PEREIRA, J. D. A.; http://lattes.cnpq.br/0794148901792036; PEREIRA, José Diogenes Alves.
Resumen:
The activities carried out by man are capable of transforming the landscape, and are
driven by development models that are often unsustainable and that favor the
intensification of deforested areas. However, not only human practices such as agriculture
have this effect of alteration, the climate and its variations with climatic events, such as
droughts, are also capable of conditioning the variability of vegetation. Therefore, the
present study aims to understand and investigate the behavior that the Caatinga Biome
had by microregion of the State of Paraíba, investigating the environmental conditions
and the variability over the years. To this end, Ward's grouping method and Mann
Kendall's statistical tests, which point out the trend, and Pettitt's, which characterizes
possible homogeneities, were used, applied to the time series comprising data on
savannah formation from 1985 to 2020. In continuity data from agricultural production
of crops in the state in the period from 1990 to 2020 were used, characterizing the areas
with suggestive productions, as well as climatological data that indicate the climatic
variability of Paraíba. The results, in turn, showed that there was a reduction in Caatinga
areas in several micro regions of Paraíba, in addition to the fact that many of the areas
have a tendency to reduce, and in general, the climate and agricultural production in the
state, possibly, were agents that contributed to the decreases seen in the State.
