Banca de QUALIFICAÇÃO: PEDRO LEITE DE CASTRO UZEDA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE: PEDRO LEITE DE CASTRO UZEDA
DATA: 04/02/2026
HORA: 09:00
LOCAL: Anfiteatro do Departamento de Ecologia e Conservação
TÍTULO:

Assessing two decades of land use and water quality in a large Neotropical river
basin: trends and recommendations

PALAVRAS-CHAVES:

riparian vegetation; São Francisco River; sewage; urbanization; water
quality index

PÁGINAS: 21
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Aplicada
RESUMO:

Rapid human expansion and the conversion of natural environments have triggered
intense impacts on hydrological cycles and physical-chemical water parameters
worldwide. The São Francisco River basin stands out as one of the largest and most
significant basins in the Neotropical region; however, it has accumulated decades of
anthropogenic land-use changes. Despite the basin's socioeconomic importance, studies
evaluating the effects of these changes on its Water Quality Index (WQI) remain
unavailable. Here, we synthesized twenty years of land use and land cover (LULC) data
alongside water quality monitoring throughout the Upper São Francisco region to assess
the effects of LULC on local water quality. Our findings reveal a decrease in native
vegetation cover driven by the expansion of urban and agricultural areas. Furthermore,
we found that the percentage of vegetation cover positively influences the WQI,
whereas the percentage of urban cover poses a strong negative influence on this index.
Despite these relationships, the basin's WQI slightly increased over the 20-year period,
suggesting a possible mitigation of effects due to improved sewage treatment in the
region. Our findings suggest that the restoration of riparian vegetation, the
implementation of sustainable drainage systems, and the expansion of tertiary sewage
treatment can significantly improve water quality in this highly urbanized basin.

MEMBROS DA BANCA:
Externo à Instituição - MARIA CLARA VIEIRA MARTINS STARLING - UFMG (Membro)
Externo ao Programa - MARCELO BRAGA BUENO GUERRA - DQI/ICN (Suplente)
Interno - CECÍLIA GONTIJO LEAL - LANCASTER (Membro)
Interno - LARISSA FONSECA ANDRADE VIEIRA (Membro)
Presidente - PAULO DOS SANTOS POMPEU (Membro)