Análise sazonal da temperatura de superfície em relação à arborização nos bairros da região central de Londrina-PR

Abstract

The changes in land use associated with urbanization have a significant impact on the urban microclimate, resulting in higher surface temperatures. The removal of vegetation for building construction and paving contributes to the temperature increase. Therefore, the presence of vegetation plays a crucial role in reducing pollution and improving thermal comfort in urban areas, as well as influencing surface temperatures. Understanding temperature patterns and their relationship with street tree density is important for promoting more sustainable urban planning and improving quality of life in cities. In this context, this study aims to analyze land surface temperature (LST) in 16 neighborhoods in the central region of Londrina, obtained through the thermal band of Landsat 8 satellite, throughout the four seasons of 2018. Additionally, we seek to investigate the correlation between LST and street tree density in the 16 study neighborhoods. The results revealed a moderate to weak correlation between the variables LST and tree density by neighborhood, ranging from 0.21 to 0.63 for minimum LST and -0.03 to -0.53 for maximum LST. This indicates that the presence of trees in urban areas may have a mitigating effect on surface temperatures, although their influence may also be affected by other factors. These findings highlight the importance of considering urban street tree planting as an effective strategy in urban planning to mitigate the effects of increased surface temperatures resulting from urbanization, which can contribute to creating public management actions for improving vegetation and the well-being of the urban population.