Coastal erosion in the municipality of Barra de Santo Antônio, north coast of Alagoas

Abstract

Coastal environments configure very dynamic mosaics in constant transformation, with a quite tenuous equilibrium when it comes to its modifications. In general, post-beach occupation and the removal of its vegetation causes changes in the morphodynamics. Processes that were identified in the municipality of Barra de Santo Antonio, in the North Coast of Alagoas. To analyze these processes were used geoindicators, identified in the field, which allowed the characterization and sectorization of the mapped processes. Eight sectors were delimited, classified according to the erosive tendency and/or intensity of the processes that has already started. The methodology is showed promising, providing data that could be refined in future studies. Thus, the present study aimed at providing data that can assist managers and competent bodies in decision making, as well as draw attention to this theme in the Municipality, stimulating actions and discussions on territorial planning in the land occupation and use process.

Keywords: coastline, Barra de Santo Antônio, coastal dynamics, beach morphodynamics.