Advanced search
Start date
Betweenand
Related content

IMPACT LAND USE AND LAND COVER AND CLIMATE CHANGE ON HYDROLOGICAL FLOWS BETWEEN GROUNDWATER AND SURFACE WATER IN THE GUARANI AQUIFER OUTCROP ZONE

Grant number: 23/13160-8
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2024
Effective date (End): March 31, 2028
Field of knowledge:Physical Sciences and Mathematics - Geosciences
Principal Investigator:Edson Cezar Wendland
Grantee:José Gescilam Sousa Mota Uchôa
Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:20/15434-0 - SACRE: integrated water solutions for resilient cities, AP.TEM

Abstract

With the intensification of the impacts of land use and land cover changes and climate change on the ecosystem services provided by water bodies, it is necessary to precisely understand the hydrological and biogeochemical processes that occur in the transition zone between surface and groundwater, also known as the hyporheic zone, as these play an essential role in the transport of nutrients and pollutants. However, little is still known about the dynamics of these processes and, consequently, the potential disruptions to their structure and functions. The Guarani Aquifer System (GAS), crucial for the water security and dynamics of groundwater in the state of São Paulo, is highly vulnerable to anthropogenic contamination in its outcrop areas where underground and surface flows converge. The present proposal was developed with the aim of improving the characterization of hydrological flows in this transition zone and the possible impacts on the outcrop areas of the SAG in the state of São Paulo. To achieve this, a systematic review and a database are proposed to assess the aforementioned impacts on quantitative, qualitative, and ecosystem service aspects. Through continuous qualitative and quantitative monitoring of a representative area of this aquifer system, a regional water balance model and a heat and nutrient transport model at a local scale will be developed. After calibration and validation of these models, it will be possible to characterize critical regions of this aquifer system and contribute to the understanding of the aforementioned impacts on hydrological flows and biogeochemical processes in the hyporheic zone. The present proposal will enable a better understanding of the dynamics of the SAG waters and their hydrological responses to current events and the analysis of future scenarios under conditions of climate change and land use and land cover changes.

News published in Agência FAPESP Newsletter about the scholarship:
Articles published in other media outlets (0 total):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Please report errors in scientific publications list using this form.