Aquifer Recharge
Mostrando 13-24 de 34 artigos, teses e dissertações.
-
13. Análise estatística da influência da precipitação e de características do solo na variação do nível d´água em área de recarga do aquífero Guarani / Statistical analysis about the influence of precipitation and soil characteristics on the water level fluctuation on recharge area of the Guarani aquifer system recharge
The increasing of water use to different consumes have generated the growing of researches related about groundwater resources. The recharges quantification is a indispensible requirement to management of these resources. The main objective of this research is to analyze the influence of precipitation and soil characteristics on the water level fluctuations
Publicado em: 2009
-
14. Comportamento do herbicida hexazinone em área de recarga do aqüífero Guarani cultivada com cana-de-açúcar
São Paulo state (Brazil) has an important area of sugarcane production, mainly for obtaining alcohol and sugar, where there is an intensive use of pesticides. An important recharge zone of Guarani aquifer, with supplies water for the local population, is located at Ribeirão Preto city, so the local behavior of pesticides must be investigated. The GUS index
Química Nova. Publicado em: 2009
-
15. Gestão das águas subterrâneas transfronteiriças: o caso do Sistema Aquífero Guarani / Transboundary groundwater management: the case of Guarani Aquifer System
The transboundary groundwater management emerges as a new paradigm. Nowadays there is talk in much change, especially in the environmental area, but very little has been done about it. The great challenge for society in the XXI century will be how we think the water resources management. Historically the water resources management has been directed to expand
Publicado em: 2009
-
16. GRANTS FOR GROUNDWATER MANAGEMENT AT SANTA MARIA RIVER BASIN/RS / SUBSÍDIO PARA GESTÃO DAS ÁGUAS SUBTERRÂNEAS NA BACIA HIDROGRÁFICA DO RIO SANTA MARIA/RS
This study aims to provide subsidies for groundwater management at the basin of Rio Santa Maria-BHRSM. Located in the southwest of Rio Grande do Sul state, Brazil, on the edge of Paraná Basin and transitioning towards the Uruguaio Sul-Riograndense Shield, has an area of 15,797,300 square kilometers. About 16 formations occur in outcrops Pavão (2004), of wh
Publicado em: 2009
-
17. Determinação da recarga profunda na bacia-piloto do Ribeirão da Onça em zona de afloramento do Sistema Aqüífero Guarani a partir de balanço hídrico em zona saturada / Determination of the deep recharge in the Ribeirão da Onça pilot basin in the outcrop zone of the Guarani Aquifer System through water balance in the saturated zone
Main objective of this work was the determination of the deep recharge in the Ribeirão da Onça basin through water balance in the soil saturated zone. This basin is located in the outcrop zone of the Guarani Aquifer System (GAS) in the São Paulo State - Brazil and is covered by cenozoic sedimentary soil. The water balance model involved the determination
Publicado em: 2008
-
18. Gestão das Áreas de Recarga do Aqüífero Guarani: o caso do município de Ribeirão Preto, São Paulo / Management of the Guarani aquifer recharge area: The case of Ribeirão Preto municipality, São Paulo
A sociedade contemporânea cria riscos de todas as ordens, ampliando o significado desse conceito. O risco pode estar associado à ameaças naturais, mas cada vez mais está relacionado à ações humanas, em especial devido ao uso de tecnologias. O uso do solo, tanto para fins agrícolas quanto urbanos, gera possibilidades de contaminação de áreas sensí
Publicado em: 2008
-
19. Caracterização hidrogeológica do aquífero cauê, quadrilátero ferrífero, MG: Subsídios para a gestão dos recursos hídricos no quadrilátero ferrífero
The Cauê aquifer encompasses the geological unit that is the host of the Iron Quadrangle bodies of iron ore (Cauê formation). It has got significant hydrogeological potential, which is used for part of the water supply for Belo Horizontes metropolitan area, and has got a fundamental importance for the maintenance of the general environmental conditions of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/12/2007
-
20. Diagnóstico espaço-temporal da ocorrência de herbicidas nas águas superficiais e sedimentos do Rio Corumbataí e principais afluentes
Residues of herbicides from sugarcane were monitored in waters and sediments of Corumbataí River and tributaries. Ametryne, atrazine, simazine, hexazinone, glyphosate, and clomazone were detected in water samples, with negligible levels of ametryne and glyphosate in sediment samples. The area of recharge of the Guarani aquifer presented the highest triazine
Química Nova. Publicado em: 2007-10
-
21. Tridimensional modelling of groundwater flow in an unconfined, shallow aquifer in Parque Ecologico Tiete, São Paulo / Modelagem tridimensional de fluxo de águas subterrâneas em um aqüífero livre e raso: aplicação no Parque Ecológico do Tietê - São Paulo
The importance of studying unconfined and shallow aquifers is verified when taking into account that these aquifers are highly vulnerable to contamination and that they are often located under heavily populated regions. A detailed three-dimensional and transient model, which represents the groundwater flow in an area of an unconfined and shallow aquifer at t
Publicado em: 2007
-
22. Geoprocessamento como ferramenta de apoio à gestão dos recursos hídricos subterrâneos do Distrito Federal
In the Federal District of Brasilia (Capital of Brazil), the groundwater demand has growin significantly in the last decades. Migratory process promoted by local government policies, population increasing and inadequate territory occupation are the main factors that compromises qualitatively and quantitatively subsurface water resources. In this sense, it is
Publicado em: 2007
-
23. Produção de mapas de vulnerabilidade de solos e aqüíferos à contaminação por metais pesados para o estado de Minas Gerais / Production of soils and aquifers vulnerability maps to heavy metals contamination for the State of Minas Gerais, Brazil
The study of environmental vulnerability to chemicals nowadays is an important tool to make decisions refering to the use, occupation and management of soils and aquifers. In humid tropical systems where the weathered mantle is depth and well developed, the soil reactivity becomes more important than its permeability. In this way, it is being proposed in thi
Publicado em: 2007
-
24. Estimativa da recarga em uma unidade detrítica de uma microbacia do rio Piranga (MG) / Estimate of the recharge in a detrítica unit of a microbasin of the river Piranga (MG)
The present work has the aim of estimate the recharge for a phreatic granular aquifer located at Piranga river drainage basin, at Paula Cândido (MG) municipality area. Three techniques were used in order to achieve this recharge: ground-water inventory, water level variation and ground-water discharge measurement. The water level variation evaluation was ba
Publicado em: 2006