Movimento do herbicida tebutiuron em dois solos representativos das áreas de afloramento do Aqüífero Guarani no Brasil.

2008

Procedimentos analíticos e avaliação da presença de herbicidas em áreas de recarga do aqüífero Guarani na região das nascentes do rio Araguaia, MT/GO.

2008

Análise espacial do potencial de lixiviação de herbicidas em áreas de afloramento do aqüífero Guarani na Alta Bacia do Rio Taquari, MS.

2008

Estimativa da contaminação do aqüífero Guarani por agrotóxicos e avaliação dos riscos à saúde humana.

2008

Processos erosivos em áreas de afloramento do sistema Aqüífero Guarani no Brasil.

2008

Controle dos processos erosivos em áreas de afloramento do Aqüífero Guarani no Brasil.

2008

Ordenamento agroambiental das áreas de afloramento do aqüífero Guarani: conceitos e aplicações.

2008

Geoprocessamento como ferramenta integradora para o planejamento do uso agrícola das terras e a manutenção da qualidade das águas subterrâneas nas áreas de afloramento do Aqüífero Guarani.

2008

Proposta de boas práticas agrícolas para as áreas de afloramento do Aqüífero Guarani em Ribeirão Preto, SP.

2008

Hidrogeologia do Sistema Aqüífero Bauru no município de São José do Rio Preto (SP)

Pós-graduação em Geociências e Meio Ambiente - IGCE

Caracterização da radioatividade das águas do aquífero Guarani

This research aimed to evaluate the quality of “Aquifer Guarani’s” waters in the context of the current legislation related to the radioactive aspects, besides correlating the values obtained with chemical data already available, seeking to make an integrated analysis of the data in order to establish possible tendencies with directions of underground flow. The determinations of the total radioactivity beta and alpha were accomplished through the employment of the available infrastructure at the LABIDRO – Laboratory of Isotope and Hydrochemistry of the Petrology and Metallogeny of UNESP’s Institute of Geosciences and Exact Sciences, largely implanted through resources supplied by FAPESP and CNPq. The systems were gauged for the determinations of interest with tracer of known activity. Preliminaries tests were accomplished with high radioactivity samples of water to check the applicability of the methods. It was ended that the waters analyzed possess low radioactivity, as much alpha as total beta, and, therefore, they are appropriate for the human consumption; that there is not lineal relationship between the obtained data and the chemical data already available; and that the direction of the underground flow of the Aquifer doesn't check any tendency to the generated data.

Mapeamento geoestatístico da vulnerabilidade do Aquífero Guarani no município de Ribeirão Bonito - SP

The Guaraní aquifer has relevant importance both as a source of water for several urban centres and the development of agriculture and livestock. In recharge areas the aquifer is free and, therefore, subject to contamination of effluents and tailings deposited on soils that cover it. Thus, it becomes crucial not only its protection at all levels, as the knowledge of its degree of natural vulnerability. The present work used geostatistics modeling techniques to study the natural vulnerability of the Guaraní aquifer in the city of Rio Bonito, State of São Paulo, southeastern Brazil, where the Guarani aquifer is exposed. These techniques, extensively used in evaluation studies of mineral deposits and oil tanks, can be adapted to produce a spatial classification or a regionalisation of probabilistic indices of vulnerability. By ordinary kriging method maps of vulnerability classification were obtained. To determine the vulnerability of the aquifer was employed the Aquifer Vulnerability Index (AVI), which requires knowledge of unsaturated zone thickness and permeability. The final product was a map with probabilistic index of vulnerability of the Guaraní aquifer, which presented values between 0 to 0.33 years, framing the area studied in AVI class extremely high vulnerability

O Aquífero Guarani no contexto das mudanças climáticas globais.

2008

Aspectos do comportamento dos herbicidas diuron e tebutiuron em solos das áreas de recarga do Aqüifero Guarani no estado de São Paulo.

2008

Adsorção e dessorção dos herbicidas diuron e tebutiuron em solos das áreas de afloramento do aqüifero Guarani na região de Ribeirão Preto.

2008