Land use and the occurrence of hydrological events in the city of Goiânia - Goiás

Abstract

Capital cities are complex urban systems of relevantsignificant socioeconomic importance and with very similar growth dynamics, especially in the Global South. Such similarities are also observed when facing the challenges that are inherent to territorial expansion, including urban territorial planning with an emphasis on land use and occupation. Therefore, the understanding of this occupation process is fundamental for proposing measures that aim to offer residents a safe and secured balanced environment. In that regard, the main objective of the research was to characterize the land use and occupation of land in the area studied and relate it to the occurrence of hydrological events. The methodology used is based on the classification model by Souza et al. (2020), which establishes land use categories for every couplein different pairs of years. The results show that hydrological events have been occurring mainly in areas classified as urbanized, with flooding episodes having increased in absolute numbers along with the increase in urbanized areas and demographic increase in the population growth.