Strong contributions of local background climate to the cooling effect of urban green vegetation

Abstract Utilization of urban green vegetation (UGV) has been recognized as a promising option to mitigate urban heat island (UHI) effect. While we still lack understanding of the contributions of local background climate to the cooling effect of UGV. Here we proposed and employed a cooling effect f...

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Autores principales:	Zhaowu Yu, Shaobin Xu, Yuhan Zhang, Gertrud Jørgensen, Henrik Vejre
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/eca376c5ee974b5f8077dd0008160bc5
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spelling	oai:doaj.org-article:eca376c5ee974b5f8077dd0008160bc52021-12-02T15:08:12ZStrong contributions of local background climate to the cooling effect of urban green vegetation10.1038/s41598-018-25296-w2045-2322https://doaj.org/article/eca376c5ee974b5f8077dd0008160bc52018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25296-whttps://doaj.org/toc/2045-2322Abstract Utilization of urban green vegetation (UGV) has been recognized as a promising option to mitigate urban heat island (UHI) effect. While we still lack understanding of the contributions of local background climate to the cooling effect of UGV. Here we proposed and employed a cooling effect framework and selected eight typical cities located in Temperate Monsoon Climate (TMC) and Mediterranean Climate (MC) demonstrate that local climate condition largely affects the cooling effect of UGV. Specifically, we found increasing (artificial) rainfall and irrigation contribute to improving the cooling intensity of grassland in both climates, particularly in the hot-dry environment. The cities with high relative humidity would restrict the cooling effect of UGV. Increasing wind speed would significantly enhance the tree-covered while weakening the grass-covered UGVs’ cooling effect in MC cities. We also identified that, in order to achieve the most effective cooling with the smallest sized tree-covered UGV, the area of trees in both climate zones’ cities should generally be planned around 0.5 ha. The method and results enhance understanding of the cooling effect of UGVs on larger (climate) scales and provide important insights for UGV planning and management.Zhaowu YuShaobin XuYuhan ZhangGertrud JørgensenHenrik VejreNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhaowu Yu Shaobin Xu Yuhan Zhang Gertrud Jørgensen Henrik Vejre Strong contributions of local background climate to the cooling effect of urban green vegetation
description	Abstract Utilization of urban green vegetation (UGV) has been recognized as a promising option to mitigate urban heat island (UHI) effect. While we still lack understanding of the contributions of local background climate to the cooling effect of UGV. Here we proposed and employed a cooling effect framework and selected eight typical cities located in Temperate Monsoon Climate (TMC) and Mediterranean Climate (MC) demonstrate that local climate condition largely affects the cooling effect of UGV. Specifically, we found increasing (artificial) rainfall and irrigation contribute to improving the cooling intensity of grassland in both climates, particularly in the hot-dry environment. The cities with high relative humidity would restrict the cooling effect of UGV. Increasing wind speed would significantly enhance the tree-covered while weakening the grass-covered UGVs’ cooling effect in MC cities. We also identified that, in order to achieve the most effective cooling with the smallest sized tree-covered UGV, the area of trees in both climate zones’ cities should generally be planned around 0.5 ha. The method and results enhance understanding of the cooling effect of UGVs on larger (climate) scales and provide important insights for UGV planning and management.
format	article
author	Zhaowu Yu Shaobin Xu Yuhan Zhang Gertrud Jørgensen Henrik Vejre
author_facet	Zhaowu Yu Shaobin Xu Yuhan Zhang Gertrud Jørgensen Henrik Vejre
author_sort	Zhaowu Yu
title	Strong contributions of local background climate to the cooling effect of urban green vegetation
title_short	Strong contributions of local background climate to the cooling effect of urban green vegetation
title_full	Strong contributions of local background climate to the cooling effect of urban green vegetation
title_fullStr	Strong contributions of local background climate to the cooling effect of urban green vegetation
title_full_unstemmed	Strong contributions of local background climate to the cooling effect of urban green vegetation
title_sort	strong contributions of local background climate to the cooling effect of urban green vegetation
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/eca376c5ee974b5f8077dd0008160bc5
work_keys_str_mv	AT zhaowuyu strongcontributionsoflocalbackgroundclimatetothecoolingeffectofurbangreenvegetation AT shaobinxu strongcontributionsoflocalbackgroundclimatetothecoolingeffectofurbangreenvegetation AT yuhanzhang strongcontributionsoflocalbackgroundclimatetothecoolingeffectofurbangreenvegetation AT gertrudjørgensen strongcontributionsoflocalbackgroundclimatetothecoolingeffectofurbangreenvegetation AT henrikvejre strongcontributionsoflocalbackgroundclimatetothecoolingeffectofurbangreenvegetation
_version_	1718388289187086336

Strong contributions of local background climate to the cooling effect of urban green vegetation

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