Loading...
Publication
Avaliação crítica de mapas ambientais de poluição da água em marinas
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 613.92 KB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Este estudo aplica o modelo PSR (“Pressure-State-Response”) para avaliar e mapear o risco ambiental das marinas ao longo da costa de Portugal continental. Focámo-nos em 27 marinas, classificando-as e avaliando-as em termos de risco ambiental para a qualidade da água. A metodologia integra pressões ambientais, condições do estado e respostas sociais, pro-porcionando aos decisores informação espacial baseada em dados científi-cos. Construímos uma base de dados que abrange dados de navegação, operações portuárias, dragagens, poluição e uso do solo nas regiões adja-centes. Usando Sistemas de Informação Geográfica (SIG), mapeámos e avaliámos a suscetibilidade, valor ecológico e naturalidade de cada mari-na, considerando as estratégias de gestão locais para mitigar as pressões humanas. Os nossos resultados revelam que as marinas com maior risco ambiental estão concentradas na região do Algarve, onde as atividades de navegação contribuem significativamente para o risco. No entanto, as dis-crepâncias entre a classificação de risco e os resultados das análises de da-dos in-situ da qualidade da água destacam limitações na metodologia ba-seada no modelo PSR, sugerindo a necessidade de indicadores adicionais. Os mapas de risco resultantes servem como ferramentas valiosas para pri-orizar planos de intervenção para melhorar a qualidade da água e alcan-çar os objetivos de desenvolvimento sustentável.
This study applies the Pressure-State-Response (PSR) model to assess and map the environmental risk of marinas along the coast of mainland Portugal. We focused on 27 marinas, classifying and evaluating them in terms of their environmental risk to water quality. The methodology integrates environmental pressures, state conditions, and societal responses, providing decision-makers with spatial information based on scientific data. We built a comprehensive database encompassing navigation, port operations, dredging, oil pollution, and nearby land use. Using Geographic Information Systems (GIS) tools, we mapped and evaluated the susceptibility, ecological value, and naturalness of each marina, considering local management strategies to mitigate human pressures. Our results reveal that the marinas with the highest environmental risk are concentrated in the Algarve region, where navigation activities significantly contribute to the risk. However, discrepancies between the risk ranking and in-situ water quality measurements highlight limitations in the PSR-based methodology, suggesting the need for additional indicators. The resulting risk maps serve as valuable tools for prioritizing intervention plans to enhance water quality and achieve sustainable development goals.
This study applies the Pressure-State-Response (PSR) model to assess and map the environmental risk of marinas along the coast of mainland Portugal. We focused on 27 marinas, classifying and evaluating them in terms of their environmental risk to water quality. The methodology integrates environmental pressures, state conditions, and societal responses, providing decision-makers with spatial information based on scientific data. We built a comprehensive database encompassing navigation, port operations, dredging, oil pollution, and nearby land use. Using Geographic Information Systems (GIS) tools, we mapped and evaluated the susceptibility, ecological value, and naturalness of each marina, considering local management strategies to mitigate human pressures. Our results reveal that the marinas with the highest environmental risk are concentrated in the Algarve region, where navigation activities significantly contribute to the risk. However, discrepancies between the risk ranking and in-situ water quality measurements highlight limitations in the PSR-based methodology, suggesting the need for additional indicators. The resulting risk maps serve as valuable tools for prioritizing intervention plans to enhance water quality and achieve sustainable development goals.
Description
Keywords
Avaliação de Risco Ambiental Marinas Modelo PSR Qualidade da Água Sistemas de Informação Geográfica (SIG) Environmental Risk Assessment Pressure-State-Response (PSR) Model Water Quality Geographic Information Systems (GIS)
Pedagogical Context
Citation
Publisher
OIKOS - Associação de Defesa do Ambiente e do Património da Região de Leiria