Too hot to handle? On the cooling capacity of urban green spaces in a Neotropical Mexican city

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43310%2F22%3A43921582" target="_blank" >RIV/62156489:43310/22:43921582 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ufug.2022.127633" target="_blank" >https://doi.org/10.1016/j.ufug.2022.127633</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ufug.2022.127633" target="_blank" >10.1016/j.ufug.2022.127633</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Too hot to handle? On the cooling capacity of urban green spaces in a Neotropical Mexican city

Popis výsledku v původním jazyce

Urban areas are particularly vulnerable to climate change due to the Urban Heat Island (UHI) effect, which can be mitigated by urban vegetation through shading and evapotranspiration. Nevertheless, there is still a lack of spatially explicit information on the cooling capacity of green infrastructure for most Latin American cities. In this study, we employed Land Surface Temperature (LST) of the Neotropical Mexican city of Xalapa to (1) analyze its Surface UHI (SUHI) compared to its peri and extra-urban areas, (2) to assess the cooling capacity of urban green spaces larger than 1 ha, and (3) to evaluate the role of green spaces&apos; size, shape and their surrounding tree cover percentage (Tc) on green spaces cooling range. We evaluated the cooling range of green spaces and their relationships with green spaces metrics and Tc via a linear mixed-effect model and identify threshold values for the variables at 25, 50, 100, and 200 m from the borders of green spaces through Classification and Regression Trees. Xalapa exhibits a SUHI of 1.70 oC compared to its peri-urban area and 4.95 oC to the extra-urban area. Green spaces &gt; 2 ha mitigated heat at ~2 oC and the cooling range was influenced by the size of green spaces GREATER-THAN OR EQUAL TO 2.8 ha and Tc &gt; 21% at 50 m and only by Tc surrounding the green spaces at 100 m and 200 m. This shows that the size threshold of urban green spaces should be complemented with the presence of Tc starting at least 50 m to maximize the cooling capacity provided by the green infrastructure. Planning agendas should account for the interaction between the size of green spaces and the cumulative cooling effect of scattered vegetation inside urban areas towards compact green cities to cope with urban warming.

Název v anglickém jazyce

Too hot to handle? On the cooling capacity of urban green spaces in a Neotropical Mexican city

Popis výsledku anglicky

Urban areas are particularly vulnerable to climate change due to the Urban Heat Island (UHI) effect, which can be mitigated by urban vegetation through shading and evapotranspiration. Nevertheless, there is still a lack of spatially explicit information on the cooling capacity of green infrastructure for most Latin American cities. In this study, we employed Land Surface Temperature (LST) of the Neotropical Mexican city of Xalapa to (1) analyze its Surface UHI (SUHI) compared to its peri and extra-urban areas, (2) to assess the cooling capacity of urban green spaces larger than 1 ha, and (3) to evaluate the role of green spaces&apos; size, shape and their surrounding tree cover percentage (Tc) on green spaces cooling range. We evaluated the cooling range of green spaces and their relationships with green spaces metrics and Tc via a linear mixed-effect model and identify threshold values for the variables at 25, 50, 100, and 200 m from the borders of green spaces through Classification and Regression Trees. Xalapa exhibits a SUHI of 1.70 oC compared to its peri-urban area and 4.95 oC to the extra-urban area. Green spaces &gt; 2 ha mitigated heat at ~2 oC and the cooling range was influenced by the size of green spaces GREATER-THAN OR EQUAL TO 2.8 ha and Tc &gt; 21% at 50 m and only by Tc surrounding the green spaces at 100 m and 200 m. This shows that the size threshold of urban green spaces should be complemented with the presence of Tc starting at least 50 m to maximize the cooling capacity provided by the green infrastructure. Planning agendas should account for the interaction between the size of green spaces and the cumulative cooling effect of scattered vegetation inside urban areas towards compact green cities to cope with urban warming.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Urban Forestry &amp; Urban Greening

ISSN

1618-8667

e-ISSN

1610-8167

Svazek periodika

74

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

127633

Kód UT WoS článku

000819424800002

EID výsledku v databázi Scopus

2-s2.0-85132930295