Assessment of groundwater recharge along the Guarani aquifer system outcrop zone in São Paulo State (Brazil): an important tool towards integrated management

Santarosa, Lucas Vituri; Gastmans, Didier; Sitolini, Tatiana Penteado; Kirchheim, Roberto Eduardo; Betancur, Sebastián Balbín; Oliveira, Marcelo Eduardo Dias de; Campos, José Cláudio Viégas; Manzione, Rodrigo Lilla

doi:10.1007/s12665-021-09382-3

Cited by 13 publications

(5 citation statements)

References 85 publications

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“…For the municipality of Brotas, Brazil, Figure 3 displays the parameters that have already been reclassified using the values suggested by Aller et al [30] and Alam et al [35]. Through local geological dynamics, observable through the recharge map, we observe that 67% of the territory is occupied by the Botucatu and Pirambóia geological formations, i.e., the main structure of the Guarani aquifer, which includes sandstones formed in a desert environment [59,60]. Soils, as a reflection of geological processes, present favorable conditions for infiltration in more than 70% of the territory, with the main emphasis on lithic entisols, quartzipsamments entisols, and sandy ultisols.…”

Section: Pesticide-drastic-lu Parametersmentioning

confidence: 85%

“…After overlapping the basic parameters, the application of the Pesticide-DRASTIC-LU resulted in a cartographic product (Figure 4.a), which spatially demonstrates four zones according to the degree of the aquifer's vulnerability to contamination. The modeling of these areas aimed to identify which parts of the territory are less or more susceptible to the loss of groundwater ecosystem services, mainly the provision of quality water for Through local geological dynamics, observable through the recharge map, we observe that 67% of the territory is occupied by the Botucatu and Pirambóia geological formations, i.e., the main structure of the Guarani aquifer, which includes sandstones formed in a desert environment [59,60]. Soils, as a reflection of geological processes, present favorable conditions for infiltration in more than 70% of the territory, with the main emphasis on lithic entisols, quartzipsamments entisols, and sandy ultisols.…”

Section: Groundwater Vulnerability-pesticide-drastic-lu Modelmentioning

confidence: 99%

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Vulnerability Assessment of Guarani Aquifer Using PESTICIDE-DRASTIC-LU Model: Insights from Brotas Municipality, Brazil

Guerrero,

Gomes,

Lorandi

et al. 2024

Water

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Free aquifers have become an important water supply option for underdeveloped and developing countries, due to the resource quality and relatively low extraction prices. However, overexploitation and the lack of territorial planning guidelines in these areas endanger groundwater availability and quality. In this context, this study aimed to analyze the vulnerability to groundwater contamination and contribute to the conservation of the ecosystem services, provided by the Guarani aquifer in Brotas, Brazil, by applying the PESTICIDE-DRASTIC-LU model. The application of this model allowed the identification of priority conservation areas within the context of ecosystem services that groundwater provides to local inhabitants. To this end, we collected, treated, and analyzed seven different hydrogeological data to understand the environmental dynamics of the system and to identify which areas are most vulnerable to aquifer contamination. The results pointed out that 64% of the study area presents zones of high and very high vulnerability to contamination, due to the local hydrogeological characteristics (sandy soils and rocks) and the various anthropogenic activities, mainly with large plantations of sugar cane and eucalyptus. In addition, the mapping allowed the spatial demonstration of the places that should be considered a priority for the conservation of ecosystem services provided by local groundwater. Thus, our results can serve as a baseline to define public action strategies for the preservation and sustainable management of the Guarani aquifer areas.

