Banca de DEFESA: LUIZ EDUARDO DOS SANTOS COSTA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUIZ EDUARDO DOS SANTOS COSTA
DATE: 05/07/2021
TIME: 14:00
LOCAL: VIDEOCONFERÊNCIA
TITLE:

EVALUATION OF THE DESERTIFICATION PROCESS IN THE MUNICIPALITIES OF OURO BRANCO AND SENADOR RUI PALMEIRA, IN THE SEMI-ARIDO ALAGOANO, FROM REMOTE SENSING.

 

KEY WORDS:

Environmental degradation, Desertification, Alagoas semiarid, Remote sensing.

PAGES: 80
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Meteorologia
SUMMARY:

Most of the problems related to environmental degradation in the semi-arid region are
due to the region's own characteristics and the wrong way in which the land is used,
disrespecting its favorable limits for biomass production, and thus making it vulnerable.
Thus, due to the importance of performing a verification of the semi-arid biome of
Alagoas in the municipalities of Ouro Branco and Senador Rui Palmeira, to get a sense
of the magnitude of Caatinga degradation due to the environment itself and in
conjunction with anthropogenic actions. In this work, remote sensing techniques were
used for the identification, evaluation and classification of degraded areas susceptible
to desertification. The present work aims to identify areas susceptible to desertification
in the municipalities Ouro Branco - AL and Senador Rui Palmeira - AL, in the period
from 2007 to 2019 by the availability of data from the main satellite used in this work,
in order to evaluate and classify degradation levels through remote sensing. The

methodology used the products of FVC-MSG, precipitation-CHIRPS, soil moisture-
SMOS use and soil cover CCI-LC. The products of precipitation, FVC and soil moisture

were the interannual averages, generated through monthly averages, and the product
of use and land cover was the data for the reference year 2018. Each product was
used in one or more stages, to identify, assess and classify degraded areas susceptible
to desertification in the analyzed municipalities. The results obtained during the study
show that the regions with degraded areas have FVC values between 0.0 and 0.4 and
average annual precipitation values between 30 mm and 40 mm. It was also possible
to see that the response of the product of soil moisture can have different behaviors,
according to the precipitation regime or the soil characteristics. The product of use and
land cover, made it possible to see that the soils of the studied region underwent
changes in their soil types, where the main changes were: from natural vegetation to
cultivated soil or agricultural soil. However, I conclude that the methodology adopted
in the work was valid, because through the method used, it was possible to identify,
evaluate and classify the areas, with different levels of degradation.

BANKING MEMBERS:
Externa à Instituição - CATARINA DE OLIVEIRA BURITI - UFCG
Presidente - 2548280 - HUMBERTO ALVES BARBOSA
Interna - 1653612 - MARIA LUCIENE DIAS DE MELO