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

2021 ◽  
Vol 80 (3) ◽  
Author(s):  
Lucas Vituri Santarosa ◽  
Didier Gastmans ◽  
Tatiana Penteado Sitolini ◽  
Roberto Eduardo Kirchheim ◽  
Sebastian Balbin Betancur ◽  
...  
Keyword(s):  
Groundwater Recharge ◽  
Integrated Management ◽  
Sao Paulo ◽  
São Paulo ◽  
Aquifer System ◽  
Paulo State ◽  
Guarani Aquifer ◽  
São Paulo State

The Guarani Aquifer System – from regional reserves to local use

2020 ◽  
Vol 54 (1) ◽  
pp. qjegh2020-091 ◽  
Author(s):  
Ricardo Hirata ◽  
Stephen Foster
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Content Type ◽  
Aquifer System ◽  
Paulo State ◽  
Guarani Aquifer ◽  
São Paulo State ◽  
Local Use ◽  
Active Flow ◽  
Groundwater Body

The Guarani Aquifer System is a massive groundwater body underlying large areas of Brazil, Paraguay, Uruguay and Argentina, with a thickness of 50–600 m (averaging about 250 m). It is one of the world's largest sandstone aquifers. The mainly weakly-cemented sandstones were formed by aeolian, fluvial and lacustrine continental deposition during the Triassic–Jurassic period and are overlain by extensive Cretaceous basalt lava-flows. The system is totally storage-dominated, with recharge amounting to only about 0.2% of the estimated 30 000 km3 of water stored. Using 14C and81Kr techniques, it was possible to confirm extremely slow flow rates, with groundwater older than 730 000 years BP in some parts of São Paulo State, Brazil. The vast regional freshwater storage contrasts sharply with localized active flow systems of recharge areas, which are strongly impacted by land-use change. The aquifer is the best known and most exploited in São Paulo State (80% of total extraction) and the experience of groundwater use for the supply of Ribeirão Preto and São José do Rio Preto (both with populations of over 0.5 million), together with one transboundary urban area, will be summarized.Thematic collection: This article is part of the Hydrogeology of Sandstone collection available at: https://www.lyellcollection.org/cc/hydrogeology-of-sandstone

Relation between sedimentary framework and hydrogeology in the Guarani Aquifer System in São Paulo state, Brazil

2011 ◽  
Vol 31 (4) ◽  
pp. 444-456 ◽  
Author(s):  
Ricardo Hirata ◽  
Ana Gesicki ◽  
Ondra Sracek ◽  
Reginaldo Bertolo ◽  
Paulo César Giannini ◽  
...  
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Aquifer System ◽  
Paulo State ◽  
Guarani Aquifer ◽  
São Paulo State ◽  
Sedimentary Framework

scholarly journals ANALYSES OF WATER TABLE DEPTHS VARIATIONS IN AN OUTCROP AREA OF THE GUARANI AQUIFER SYSTEM IN BROTAS/SP-BRAZIL

Irriga ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 186-197
Author(s):  
Rodrigo Lilla Manzione ◽  
Bruna Camargo Soldera ◽  
Claudiane Otilia Paes ◽  
Edson Wendland
Keyword(s):  
Ground Water ◽  
Water Table ◽  
Sao Paulo ◽  
Water Levels ◽  
São Paulo ◽  
State University ◽  
Aquifer System ◽  
Paulo State ◽  
Guarani Aquifer ◽  
São Paulo State

ANALYSES OF WATER TABLE DEPTHS VARIATIONS IN AN OUTCROP AREA OF THE GUARANI AQUIFER SYSTEM IN BROTAS/SP-BRAZIL  RODRIGO LILLA MANZIONE 1; BRUNA CAMARGO SOLDERA 2; CLAUDIANE OTILIA PAES 3 E EDSON WENDLAND 4 1 UNESP/OURINHOS – São Paulo State University, Ourinhos, SP, Brazil. Email: [email protected] UNESP/FCA – São Paulo State University, Botucatu, SP, Brazil. Email: [email protected] UNESP/FCA – São Paulo State University, Botucatu, SP, Brazil. Email: [email protected] Department of Hydraulics and Sanitation – USP/EESC – University of São Paulo, São Carlos, SP, Brazil. Email: [email protected]  1 ABSTRACT Several factors may influence variations in ground water levels. Some of these factors present static behavior while others present dynamic changes over time. The differences in management operations in agricultural sites, plant development and agricultural practices have direct impact on the unsaturated zone, as the levels of recharge and water tables can respond differently due to local conditions.  Different information sources may be used and integrated in a statistical model to reveal the responses of ground water levels under certain conditions.  Understanding these processes involves meeting a way of representing correlated variables together to form a new and smaller set of derived variables with minimum loss of information, removing redundancy or duplication.  The objective of this study was to analyze the variations in water table depths using information from a groundwater monitoring network     in an outcrop area of the Guarani Aquifer System (GAS) in Brotas, São Paulo, Brazil, associated with soil, vegetation and  terrain variables,  which possibly influence the  groundwater dynamics.   A factorial analysis was applied to identify the underlying factors which would   explain    this pattern of correlation   within these sets of   study variables.  The main factors influencing the variations in   water table over the monitoring period were as follows:  sand particle size, terrain   attributes, soil texture, soil and crop management and vegetation. This methodology can be useful for groundwater management, policy making and regulation of soil use in watersheds, and regional studies, for example, maximizing information in data analysis. Keywords: factorial analysis, statistical modeling, recharge, Brazil  MANZIONE, R.L.; SOLDERA, B.C.; PAES, C.O.; WENDLAND, E.ANÁLISES DAS VARIAÇÕES DOS NÍVEIS FREÁTICOS EM UMA ÁREA DE AFLORAMENTO DO SISTEMA AQUÍFERO GUARANI EM BROTAS/SP-BRASIL  2 RESUMO Diversos fatores influenciam as variações de níveis freáticos. Alguns desses fatores apresentam comportamento estático enquanto outros apresentam mudanças dinâmicas ao longo do tempo. As diferenças nas operações de manejo do solo em áreas agrícolas, desenvolvimento de plantas e práticas agrícolas tem impactos diretos na zona não saturada uma vez que os níveis de recarga e lençóis freáticos podem responder a condições locais. Diferentes fontes de informação podem ser usadas e integradas em um modelo estatístico para revelar a resposta dos níveos de águas subterrâneas sob certas condições. Entender esses processos envolve encontrar uma maneira de representar variáveis correlacionadas juntas para formar um novo e menor conjunto de variáveis derivadas com uma perda mínima de informação, removendo redundâncias ou duplicações. O objetivo desse estudo foi analisar as variações dos níveis freáticos usando informações de uma rede de monitoramento de águas subterrâneas em uma área de afloramento do Sistema Aquífero Guarani (SAG) em Brotas, São Paulo, Brasil associadas a variáveis de solo, vegetação e terreno que possivelmente influenciem a dinâmica das águas subterrâneas. Foi aplicada a análise fatorial para identificar fatores que expliquem o padrão de correlação entre esse conjunto de variáveis observadas. Os principais fatores influenciando a variação dos níveis freáticos durante o período monitorado foi o tamanho da fração areia, atributos de terreno, textura do solo, manejo dos solos e culturas e vegetação. Essa metodologia pode ser útil para a gestão das águas subterrâneas, formulação de políticas e regulação do uso do solo em bacias hidrográficas e estudos regionais, por exemplo, maximizando as informações na análise de dados. Palavras-chave: análise fatorial, modelagem estatística, recarga, Brasil

