Do sal ao solo: Transformações da paisagem na planície costeira da Lagoa de Araruama entre os anos de 1929 e 2017

Abstract

From the beginnings of its occupation the coastal plain of the Lagoon of Araruama suffered the transformations in its landscape, such as the trees of species that live in the region and an urban occupation. These transformations occurred with greater intensity from the 70's, and continue to the present day. In this way, it is proposed to analyze, from cartographic representations, how transformations occurred in the city during the last 88 years, being possible to discuss as main substitutions of uses, their unfoldings and future perspectives for a study area. In order to carry out the study, object - based image classification techniques (GEOBIA) were used for a classification of land use and cover, allowing for analyzes regarding the spatial and dynamic distribution of the region. The methodology used to investigate multitemporal consisted in the use of remote sensing and geoprocessing techniques, using historical cartographic materials, so that they could be identified as the main changes occurred in the years 1929, 1976 and 2017. The landscape transformations occurred in the areas of salinas, spanning its extension in 1929 (about 18.54 km² of saline), growth in 1976 (about 65.79 km² of saline) and more recently in 2017, its decline to detriment and new uses (about 61.45 km² of saline). The replacement of old saline areas with a new look may be highlighted by urban growth in recent decades, but there are others that have changed the landscape of the region.