Estudo da vulnerabilidade à erosão costeira nas praias urbanas de Maceió – AL

Abstract

Coastal environments are characterized by the triple interaction between the ocean, the continent and climate, as such they physically present a high dynamic in terms of their modeling processes, at the same time they also appear to be the most densely occupied regions on the planet, an occupation that, invariably causes negative environmental impacts to these environments. .The present study had as objective the preliminary classification of the coastal vulnerability of the urban beaches of Maceió. For this, a Coastal Vulnerability Index calculation was used, obtained through the simple arithmetic average of three groups of variables: NDVI, coastline variation and check list, identifying geoindicators present in the landscape. The results show that 43% of the urban beaches have a high level of vulnerability, with prominence on the beaches in the southern part of the city and on Pajuçara beach, regions with a history of erosion processes that damage the waterfront and buildings. The methodological procedures made it possible to achieve the proposed objectives . Given the procedural diversity, forms of appropriation and use of land and new structures to contain marine erosion, in implementation, new studies and methodologies must be applied with a view to monitoring the vulnerability conditions of the beaches in the medium and long term.