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Advisor(s)
Abstract(s)
O aproveitamento dos recursos hídricos subterrâneos em Portugal e outros países, tem
vindo a crescer e a sua tendência é que continue a crescer nos próximos anos. Este
desenvolvimento acompanha não só o crescimento demográfico, mas também a expansão
económica.
A riqueza das águas minerais e de nascente em Portugal, exibe um elevado valor patrimonial
e ecológico. O incontestável valor acrescentado que possuem, permitiu que desde 1928, a
legislação portuguesa estabeleça perímetros de protecção às captações. A delimitação
desses perímetros, integra uma ferramenta de gestão do recurso, tendo em vista a sua
preservação quantitativa, qualitativa e ecológica.
O estudo da vulnerabilidade dos recursos hídricos subterrâneos é fundamental, uma vez
que permite analisar quais os factores que poderão comprometer a qualidade da água e os
riscos pelos quais pode ser poluída. Possibilita ainda uma actuação competente ao nível da
gestão do aquífero, auxiliando na tomada de políticas de controlo e protecção, assegurando
sempre o uso sustentável do recurso.
Os mapas de vulnerabilidade, serão calculados com recurso aos SIG, que para Mejuto et al.
(1999), são instrumentos de extrema importância no estudo do risco de contaminação das
águas subterrâneas, encontrando-se em constante ascensão. Recorreu-se aos SIG, uma vez
que permitem a recolha de dados espaciais e ao mesmo tempo a realização de
processamento de dados como a georreferenciação, integração, agregação e análise espacial.
Com o presente trabalho, onde se irá aplicar o método DRASTIC, pretende-se que este
estudo permita o auxílio na tomada de decisão ao nível do planeamento e gestão das águas
subterrâneas, de modo a garantir a protecção e gestão sustentável.
Por último, a presente dissertação pretendeu encontrar respostas para um problema que se
vem colocando nos últimos anos relativamente à validação do perímetro de protecção da
captação de águas subterrâneas do Centro de férias do INATEL – Quinta da Torre, em
Entre-os-Rios (Furo de Barbeitos) e sobre a eventual contaminação das águas.
The use of underground water resources in Portugal and other countries has been increasing and its trend is to continue to raise in the following years. This growth is directly related with demographic growth and economic expansion. The richness of mineral and spring waters in Portugal, represents a high patrimonial and ecological value. Due to its value, the Portuguese legislation as established perimeters of protection of the captations since 1928. The resource management intend quantitative, qualitative, and ecological preservation. The study of the underground water resources vulnerability is essential, since it allows the recognition of factors that may compromise water quality and the risks of being polluted. This, also enables competent action in terms of underground water management, helping in the creation of control and protection policies that ensure the sustainable use of the resource. The vulnerability maps will be calculated using the GIS, which according to Mejuto et al. (1999), are extremely important instruments in the study of the risk of contamination of groundwater and are constantly rising. GIS was used, since it allows the gathering of spatial data and at the same time gives permission to process different data such as georeferencing, integration, combination, and spatial analysis. With the present work, where the DRASTIC method will be applied, it is intended that this study assists in decision-making of planning and management of groundwater, to guarantee its protection and sustainability. The main goal of this dissertation is to find answers to a problem that has been argued for several years, which is related with the validation of the groundwater protection perimeter of the INATEL - Quinta da Torre, in Entre-os-Rios (Barbeitos Borehole) and the possible water contamination.
The use of underground water resources in Portugal and other countries has been increasing and its trend is to continue to raise in the following years. This growth is directly related with demographic growth and economic expansion. The richness of mineral and spring waters in Portugal, represents a high patrimonial and ecological value. Due to its value, the Portuguese legislation as established perimeters of protection of the captations since 1928. The resource management intend quantitative, qualitative, and ecological preservation. The study of the underground water resources vulnerability is essential, since it allows the recognition of factors that may compromise water quality and the risks of being polluted. This, also enables competent action in terms of underground water management, helping in the creation of control and protection policies that ensure the sustainable use of the resource. The vulnerability maps will be calculated using the GIS, which according to Mejuto et al. (1999), are extremely important instruments in the study of the risk of contamination of groundwater and are constantly rising. GIS was used, since it allows the gathering of spatial data and at the same time gives permission to process different data such as georeferencing, integration, combination, and spatial analysis. With the present work, where the DRASTIC method will be applied, it is intended that this study assists in decision-making of planning and management of groundwater, to guarantee its protection and sustainability. The main goal of this dissertation is to find answers to a problem that has been argued for several years, which is related with the validation of the groundwater protection perimeter of the INATEL - Quinta da Torre, in Entre-os-Rios (Barbeitos Borehole) and the possible water contamination.
Description
Keywords
Água Subterrânea Drastic Perímetros de Protecção Sistemas de Informação Geográfica Vulnerabilidade à Poluição