Variação vertical da faixa de praia da Caponga e Águas Belas e riscos associados

Abstract

This work aims to study the Praia da Caponga and Águas Belas, located in the coastal stretch west coast of Cascavel, with approximately 4.5 km long where the anthropogenic actions were important changes to the coastal landscape. The aim of this study is to compare the erosive processes in urbanized and non-urbanized on Praia da Caponga and Águas Belas. On the metodology the literature survey was realized related to coastal processes and coastal dynamics, sediment analysis, erosion and wind transport in Caponga coastal. The data collection through specific methods and processing of data and samples subsequently performed in the laboratory. Six points were established in the study area in urbanized and non-urbanized areas to measure the difference in these regions of coastal erosion process. The hydrodynamics study results showed that in the 2011 sea waves were prevalent throughout the year of work. The average height in the surf zone ranged from 0.9 to 1.5m, and that in the year 2012, the general characteristics of the waves were similar to those observed in 2011. The profiles showed that in non-urbanized areas there is a greater extent and slope of the beach than in urban areas because they do not receive influence of human occupation. For urbanized areas, there is a smaller beach length and the beach slope due to the influence of human occupation. It can be concluded from the results that the urbanized areas which suffer from human activities significantly altered coastal processes and its landscape, intensifying the process of erosion. Not urbanized area had a milder erosion process due to the existence of structures that reduce recoil process of the beautiful coast and dunes and low human occupation that allows the exchange and sediment transferences.