Urbanização de praias: um diagnóstico do litoral paulista
Data
2023-06-29
Tipo
Trabalho de conclusão de curso
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Resumo
A região costeira sempre foi uma localidade atrativa para a humanidade, apresentando grandes concentrações populacionais por todo o globo. Isso fez com que a linha de costa fosse moldada, não apenas por eventos naturais, mas também por atividades antrópicas, frequentes no ambiente urbano. Dentro de um cenário de mudanças climáticas, é importante a realização de diagnósticos, para buscas estratégias de mitigação dos impactos gerados por potenciais eventos climáticos extremos, como o aumento do nível do mar. Este estudo teve como objetivo diagnosticar o estado de ocupação da linha de costa no litoral paulista para avaliar a potencial fragilidade das regiões litorâneas perante as mudanças climáticas, dividindo a região em três partes Litoral Sul, Litoral Centro e Litoral Norte. Foram selecionadas aleatoriamente 9 praias de cada região, e estas praias foram medidas em sua extensão total, extensão com intervenção urbana e extensão com ambiente não urbanizado, que passaram por análises de variância. As análises revelaram dois cenários de urbanização ao longo da costa do estado, com praias no Litoral Centro e no Litoral Norte altamente urbanizadas, enquanto as praias no Litoral Sul estão predominantemente cercadas por ambientes naturais. Nesse contexto, o Litoral Norte e Centro apresentam maior fragilidade em relação às mudanças climáticas devido à intensa urbanização em sua costa, que cria uma barreira física para o recuo da faixa de areia, ameaçando a integridade das praias e da infraestrutura urbana adjacente a elas.
The coastal region has always been an attractive location for humanity, drawing significant population concentrations worldwide. That fact has shaped the coastline not only through natural events but also through human activities, mainly in the urban environment. In the context of climate change, it is important to conduct assessments of urban intervention to aid in the development of mitigation initiatives aimed at addressing the potential impacts of extreme climate events, such as sea level rise. The objective of this study was to assess the occupancy status of the coastline in São Paulo state and evaluate the potential vulnerability of the region to climate change. The coastline was divided into three regions: South Coast, Central Coast, and North Coast. Nine beaches were randomly selected from each region, and these beaches had their total extent, urban extent, and natural extent measured, which underwent variance analysis. The analysis revealed two scenarios of urbanization in the state, with the beaches of the North and Central Coast being the most urbanized, while the beaches of the South Coast were predominantly surrounded by natural environments. In this context, the North Coast and Central Coast exhibited greater vulnerability to climate change compared to the South Coast. This is attributed to the significant urban development acting as a physical barrier to beach retreat, posing a threat to the integrity of the beaches and the adjacent urban infrastructure.
The coastal region has always been an attractive location for humanity, drawing significant population concentrations worldwide. That fact has shaped the coastline not only through natural events but also through human activities, mainly in the urban environment. In the context of climate change, it is important to conduct assessments of urban intervention to aid in the development of mitigation initiatives aimed at addressing the potential impacts of extreme climate events, such as sea level rise. The objective of this study was to assess the occupancy status of the coastline in São Paulo state and evaluate the potential vulnerability of the region to climate change. The coastline was divided into three regions: South Coast, Central Coast, and North Coast. Nine beaches were randomly selected from each region, and these beaches had their total extent, urban extent, and natural extent measured, which underwent variance analysis. The analysis revealed two scenarios of urbanization in the state, with the beaches of the North and Central Coast being the most urbanized, while the beaches of the South Coast were predominantly surrounded by natural environments. In this context, the North Coast and Central Coast exhibited greater vulnerability to climate change compared to the South Coast. This is attributed to the significant urban development acting as a physical barrier to beach retreat, posing a threat to the integrity of the beaches and the adjacent urban infrastructure.
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Citação
SANTOS, Matheus Monteiro dos. Urbanização de praias: um diagnóstico do litoral paulista. 2023. 29 f. Trabalho de conclusão de curso (Graduação em Engenharia Ambiental) - Instituto do Mar, Universidade Federal de São Paulo, Santos, 2023.