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Section: Pesticide-drastic-lu Parametersmentioning

confidence: 85%

Section: Groundwater Vulnerability-pesticide-drastic-lu Modelmentioning

confidence: 99%

Vulnerability Assessment of Guarani Aquifer Using PESTICIDE-DRASTIC-LU Model: Insights from Brotas Municipality, Brazil

Guerrero,

Gomes,

Lorandi

et al. 2024

Water

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“…Estimation of recharge with any method is subject to a high amount of uncertainty and error. Choosing a suitable method is often dependent on the study's objective, whether to monitor paleo-recharge, long-term average recharge values, annual or monthly recharge estimates, area of estimation (aquifer/watershed/basin level), or spatial variation of recharge [81,82]. The chosen recharge method must address the complexity of geological formations, flow process, erratic nature of precipitation, the conversion rate of total input water to effective recharge, improvement of estimation practices, and the accuracy of data.…”

Section: Selection Of Suitable Recharge Estimation Methodsmentioning

confidence: 99%

The State-of-the-Art Estimation of Groundwater Recharge and Water Balance with a Special Emphasis on India: A Critical Review

2021

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Groundwater recharge estimation is essential for sustainable water management and water supply schemes. In this paper, we review groundwater recharge estimation techniques and identify the appropriate methods by considering India’s hydrological and climatic conditions. Significant components of recharge, factors affecting groundwater recharge, aquifer systems of India, and historical groundwater recharge estimation practices are reviewed. Currently used recharge estimation methods are assessed based on case studies. The most popular estimation methods are studied and compared based on their application in various regions. It is observed that the accuracy of the recharge estimates is largely influenced by false assumptions, the possibility of erroneous measurements, a potential lack of reliable data, and a variety of problems associated with parameter estimation. The suitability of different methods for a region is found to depend on time and space considerations, the objective of the study, hydrogeological condition, and availability of data. In Indian conditions, it is suggested to use water table fluctuation and water balance methods for the recharge estimation, provided that accurate water level measurements are assured.

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“…Os valores da recarga potencial média para os municípios que possuem afloramentos de rochas do SAG foram extraídos de (SANTAROSA et al, 2020), que utilizaram dados de satélites (Precipitação e Evapotranspiração) além de métodos empíricos para a estimativa do runoff e referem-se ao valor da recarga potencial média para o período de 2011 a 2016 (mm/ano), que variaram de 40,76 a 429,76 mm/ano (municípios de Barra Bonita e Ipeúna respectivamente), com média anual para a área de 231,34 mm (Figura 3C).…”

Section: Aspectos Hidrogeológicos E Geológicosunclassified

Prospecção Hidrogeológica Regional para Águas Minerais

2021

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O estudo propõe um modelo para a prospecção hidrogeológica de água mineral em escala regional, voltada à seleção preliminar de áreas alvo para a implantação de projetos de águas minerais. Para isso, foram considerados como parâmetros prospectivos: capacidade específica; espessura do aquífero; grau de confinamento; recarga potencial; densidade de poços; caracterização econômica (renda e tamanho do mercado local); além da caracterização hidroquímica, incluindo parâmetros que indicam a sua mineralização (condutividade elétrica), qualidade (nitrato) e classificação quanto ao potencial mineral (fluoreto). Todas as informações dos parâmetros selecionados foram avaliadas individualmente por meio da construção de mapas temáticos e estatisticamente. A partir da ponderação desses parâmetros, foi desenvolvido um modelo metodológico de prospecção, que aponta, por meio do ranqueamento de áreas, os alvos a serem priorizados em uma campanha exploratória detalhada. Para validação, o modelo foi aplicado na área representada pelos municípios com afloramentos de rochas do Sistema Aquífero Guarani (SAG) no estado de São Paulo, resultando em um ranqueamento da potencialidade e favorabilidade mineral, a serem priorizados em uma campanha de pesquisa detalhada.

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Assessment of groundwater recharge along the Guarani aquifer system outcrop zone in São Paulo State (Brazil): an important tool towards integrated management

Cited by 13 publications

References 85 publications

Vulnerability Assessment of Guarani Aquifer Using PESTICIDE-DRASTIC-LU Model: Insights from Brotas Municipality, Brazil

Vulnerability Assessment of Guarani Aquifer Using PESTICIDE-DRASTIC-LU Model: Insights from Brotas Municipality, Brazil

The State-of-the-Art Estimation of Groundwater Recharge and Water Balance with a Special Emphasis on India: A Critical Review

Prospecção Hidrogeológica Regional para Águas Minerais

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