Analysis of the drought impacts in the city of Sousa/PB
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.001.0028Keywords:
Drought, Geoprocessing, Land use and occupationAbstract
The droughts facing the Northeast have been monitored over the years in order to understand and plan to deal with the eventualities that the climate provides. Therefore, the present study aims to determine and analyze the impacts caused by drought, from 2012 to 2017, using a subsequent period of time (2018 and 2019) with the year 2008 as a reference due to its high rainy characteristic, in the municipality of Sousa-PB. The data used were provided by the USGS and IBGE and were processed using the free software Qgis 2.14. Multitemporal spatialization of the study area was generated by the use of land occupation and the remote sensing indexes (NDVI, LST and WSVI) in the reference year and in the post-dry season to visualize and characterize the changes that occurred in the municipality of Sousa. It was concluded that the drought modified the territory and that in a direct way it impacted the environment, either by reducing the reservoirs caused by water scarcity or by the occurrence of forest fire favored by dry vegetation, low water condition and soil moisture. This resonated with municipal agricultural productivity and, therefore, in the social sphere, resulting from impacts on the local economy, since farmers had limited production, the urban area also suffered impacts, as it was submitted to water rationing that directly affected the inhabitants that live in the municipality.
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