Análise da vulnerabilidade natural da paisagem em relação aos diferentes níveis de ocupação da bacia hidrográfica do Rio Vermelho, estado de Goiás
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Data
2014-08
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Resumo
The Rio Vermelho watershed, located in the Goiás State, shows a great geodiversity, with terrains ranging
from the Arquean to the Holocene, in addition to a proeminent tectonic record. Likewise, throughout its
occupation history, it has been impacted by a variety of surface and underground activities, which resulted in
biodiversity impovereshment, as well as physical modifications, particularly progressive erosion processes
and sediment accumulation, as a function of the dynamic incoming and outcoming of matter and energy
from the natural system. In this work, based on the elaboration and analysis of an entropy map for the entire
basin area (~ 11,000 km2), it was possible to identify areas more susceptible to morphogenetic processes and, therefore, more vulnerable to land use and occupation. As an example of such areas, are those near
the basin delta, where entropy values are compatible with the diversity of land uses and interventions over
the complex fluvial system around the main Rio Vermelho channel. In spite the need of further analysis, at
more detailed scales, our results clearly demonstrate the potential of the landscape entropy as an important
tool for the identification of areas with more potential energy available for the geomorphological work and,
therefore, more vulnerable to occupation (i.e. subject to floods and landslides).
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Entropia do relevo, Bioma cerrado, Vulnerabilidade da Paisagem, Bacia Hidrográfica, Landscape entropy, Cerrado biome, Landscape vulnerability, Watershed
Citação
VIEIRA, Pedro Alves; FERREIRA, Nilson Clementino; FERREIRA, Laerte Guimarães. Análise da vulnerabilidade natural da paisagem em relação aos diferentes níveis de ocupação da bacia hidrográfica do Rio Vermelho, estado de Goiás. Sociedade & Natureza, Uberlândia, v. 26, n. 2, p. 385-400, maio/ ago. 2014.