Abstract
Among the many characteristics that the Brazilian territory possesses, one precisely excel: the mentioned country hosts the second biggest forest resource of the planet, corresponding for approximately 10% of the total amount of global forest resources. In that scenario, the Seasonally Dry Tropical Forests (SDTF) perform the second less expressive forest type in Brazil, being situated mostly in non-forested biomes, such as Savannas and Scrublands. Thus, its conservation must rely on its correct identification, which becomes difficult because the SDTF areas are generally classified as other vegetation types. Therefore, the present study aimed to perform the land cover-land use monitoring for the years of 2007 and 2016 of the continuous area North of Minas Gerais - South Piauí, with the purpose of evaluating the current situation of Brazilian SDTFs and assessing the main drivers that affect its deforestation and natural regeneration. As a result, the study verified that the significant increase in crop areas and spatial mobility of parturelands contributed decisively for the changes presented by vegetation formations. HOWEVER, such drivers played differentiated roles in losses/gains. Especially, it was concluded that the changes in which deciduous forests have undergone were explained particularly by pasture. The other types of vegetation were also impacted by this class, but with a more incisive participation of the crops. Key-words: Mapping, Deciduous Forests, Remote Sensing, GIS.
Highlights
The United Nations Food and Agriculture Organization’s assessment of global forest resources FAO / UN (2010) points to a decrease in the global yearly deforestation rate when comparing the decades of 1990-2000 and 2000-2010
As the cartographic products used to delimit the vegetation formations of the Atlantic Forest are on a scale of 1: 5,000,000 and imbricated with generalizations, the mesoregional geographical unit was the spatial criterion used as a parameter to delimit the Study Area (SA) as from this perspective, any seasonally dry tropical forests (SDTF) area not covered by the IBGE mapping scale could be identified by the mapping conducted in this research
Following the objectives established at the beginning of this work, the results discussed below aim to evaluate the dynamics of Land Use and Coverage for the Study Area for 2007 and 2016, with the main goal of focusing on the deforestation and regeneration processes of Seasonally Dry Tropical Forest areas to understand the drivers of these changes
Summary
The United Nations Food and Agriculture Organization’s assessment of global forest resources FAO / UN (2010) points to a decrease in the global yearly deforestation rate when comparing the decades of 1990-2000 and 2000-2010. It is noteworthy that according to the report, of the estimated four billion hectares of forest on the planet, about 67% are concentrated in just ten countries, seven of which have areas greater than 100 million hectares This information is pertinent as the three countries with the highest deforestation rates in the decades in question are on the list of the ten most forest-rich territories. This is the case in Brazil, which ranks second among the countries with the largest territorial area of forest and has the highest recorded deforestation figures on the planet
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