---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '22517'
abstract:
- lang: eng
  text: The capacity of vegetation to mitigate excessive urban heat has been well
    documented. However, the cooling potential provided by urban vegetation during
    heatwaves is less known even though heatwaves have been projected to be more severe
    with climate change. Across 24 global metropolises, we combine 30 m resolution
    satellite observations with a theoretical leaf energy balance model to quantify
    the change of the leaf-to-air temperature difference and stomatal conductance
    during heatwaves from 2000 to 2020. We found the responses of urban vegetation
    to heatwaves differ significantly across cities and they are mediated by climate
    forcing and human management. During heatwaves, vegetation in Mediterranean and
    midlatitude-humid cities shows a significant decrease in cooling potential in
    most cases due to large stomatal closures, while vegetation in arid cities shows
    a cooling enhancement with an unmodified stomatal opening likely in response to
    intense irrigation. In comparison, the cooling potential of vegetation in high-latitude
    humid cities does not show significant changes. These responses have implications
    for future urban vegetation management strategies and urban planning.
article_number: '014035'
article_processing_charge: No
article_type: letter_note
author:
- first_name: Jiacheng
  full_name: Zhao, Jiacheng
  last_name: Zhao
- first_name: Naika
  full_name: Meili, Naika
  last_name: Meili
- first_name: Xiang
  full_name: Zhao, Xiang
  last_name: Zhao
- first_name: Simone
  full_name: Fatichi, Simone
  id: cf8e546b-a9b0-11f0-a43b-aa89ed1b56d6
  last_name: Fatichi
citation:
  ama: Zhao J, Meili N, Zhao X, Fatichi S. Urban vegetation cooling potential during
    heatwaves depends on background climate. <i>Environmental Research Letters</i>.
    2023;18(1). doi:<a href="https://doi.org/10.1088/1748-9326/acaf0f">10.1088/1748-9326/acaf0f</a>
  apa: Zhao, J., Meili, N., Zhao, X., &#38; Fatichi, S. (2023). Urban vegetation cooling
    potential during heatwaves depends on background climate. <i>Environmental Research
    Letters</i>. IOP Publishing. <a href="https://doi.org/10.1088/1748-9326/acaf0f">https://doi.org/10.1088/1748-9326/acaf0f</a>
  chicago: Zhao, Jiacheng, Naika Meili, Xiang Zhao, and Simone Fatichi. “Urban Vegetation
    Cooling Potential during Heatwaves Depends on Background Climate.” <i>Environmental
    Research Letters</i>. IOP Publishing, 2023. <a href="https://doi.org/10.1088/1748-9326/acaf0f">https://doi.org/10.1088/1748-9326/acaf0f</a>.
  ieee: J. Zhao, N. Meili, X. Zhao, and S. Fatichi, “Urban vegetation cooling potential
    during heatwaves depends on background climate,” <i>Environmental Research Letters</i>,
    vol. 18, no. 1. IOP Publishing, 2023.
  ista: Zhao J, Meili N, Zhao X, Fatichi S. 2023. Urban vegetation cooling potential
    during heatwaves depends on background climate. Environmental Research Letters.
    18(1), 014035.
  mla: Zhao, Jiacheng, et al. “Urban Vegetation Cooling Potential during Heatwaves
    Depends on Background Climate.” <i>Environmental Research Letters</i>, vol. 18,
    no. 1, 014035, IOP Publishing, 2023, doi:<a href="https://doi.org/10.1088/1748-9326/acaf0f">10.1088/1748-9326/acaf0f</a>.
  short: J. Zhao, N. Meili, X. Zhao, S. Fatichi, Environmental Research Letters 18
    (2023).
das_tickbox: '1'
date_created: 2026-07-27T12:30:24Z
date_published: 2023-01-12T00:00:00Z
date_updated: 2026-08-06T11:33:12Z
day: '12'
doi: 10.1088/1748-9326/acaf0f
extern: '1'
fulldoi: https://doi.org/10.1088/1748-9326/acaf0f
intvolume: '        18'
issue: '1'
keyword:
- Urban vegetation
- Heatwave
- Cooling potential
- Stomatal behavior
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
- open_access: '1'
  url: https://doi.org/0.1088/1748-9326/acaf0f
month: '01'
oa: 1
oa_version: Published Version
publication: Environmental Research Letters
publication_identifier:
  eissn:
  - 1748-9326
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Urban vegetation cooling potential during heatwaves depends on background climate
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 18
year: '2023'
...