Uso de geoindicadores na identificação de erosão costeira no município de Baía da Traição-PB

Abstract

The coastal erosion process is one of the main problems affecting the coastal zone worldwide. In Brazil, this is no different. In view of this reality, the present work made use of eleven visual geoindicators, which were adapted to the study area. The use of these indicators has become an important tool in the identification of erosive processes and in the classification of the intensity with which they occur, being worked on by several authors, Souza et al (2005); Souza (2009); Martins (2015); Martins et al (2016); Reis et al (2019). This study chose to divide the geoindicators into four classes of intensity, being null (without geoindicators), low (geoindicators with reduced visual impact on the landscape), moderate (significantly altering the landscape) and high (significantly altering the landscape and / or presenting accentuated anthropic interference). The study area comprises approximately 15 km of coastline in the municipality of Baía da TraiçãoPB, incorporating a strip of seven beaches, Sol and Trincheiras, Ponta das Trincheiras, Baía da Traição, Giz Branco, Tambá, Cardosas and Barra de Camaratuba. Along this extension, fourteen points with an approximate distance of 1 km were delimited. About 78% of these beaches showed some indicator of coastal erosion, and in 64% of the extension, the presence of high intensity geoindicators was observed. With this, the data generated in this research make it possible to improve coastal management plans, through adequate monitoring, according to the scope and intensity of the affected area, since the methodology proved to be satisfactory to achieve the proposed objectives.