scholarly journals Influence of Rainfall Seasonality in Groundwater Chemistry at Western Region of São Paulo State—Brazil

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1450
Author(s):  
Lais A. Maroubo ◽  
Marcos R. Moreira-Silva ◽  
José Jerônimo Teixeira ◽  
Marcos F. S. Teixeira
Keyword(s):  
Copper Ions ◽  
Rainfall Variability ◽  
Sao Paulo ◽  
Agricultural Activity ◽  
Western Region ◽  
São Paulo ◽  
Aquifer System ◽  
Paulo State ◽  
São Paulo State ◽  
The Mean

The present study evaluated the spatiotemporal variation in concentration of cadmium, lead and copper ions in groundwater wells in the stratigraphic subdivision “Santo Anastácio” that belongs to the Bauru aquifer system in the western region of São Paulo State. Exploratory statistics methods were employed to investigate the response of the concentration of these metals in the aquifer through the pluviometric index of the region. The results show a direct dependence of the mean monthly flow of the metals in the groundwaters to the monthly rainfall flow. The observed behavior was cyclic with a gradual increase and decrease in the flow throughout time. Two groups of cyclic variation were identified. The seasonality of the mean monthly flow of Cd2+ and Pb2+ was inversely proportional to the magnitude of the pluviometric index of the region studied. Meanwhile, the seasonality of Cu2+ was directly correlated to the seasonable rainfall variability. These behaviors lead us to point out that cadmium and lead come from minerals present in the aquifer itself and the presence of copper in groundwater is associated with an anthropogenic action due to the region’s agricultural activity. The study helps us better comprehend the behavior of the whole groundwater system through a comparison with temporal hydrogeochemistry.

scholarly journals Water-Rock Interactions in the Bauru Aquifer System – São Paulo State, Brazil

2017 ◽  
Vol 17 ◽  
pp. 388-391
Author(s):  
Marcia Regina Stradioto ◽  
Elias Hideo Teramoto ◽  
Maria Rita Caetano-Chang ◽  
Hung Kiang Chang
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Aquifer System ◽  
Paulo State ◽  
São Paulo State

Implantação da Residência Médica e Multiprofssional em Saúde da Família em um município paulista: percepção de residentes da primeira turma (2014-2016)

2018 ◽  
Vol 19 (2) ◽  
pp. 106-114 ◽  
Author(s):  
Liliane Maria Guimarães de Pinho ◽  
Vera Lúcia Garcia ◽  
Maria Cezira Fantini Nogueira-Martins
Keyword(s):  
Family Health ◽  
Sao Paulo ◽  
São Paulo ◽  
Paulo State ◽  
São Paulo State

Implementation of a multiprofessional residency in family health in a city of São Paulo state: perception of the first residents (2014-2016)

Arsenic in terrestrial invertebrates from riparian areas of the Piracicaba River Basin, São Paulo State, Brazil

2017 ◽  
Vol 314 (3) ◽  
pp. 1675-1681
Author(s):  
Elvis J. França ◽  
Elisabete A. De Nadai Fernandes ◽  
Felipe Y. Fonseca ◽  
Marcelo R. L. Magalhães ◽  
Mariana L. O. Santos
Keyword(s):  
River Basin ◽  
Sao Paulo ◽  
São Paulo ◽  
Riparian Areas ◽  
Terrestrial Invertebrates ◽  
Paulo State ◽  
São Paulo State ◽  
Piracicaba River

Occurrence of caffeine, fluoxetine, bezafibrate and levothyroxine in surface freshwater of São Paulo State (Brazil) and risk assessment for aquatic life protection

2021 ◽  
Author(s):  
Raquel Cardoso de Souza ◽  
Aline Andrade Godoy ◽  
Fábio Kummrow ◽  
Thyago Leandro dos Santos ◽  
Carlos Jesus Brandão ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Sao Paulo ◽  
São Paulo ◽  
Aquatic Life ◽  
Paulo State ◽  
São Paulo State
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