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Abstract(s)
Sendo o mais abundante, a água é também o recurso natural mais importante existente no planeta Terra. Mais particularmente da água subterrânea depende a sobrevivência do ser humano, bem como toda uma economia mundial fazendo trabalhar o setor industrial e o setor agrícola. Assim, dada a escassez das águas subterrâneas é necessária uma gestão eficaz deste recurso hídrico.
Por vezes, muitas das captações de água subterrânea encontram-se em meios de difícil exploração ou dispõem de recursos insuficientes face à resposta necessária das várias populações.
Surgem assim as barragens, que sendo captações superficiais, podem armazenar água em grandes quantidades para abastecer as populações. O espelho de água criado por uma barragem contribui para as infiltrações da água no sub-solo granítico da região, recarregando os aquíferos.
A hidrogeologia, com todas as ferramentas que tem ao seu dispor, permite caracterizar de uma forma bastante fiável, as etapas e os processos associados à circulação das águas que se infiltram no sub-solo, bem como ao seu armazenamento e à sua qualidade.
A presente dissertação surge no contexto de analisar as recargas de aquíferos que a potencial albufeira da Barragem da Ribeira das Cortes vai proporcionar, potenciando os furos, minas e nascentes que se encontram a jusante, mais propriamente nas localidades Bouça e Cortes do Meio, no Concelho da Covilhã.
Deste modo, no Capítulo 1, Introdução, apresentam-se o enquadramento do tema e os objetivos da presente dissertação. No Capítulo 2, Metodologia, apresentam-se a metodologia do trabalho e a maneira como este foi realizado, discriminando ainda alguns conceitos hidrogeológicos essenciais para apoio da interpretação dos resultados a obter. No Capítulo 3, Estudos Anteriores, apresenta-se de forma breve os principais aspetos de águas subterrâneas, nomeadamente os sistemas de aquíferos em Portugal, bem como os estudos sobre a temática, realizados na região em estudo. No Capítulo 4, Caso de Estudo – Ribeira das Cortes, dedica-se com algum detalhe à caracterização da região, nomeadamente nos aspetos físicos, geomorfológicos, geológicos, hidrogeológicos e da qualidade da água, bem como é feita uma comparação final das reservas de água sem e com a implementação da Barragem da Ribeira das Cortes. Finalmente, no Capítulo 5, Conclusões, sintetizam-se os aspetos mais relevantes em termos conclusivos.
Being the most abundant, water is also the most important natural resource that exists on planet Earth. The survival of Human beings as well as global economy depends more particularly on groundwater for the functioning of industry and agriculture. Therefore, given the shortage of these groundwaters, a strong and effective management of this hydric resource, is necessary. Sometimes, many of these water catchments are very hard to explore or else they have insufficient resources given the necessity of the populations. It is in this context that dams arise, superficial water catchments that can store water in huge amounts so as to supply the populations. The water mirror created by a dam facilitates water infiltrations in the granitic sub-soil of the region, thereby recharging the aquifers. Hydrogeology with all its tools, allows for a very reliable characterization of the phases and processes associated with the circulation of waters that infiltrate in the sub-soil, as well as their storage and quality. The present dissertation arises in the context of analyzing the recharging of aquifers that Project of Ribeira das Cortes Dam will provide, boosting boreholes, galleries and springs that are downstream, namely in the locations of Bouça and Cortes do Meio, in the County of Covilhã, resorting to the hydric resources available nowadays. Thus, in Chapter 1, Introduction the theme framework and the goals of this dissertation are presented. In Chapter 2, Methodology, the work methodology and the way the whole paper/work was done is presented. Chapter 3, Previous Studies, gives a brief presentation of the Portuguese aquifer systems as well as theme studies carried out in the studied region. In Chapter 4, Case of Study – Ribeira das Cortes, gives a detailed characterization of the region, namely in of physical, geological, hydrological and water quality terms. In this chapter is also made the comparison between the reserves with the present situation versus after the construction of Ribebira das Cortes Dam. Finally, in Chapter 5, Conclusions, the most relevant features are summarized in conclusive terms.
Being the most abundant, water is also the most important natural resource that exists on planet Earth. The survival of Human beings as well as global economy depends more particularly on groundwater for the functioning of industry and agriculture. Therefore, given the shortage of these groundwaters, a strong and effective management of this hydric resource, is necessary. Sometimes, many of these water catchments are very hard to explore or else they have insufficient resources given the necessity of the populations. It is in this context that dams arise, superficial water catchments that can store water in huge amounts so as to supply the populations. The water mirror created by a dam facilitates water infiltrations in the granitic sub-soil of the region, thereby recharging the aquifers. Hydrogeology with all its tools, allows for a very reliable characterization of the phases and processes associated with the circulation of waters that infiltrate in the sub-soil, as well as their storage and quality. The present dissertation arises in the context of analyzing the recharging of aquifers that Project of Ribeira das Cortes Dam will provide, boosting boreholes, galleries and springs that are downstream, namely in the locations of Bouça and Cortes do Meio, in the County of Covilhã, resorting to the hydric resources available nowadays. Thus, in Chapter 1, Introduction the theme framework and the goals of this dissertation are presented. In Chapter 2, Methodology, the work methodology and the way the whole paper/work was done is presented. Chapter 3, Previous Studies, gives a brief presentation of the Portuguese aquifer systems as well as theme studies carried out in the studied region. In Chapter 4, Case of Study – Ribeira das Cortes, gives a detailed characterization of the region, namely in of physical, geological, hydrological and water quality terms. In this chapter is also made the comparison between the reserves with the present situation versus after the construction of Ribebira das Cortes Dam. Finally, in Chapter 5, Conclusions, the most relevant features are summarized in conclusive terms.
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Keywords
Água Subterrânea Barragens Covilhã Qualidade da Água Ribeira das Cortes