the lowest LST. In terms of the spatial morphology, the fractional cover values of the vegetation (Fv) and area (A) of the green space were the main factors affecting the cooling effect of the green space. For all MG types, a large green patch that had a high green coverage and connectivity degree, as well as was distributed in the leeward direction of the river, corresponded to the lowest LST. The research presented herein can provide methods and development suggestions for optimizing spatial thermal comfort in climate adaptive cities.
format	article
author	Yunfang Jiang Jing Huang Tiemao Shi Hongxiang Wang
author_facet	Yunfang Jiang Jing Huang Tiemao Shi Hongxiang Wang
author_sort	Yunfang Jiang
title	Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis
title_short	Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis
title_full	Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis
title_fullStr	Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis
title_full_unstemmed	Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis
title_sort	interaction of urban rivers and green space morphology to mitigate the urban heat island effect: case-based comparative analysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8ccb1c1370474df38d07f273dc34cd60
work_keys_str_mv	AT yunfangjiang interactionofurbanriversandgreenspacemorphologytomitigatetheurbanheatislandeffectcasebasedcomparativeanalysis AT jinghuang interactionofurbanriversandgreenspacemorphologytomitigatetheurbanheatislandeffectcasebasedcomparativeanalysis AT tiemaoshi interactionofurbanriversandgreenspacemorphologytomitigatetheurbanheatislandeffectcasebasedcomparativeanalysis AT hongxiangwang interactionofurbanriversandgreenspacemorphologytomitigatetheurbanheatislandeffectcasebasedcomparativeanalysis
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Interaction of Urban Rivers and Green Space Morphology to Mitigate the Urban Heat Island Effect: Case-Based Comparative Analysis

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