Use of geotechnologies integrated to a Geographic Information System (GIS) in the environmental situation analysis of the Jabre/PB state park region
DOI:
https://doi.org/10.6008/CBPC2179-6858.2019.006.0013Keywords:
Geotechnology, Remote sensing, Land use and occupationAbstract
Population growth and unplanned anthropogenic activities have caused significant social and environmental losses worldwide, being a frequent theme in many Brazilian regions. The Jabre State Park is located in the Paraiban municipalities of Maturéia and Mãe D'água and has characteristic socioenvironmental factors, in addition to environmental elements common to the semiarid region. However, it is an area that requires special attention in the development of actions aimed at preserving and mitigate the numerous problems present. This study aims to identify the altimetric characteristics of the region through geotechnologies, using tools such as shapefile files and Digital Elevation Models (MDE), as well as analyzing the land use change in the municipalities of Maturéia and Mãe D'água over the last 30 years through Landsat 4-5 and Sentinel 2 satellite images. Methodological issues have been integrated into a Geographic Information System (GIS) environment supported by Navigation Satellite System (GNSS) data for more accurate identification of the environment elements. The results showed that the study area presents topographic elements that favor erosive processes, as well as events related to social vulnerability, and also the alteration of land use and occupation over the last 30 years. In addition, the results allowed the availability of environmental data that can be used as support in territorial planning and management. This study also demonstrated that methodological approaches based on the use of geotechnologies can support local management and reduce public spending on emergency situations.
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