Determinação da vulnerabilidade e da zona não edificante para as praias de Tabuba e Cumbuco município de Caucaia, ceará, NE do Brasil.

Abstract

The determination ofnon-edifying areasand the vulnerability ofthe coast zoneare preponderant factors to its environment preservation, implies to limit anthropic activities that promote negative impacts and to preserve the included areas between the marine and the continent. The calculus of retrogradationmade from Bruun Law on the beaches of Tabuba and Cumbuco, city of Caucaia, has permitted the establishment ofa non-edifying zone, based on prediction of sea increasing rates and regional parameters of the beaches. The beaches covers aboutnine km of extension, where the most notable are the growth of occupation and urbanization, influenced by leisure and tourism activities, and the sea level rise. The consequences observed are the beginning of coastal erosion and the occupation of areas really close to the sea. With the results obtained, it’s noticeable the high vulnerability of the beaches and its need for expanding thenon-edifyingzone. Moreover, the beaches would only be protected within the optimistic scenario, and in the others scenario, the calculus for thenon-edifying zone indicates risk and vulnerability of the studied beaches.Key-Words: