Analysis of Córdoba's urban trees identifies which species best tolerate heat
The orange tree emerges as one of the most heat-vulnerable trees, according to a University of Córdoba (UCO) study that analyzed 17 tree species found in Córdoba's urban environment.
A recent study from the University of Córdoba identified which tree species are most resilient to rising temperatures within the city's urban environment. Researchers Cristina C. Bastias and Sonia Vega examined 17 tree species commonly found in Córdoba's streets and parks, considering their origin, climate, and functional traits.
The team measured the photosynthetic efficiency of each species to determine the temperature at which their performance started to decline. Their findings, published in Urban Forestry & Urban Greening, reveal that not all tree species react equally to higher temperatures. Mediterranean and temperate native species, such as holm oak and olive, exhibited greater heat tolerance than exotic, subtropical species like orange, jacaranda, and poplar.
This resilience can be attributed to structural traits in native Mediterranean trees, including higher wood density, thicker leaves, and higher leaf mass per area. While leaf habit (evergreen vs. deciduous) did not impact heat tolerance, the results underscore the importance of selecting tree species that can withstand increasing temperatures in urban areas like Córdoba.
By incorporating these findings into urban planning, cities can cultivate more resilient green infrastructure capable of coping with the climate challenges posed by global warming.
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