Expansão da cana-de-açúcar na microrregião do Vale do Rio dos Bois – Goiás
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Data
2014-08-07
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Universidade Federal de Goiás
Resumo
In Brazil the intensification of international discussions in the 21st century on the production
of clean and renewable energy emphasizes the expansion of sugar cane, raw material for the
production of biofuel ethanol, considered to be less polluting. The recent expansion of sugar
cane in Brazil has as target area the Center - South of the Cerrado Biome, mainly in land
before occupied by grain, cotton and pastures and comes inducing accelerated change of land
use, worrying about, among other aspects, by the environmental impacts related. Since the
late 1990, especially after 2000, the cane has been expanding rapidly on areas before
cultivated areas with other cultures, especially grains, in addition to pastures and increasing
the number of plants. The mesoregion south of the state of Goiás, preferred for this rapid
expansion of current, especially the sugar cane microregions of Quirinópolis, Southwest, of
Vale do Rio dos Bois (MRVRB), is cultivates cane since the decade of 1970, when it was
favored by Proálcool - Program of Alcohol, public policy federal that stimulated the
production of vehicles powered by alcohol and which ran from 1975 to 1979; a new and
recent expansion of cane was initiated in mid 2004. The research aims to assess the expansion
of the monoculture of sugar cane in MRVRB 1985 to 2013, in order to clarify the causes of
the recent process and assess its direct and indirect impacts, with emphasis in the areas of
permanent preservation. The methodology was based on the interpretation of satellite images
in the years 1985, 1995, 2005, 2010 and 2013, and in the interpretation of maps the physical
environment through integrated analysis that have led to the drafting of the maps of suitability
agricultural and the identification of areas with restrictions to the cultivation of sugar cane. It
is concluded that in the period considered the standard MRVRB I have recent replacement of
areas of grain and subsequently pastures besides remaining areas of Cerrado, considered to be
Areas of Permanent Preservation (APP), albeit at a lower proportion. The lower expansion
was assigned to the edaphic limitations and relief (topography), which together and associated
to offer logistics, explain its leadership not in recent expansion of the sugarcane plantation.
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RODRIGUES, H. S. M. C. Expansão da cana-de-açúcar na microrregião do Vale do Rio dos Bois – Goiás. 2014. 118 f. Dissertação (Mestrado em Geografia) - Universidade Federal de Goiás, Goiânia, 2014.