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Are Wildfires in the Wildland-Urban Interface Increasing Temperatures? A Land Surface Temperature Assessment in a Semi-Arid Mexican City

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  • Mariana Ayala-Carrillo

    (Departamento de Ingeniería Geomática e Hidráulica, División de Ingenierías, Universidad de Guanajuato, Guanajuato 36000, Mexico)

  • Michelle Farfán

    (Departamento de Ingeniería Geomática e Hidráulica, División de Ingenierías, Universidad de Guanajuato, Guanajuato 36000, Mexico)

  • Anahí Cárdenas-Nielsen

    (Departamento de Ingeniería Geomática e Hidráulica, División de Ingenierías, Universidad de Guanajuato, Guanajuato 36000, Mexico)

  • Richard Lemoine-Rodríguez

    (Geolingual Studies Team, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
    Earth Observation Center, German Aerospace Center, 82234 Oberpfaffenhofen, Germany)

Abstract

High rates of land conversion due to urbanization are causing fragmented and dispersed spatial patterns in the wildland-urban interface (WUI) worldwide. The occurrence of anthropogenic fires in the WUI represents an important environmental and social issue, threatening not only vegetated areas but also periurban inhabitants, as is the case in many Latin American cities. However, research has not focused on the dynamics of the local climate in the WUI. This study analyzes whether wildfires contribute to the increase in land surface temperature (LST) in the WUI of the metropolitan area of the city of Guanajuato (MACG), a semi-arid Mexican city. We estimated the pre- and post-fire LST for 2018–2021. Spatial clusters of high LST were detected using hot spot analysis and examined using ANOVA and Tukey’s post-hoc statistical tests to assess whether LST is related to the spatial distribution of wildfires during our study period. Our results indicate that the areas where the wildfires occurred, and their surroundings, show higher LST. This has negative implications for the local ecosystem and human population, which lacks adequate infrastructure and services to cope with the effects of rising temperatures. This is the first study assessing the increase in LST caused by wildfires in a WUI zone in Mexico.

Suggested Citation

  • Mariana Ayala-Carrillo & Michelle Farfán & Anahí Cárdenas-Nielsen & Richard Lemoine-Rodríguez, 2022. "Are Wildfires in the Wildland-Urban Interface Increasing Temperatures? A Land Surface Temperature Assessment in a Semi-Arid Mexican City," Land, MDPI, vol. 11(12), pages 1-15, November.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:12:p:2105-:d:980774
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    References listed on IDEAS

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    1. Luis Galiana-Martin & Gema Herrero & Jesus Solana, 2011. "A Wildland-Urban Interface Typology for Forest Fire Risk Management in Mediterranean Areas," Landscape Research, Taylor & Francis Journals, vol. 36(2), pages 151-171, April.
    2. Luis Inostroza & Massimo Palme & Francisco de la Barrera, 2016. "A Heat Vulnerability Index: Spatial Patterns of Exposure, Sensitivity and Adaptive Capacity for Santiago de Chile," PLOS ONE, Public Library of Science, vol. 11(9), pages 1-26, September.
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    Cited by:

    1. Yizhu Jiang & Jinling Kong & Yanling Zhong & Qiutong Zhang & Jingya Zhang, 2023. "An Enhanced Algorithm for Active Fire Detection in Croplands Using Landsat-8 OLI Data," Land, MDPI, vol. 12(6), pages 1-19, June.

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