Banca de DEFESA: ISLÂNIA DOS SANTOS NUNES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ISLÂNIA DOS SANTOS NUNES
DATA : 12/09/2023
HORA: 13:00
LOCAL: Videoconferência
TÍTULO:

ANALYSIS OF THE TEMPORAL DYNAMICS OF PLANT COVER IN THE UMARIZAL MICRO-REGION BASED ON REMOTE SENSING – 2000 - 2022.

PALAVRAS-CHAVES:

Caatinga Vegetation, SAVI, RVI, IAF, Land Cover.

PÁGINAS: 50
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The Caatinga is an exclusively Brazilian biome that basically covers the entire Northeast of the country. In recent years, this biome has undergone many environmental changes, especially with regard to its vegetation cover and soil use and occupation. As a result, the study of vegetation dynamics and knowledge of its different types of use has been widely discussed. Aiming at this, remote sensing, together with vegetation indices, proved to be a valuable tool for understanding the vegetation cover and also for analyzing use and occupation. The present work has the general objective of analyzing the temporal and spatial dynamics of the vegetation cover of the Umarizal microregion, as well as the knowledge of the main types of use and occupation. The methodological procedures used were: satellite images from the Landsat series, specifically Landsat 5, Landsat 8 and Landsat 9, both for the dry period and for the rainy period of the years 2000, 2007, 2014, 2017 and 2022. of vegetation, the following indices were used: SAVI. The QGIS Software, version 3.28.3, was used for the preparation of vegetation cover maps, for the study of the types of Land Use and Occupation, data were obtained from a MapBioma 7.1 website. With this site it was possible to obtain data on the use and occupation of the years studied. After the analyses, it can be seen that the Savi values were higher in the rainy season, the year 2017 stood out for the low photosynthetic activity in both periods, due to the low levels of precipitation presented in the year in all municipalities. Regarding use and occupation, it was highlighted that in the micro-region the main types of use relate to forest formation (savannah formation), composed of arboreal-shrub vegetation formation of deciduous forest followed by agriculture and livestock, formed mainly by temporary crops.

MEMBROS DA BANCA:
Externa à Instituição - DÉBORA NOGUEIRA LOPES - UFG
Presidente - 4253 - ALFREDO MARCELO GRIGIO
Externo à Instituição - GLEYDSON DE FREITAS SILVA - UFERSA