Avaliação ambiental na implementação do empreendimento sucroalcooleiro na região de Capixaba, Acre

• Autor(a) principal: Gomes, Marcos Antonio
• Data de Publicação: 2010
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/1609
• topic: Uso do solo; Recursos hídricos; Manejo e conservação do solo; Using the soil; Water resources; Management and soil conservation; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO

This study was carried out on eastern Acre where the area under indirect influence of the sucroalcohol enterprise embraces part of the following counties: Capixaba, Rio Branco, Plácido Del Castro, Senator Guimard and Xapuri. The objective was to analyze the effects of the modifications in using the soil, with the replacement of the pasture by sugarcane cropping, upon the regional hydrological balance. In the main soil classes of the influence area, the trenches (profiles) were opened and soil samples of the respective horizons were collected for physical, chemical and mineralogical analyses. The thematic maps of the soils, agricultural aptitude and of the hydrographic basins were elaborated, by using the digital model of hydrologically consistent elevation, inserted in the area under study. According to the results, the following conclusions were drawn: for the main classes of soils (Latosols and Argisols), the agricultural aptitude of the soils is favorable to the cropping of sugarcane; and the substitution of the current use of the soil with pastures degraded by sugarcane cropping will provide better conditions of infiltration and percolation of the water in the soil of the hydrographic basins of the rivers Acre, Abunã, Xipamano and Iquiri, therefore favoring the supply of the water table as well as superficial availability of water.