Navegando por Autor "MACEDO, Magno Roberto Alves"

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Acesso aberto (Open Access)
Ocorrência e usos do tucumã (astrocaryum vulgare mart.) em comunidades ribeirinhas, quilombolas e de agricultores tradicionais no município de Irituia, Pará
(Universidade Federal do Pará, 2013-06) LIMA, Lucas Peranovichi; GUERRA, Gutemberg Armando Diniz; MING, Lin Chau; MACEDO, Magno Roberto Alves
The aim of the study is to demonstrate the occurrence and usage of the Tucumã (Astrocaryum vulgare Mart.) in rural areas of the Municipality of Irituia, in the State of Pará (Brazil), since the use of the palm part of the traditional culture of communities of farmers, riparian and quilombola, used in curing diseases in human and domestic animals, building shelters, obtaining fibers, production of tools and crafts, hunting and fishing. In addition to the uses reported by the population, tucumã has potential for the production of oil and biodiesel. In this sense, the Federal University of Pará – UFPA, in a partnership with the Irituia’s Municipal Government, is studying the implementation of an oleaginous processing plant in the municipality, among them, and includes the Tucumã as a potential source. Such proposal stipulates the production in the agroforestry system, as an alternative to the slash and burn agriculture in the region, reconciling environmental conservation with territorial rural development. Considering the results obtained in the field, it has been found an average of 9.4 stumps per hectare, each stump having 7.7 stipes and 4.7 racemes with up to 146 fruits. If all the Tucumã’s stumps were kept until they reached their average productivity capacity, it is estimated that the fruit production in the rural area of the municipality would be around 132.060 tons, which could produce up to 12.665,4 tons/year of pulp oil and 4.768,4 tons/year of nut oil, confirming the supply of raw material to move this productive chain.
Acesso aberto (Open Access)
Uso de geotecnologias na identificação e mapeamento dos atores do desmatamento na frente pioneira de São Félix do Xingu - PA
(Universidade Federal do Pará, 2009) MACEDO, Magno Roberto Alves; DARNET, Laura Angélica Ferreira; http://lattes.cnpq.br/3450720474559096; https://orcid.org/0000-0003-2523-9248
The fronts in the Brazilian Amazon are mainly responsible for altering the regional landscape, and are characterized by the advance of the forest at breakneck speed and proportion. As a result of this advance, there is the construction of new infrastructure in poor areas with high rates of deforestation, with social problems arising from lack of territorial planning of these areas. This work aims at identifying and monitoring the behavior of actors involved in the deforestation of the pioneer front in Sao Felix do Xingu / PA, in the period 2001 to 2008, through the interaction between the forms identified in remote sensing image data and social, economic, productive, from studies done in the region. The results show that the method presented has differentiated its efficiency, and satisfactory answers in the most advanced front of the border ("front face" and "middle front), and decreased efficiency in the areas of higher occupation of the front (rear front). However the responses from responding quickly to possible changes in the pioneer front, supporting the development of rapid diagnostics of these regions and their use in public policy planning.