Abstract
The Brazilian northeast coast has tourism potential, and in the last decades its landscapes have been impacted by the expansion of tourism activity. The present research aimed to survey the change s that occurred in the evolution of soil cover in the municipality of Cajueiro da Praia, Piauí, in 2000 and 2015, using Remote Sensing and Geoprocessing techniques. The supervised classification of images LANDSAT 8 and LANDSAT 5, OLI/TIRS and TM imager instruments, respectively, in 2015 and 2000, using the Maxver method, processed in the Arcgis 10.2 software, made possible the production of the maps of use and coverage and the dynamics of land cover. The analysis identified nine classes of land use and land cover, which showed changes observed from the dynamics between the two dates. The analysis of these data, together with socioeconomic data from the census and surveys carried out by the Brazilian Institute of Geography and Statistics, showed a context of land use and land cover changes, with growth of urban areas, the increase of water bodies of the municipality. The change in the quantitative population of the municipality occurs perceptibly in its coastal area, the increase of water bodies is especially due to the growth of shrimp tanks. The issues of environmental legislation are factors that may explain the recovery of some vegetation areas, as their non-compliance explains the loss of others, such as mangrove vegetation, which was observed throughout the work.
Keywords:
Geotechnology; Geoenvironmental Systems; Mapping
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Source: Imagem Landsat 8. Org .: by the Authors, 2019.
Org.: by the Authors, 2019.
Org.: by the Authors, 2019.
Source: INMET (2020). Org.: by the Authors, 2020.
Source: LANDSAT Images (2000 and 2015). Org.: by the Authors, 2019.
= Expansion of urban area; 
= Preservation of vegetatio; 
= Expansion of water bodies; 
= Maintenance of exposed soil; 
= Preservation of the wetland area; 
= Expansion of the sandy cord.