Banca de DEFESA: SHAYENE BERNARDO DUTRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : SHAYENE BERNARDO DUTRA
DATE: 18/02/2021
TIME: 14:00
LOCAL: meet.google.com/ctb-igcu-jnn
TITLE:

THE RELATIONSHIP OF BURNED AREAS WITH THE FORESTRY REMANESCENTS SUPPRESSION IN SEMPRE- VIVAS NATIONAL PARK OF CERRADO BIOME - BRAZIL

KEY WORDS:

Burned Areas; Conservation Units; Land Use and Land Cover.

PAGES: 180
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Geografia Física
SPECIALTY: Geoecologia
SUMMARY:

In tropical regions, the biomass burning is one of the major impacts of land use change and intensification across the landscape. In Brazil, this practice has increased significantly, causing numerous impacts on the environment and society, ranging from the deterioration of local air quality to global climate change. Due to the demand for arable land and pasture areas, the Cerrado biome stands out, where the incidence of annual burnings is high and frequent due to its suppression by the expansion of agriculture in areas with natural vegetation and fires associated with natural phenomena as well as deforestation and agricultural activities. The practice of fire represents an obstacle in the preservation of this biome, especially in protected areas, mainly because it prevents vegetation recovery and increases greenhouse gas emissions in to the atmosphere.  Thus, the objective of this research is to analyze and estimate the spatio-temporal dynamics of the incidence of fires in the Sempre-Vivas of National Park – PNSV (MG) and its adjacent areas, inserted in the Cerrado domain. To understand the fire dynamics of these protected areas, the remote sensing were used as a tool to obtain the mapping of the burned areas. All available good quality images were downloaded from June to October, in the time period from 1985 to 2019, of the sensors Thematic Mapper (TM) and Operational Land Imager (OLI) onboard the Landsat 5 and 8 satellite, respectively, and from Linear Imaging Self Scanner III (LISS-III) sensor on board the Resourcesat-1 satellite for the year 2002 and 2012. The images were segmented in order to generate spectrally homogeneous polygons, allowing the classification of burned areas and then the manual editing is performed to improve the classification. The result of the occurrence of fires in the PNSV for the 10 km buffer shows that there was an increase of 14% over the 34-year period (1985-2019) and of 48% in these 17 years of establishment of this unit (2002-2019). Since the creation of NP in 2002, the years with the highest accumulation of burns were 2004 (2.53%), 2007 (2.23%), 2011 (2.47%), 2015 (2.40%) and 2019 (4,94%) and there is a spatial and temporal pattern of burn scars inside and around the protected area, composed by the Damping Zone. In addition, the burned areas were validated using fieldwork, where it was possible to verify the thematic accuracy and reliability of the mapping, the analysis of annual and monthly precipitation based on the values extracted from CHIRPS in the analyzed period, which showed that it is not only precipitation that should be considered the only factor of influence for the occurrence of fires in the region, as it only helps in the occurrence and proliferation of the burn and, finally, the analysis of the change in land use and coverage based on data from the MapBiomas project with the burned areas mapped, which showed that the main changes in the region of the park that converts its natural vegetation are the types: Savanica Formation (2,369.41 km²), Campestre Formation (1,108.87 km²), Pasture (502.63 km²) and Forest Formation (198.35 km²). Based on this, this study can assist in the elaboration of an action plan aimed at the insertion of the local community in the planning and management of the park, the recovery of burnt areas and the control of fires in these areas, being of great importance when assisting in the inspection, providing monitoring data and putting pressure on the entities responsible for the preservation of protected areas of ecosystems rich in biodiversity in the Cerrado biome.

BANKING MEMBERS:
Presidente - 007.170.909-65 - FRANCIELLE DA SILVA CARDOZO - UFSJ
Interno - 1375368 - LEONARDO CRISTIAN ROCHA
Interno - 2001758 - GABRIEL PEREIRA
Externo à Instituição - GUILHERME AUGUSTO VEROLA MATAVELI - INPE
Externa à Instituição - SIMONE NUNES FONSECA