Avaliação das áreas verdes urbanas de Medianeira – PR

Abstract

Green areas are extremely important both for environmental preservation and for public policies aimed at the population's quality of life and health, and play a fundamental role through their ecosystem balance functions within the modified space that integrates the urban fabric. Knowledge about green areas is opportune for the purposes of analysis and decision-making by public bodies, with the aim of adopting measures for possible problems of local afforestation. Therefore, this work aimed to evaluate the green areas of the urban agglomeration of the municipality of Medianeira/PR with the generation of the green areas index (IAV). The analyzes were carried out with the aid of geotechnologies to generate statistical data of such coverage and to construct thematic maps. For image processing, merging the multispectral and panchromatic bands, the QGIS software was used, and the Semi-Automatic Classification Plugin (SCP) and Dzetsaka: classification tools for generating maps and quantifying green areas. The images obtained were those of the CBERS 04A satellite with 8 and 2 meters of spatial resolution on August 03, 2022. According to the Dzetsaka and SCP classifiers, the ratios of 143.74 m² of and 143.69 m² of green areas per inhabitant. It was verified that the values are above the WHO recommendation limit of 12 m² of green area per inhabitant found, and consistent with the SBAU recommendation of 15 m². However, due to the presence of green areas located mostly in permanent preservation areas and considering that the population is below the Master Plan estimate, it is necessary to apply this methodology again with updated data for public planning purposes.