Banca de DEFESA: GABRIELA PAIVA MARQUES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GABRIELA PAIVA MARQUES
DATE: 27/02/2026
TIME: 14:30
LOCAL: Google meet
TITLE:

Urban Socio-Spatial Segregation and Environmental (In)Justice on the Margins of the Potengi River: Flood Vulnerability in Natal, Rio Grande do Norte

KEY WORDS:

Socio-spatial inequality; Socio-environmental risk; Environmental racism; Urbanization; Hydrological hazard.

PAGES: 76
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUMMARY:

Coastal municipalities are home to more than 60% of Brazil's population and face socio-environmental problems represented by growing disorderly urban expansion and socio-spatial segregation between privileged central areas and peripheries structured in areas of environmental risk and inhabited by socially vulnerable populations. The overall objective is to analyze the process of urban expansion and the production of socio-environmental inequality in Natal-RN, investigating the historical and spatial correlation between the occupation of areas susceptible to flooding and the ethnic-racial segregation of the black population in risk areas, focusing on the case study of the Cidade Alta neighborhood. This is a qualitative-quantitative study based on the hypothetical-deductive method through geospatial analysis in a Geographic Information System. The mapping of the flood-prone area of Natal was carried out using the HAND (Height Above the Nearest Drainage) model, generated with Copernicus DEM GLO-30, while the analysis of urban expansion was based on land use and land cover data from the MapBiomas project (Collection 10). For the case study in Cidade Alta, a Digital Terrain Model (DTM) was generated based on the PRODETUR (2006) contour lines, to which the 2010 census data on the black resident population were overlaid. The results show that urbanization has consolidated a scenario of disorderly expansion into environmentally fragile areas and occupation of areas near the Potengi River that are naturally susceptible to flooding. The research showed that socio-environmental vulnerability in Cidade Alta does not stem solely from income criteria and environmental characteristics, but rather from a process of racialized socio-territorial segregation that has produced a sacrifice zone where the risk of flooding mainly affects the black population. This study confirms that, under the logic of racism and environmental injustice, the urban landscape is structured unequally and turns the natural characteristics of the local landscape into exclusionary and risky spaces for socially vulnerable groups.

COMMITTEE MEMBERS:
Externo ao Programa - 3263586 - FRANCISCO JABLINSKI CASTELHANO - nullExterno à Instituição - JORIO BEZERRA CABRAL JUNIOR - UFAL
Presidente - 1759367 - REBECCA LUNA LUCENA