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Anais XIV Simpósio Brasileiro de Sensoriamento Remoto, Natal, Brasil, 25-30 abril 2009, INPE, p. 4287-4293.

Expansão da Cana-de-Açúcar no Bioma Cerrado: Uma analise a partir da modelagem perceptiva de dados cartográficos e orbitais
Noely Vicente Ribeiro 1
Laerte Guimarães Ferreira 1
Nilson Clementino Ferreira 1, 2
1

Universidade de Federal de Goiás - UFG/IESA/LAPIG
Campus Samambaia (Campus II) – Prédio da Reitoria, CEP: 74001-970, Caixa Postal: 131
Goiânia – GO, Brasil
{noely.ribeiro, laerte}@iesa.ufg.br
2

Centro Federal de Educação Tecnológica - Coordenação de Geomática
Rua 75 - nº 46 - Centro CEP 74055-110
Goiânia – GO, Brasil [e-mail] Abstract. The Brazilian Cerrado is a fast change biome. In the last 30 years, about 40% of its area was replaced by agricultural crops and cultivated pastures. In face of the global warming concerns, in relation to which there is a growing demand for biofuels, the Cerrado is expected to become the major producer of sugarcane derived ethanol. Assuming the sugarcane will preferentially expand over pasturelands, for both economical and environmental reasons, in this paper we present a preliminary scenario regarding the sugarcane expansion over pastures in general (i.e. cultivated and native, highly productive and overgrazed), based on a perceptive model and on a variety of cartographic layers (e.g. SRTM generated topography, land cover – land use map, road network, etc), including the INPE´s CANASAT data. Taking into account different physical and legal constraints, thus restricting expansion according to certain soil types, slope values, etc, while keeping it away from protected areas (such as the permanent protected areas along riparian environments), we estimated an area of about 8.954.724,45 ha suitable for use, threefold the current occupation. Interestingly, approximately 66% of the sugarcane planted in 2008 fall within the predicted expansion boundaries.