Geoecologia das paisagens do cerrado: análise das relações socioambientais na bacia hidrográfica do rio Tocantinzinho – GO
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2019-06-28
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Universidade Federal de Goiás
Resumo
The growing process of conversion of native vegetation to anthropic uses observed in the north and
northeast of Goiás has represented increased pressure on natural resources and ecosystem
processes. The Tocantinzinho River Basin which covers important priority areas for conservation
of the Cerrado, is part of this scenario. In this sense, the present research had as objective to
analyze the effects of the relation society and nature in the watershed landscape, between 1985 and
2016. The structural focus was highlighted in research by allowing, through analysis of the
composition and configuration, the recognition of interactions between components of landscapes.
The analysis of structures with physiognomic and functional similarities, as a function of the
interaction between the physical and natural components, was analyzed from the execution of the
organization and inventory, analysis and diagnosis steps that allowed the cartographic
compartmentation of 20 geoecological units that were grouped according to geomorphological
characteristics. The anthropogenic interference was analyzed through changes in the landscape
structure, composed of geo-ecosystemic units, in the years 1985, 1995, 2005 and 2016. For that,
satellite images (LANDSAT) of these years were classified and indexes descriptors of the
landscape were applied to coverage and land use maps, allowing a spatial comparison in historical
succession for the basin area and, later, for the area of the groups of the geoecological units. The
results indicate that the replacement of native vegetation patches by anthropic patches has mainly
affected the grassland formation, between 2005 and 2016, in the geoecological units with
characteristics of the physical environment preferential to agribusiness. The associated analysis of
the geoecological and geo-ecosystemic units allowed identifying important land use patterns to
define potential areas for the application of strategies for the connectivity of native vegetation
patches and also for economic development.
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OLIVEIRA, Rosane Borges de. Geoecologia das paisagens do cerrado: análise das relações socioambientais na bacia hidrográfica do rio Tocantinzinho – GO. 2019. 144 f. Dissertação (Mestrado em Geografia) - Universidade Federal de Goiás, Goiânia, 2019.