Fragmentação da cobertura vegetal e estado das áreas de preservação permanente de canais de drenagem no município de Mineiros, estado de Goiás
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Data
2015-12
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Resumo
The significant occupation of the Cerrado in the last four decades has brought many
impacts to the biome, and the landscape fragmentation is seen as one of the main
contributors to the loss of biodiversity. Several studies in the Upper River Araguaia
Basin, adopting medium resolution satellite images have been performed and found
different impacts such as erosion, siltation and fragmentation, including the areas
of permanent preservation. Such impacts were associated with the implementation
of developmental public policies, especially Polocentro, which, among other actions,
incorporated the Cerrado to the national productive system from the decade of
1970 onwards. In this context, the aim of this study was to identify and characterize
the typology of remnant Cerrado vegetation in the southern portion of the Upper
Araguaia River Basin in the municipal Mineiros area (GO), emphasizing the
state of fragmentation and conservation of Permanent Preserved Areas (PPAs),
associated with drainage channels, with high resolution images. The results showed
that the area already holds the sugarcane monoculture as its main activity. However,
regarding the remnant that was at odds with the old Forest Code, it is currently in
accordance with current legislation (Law 12.651/12). The mapping and analysis at
detail did not corroborate the pattern of high fragmentation diagnosed previously
in medium resolution. Nevertheless, the PPAs are threatened by intensive use of
their surroundings, thus requiring conservation mechanisms.
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Palavras-chave
Áreas de preservação permanente, Alta bacia do rio Araguaia, Fragmentação da paisagem, RapidEye, Permanent preserved areas, Upper Araguaia River basin, Landscape fragmentation
Citação
PONCIANO, Tássia Andrielle; FARIA, Karla Maria; SIQUEIRA, Mariana Nascimento; CASTRO, Selma Simões de. Fragmentação da cobertura vegetal e estado das áreas de preservação permanente de canais de drenagem no município de Mineiros, estado de Goiás. Ambiência, Guarapuava , v. 11, n. 3, p. 545-561, set./dez. 2015.