Jorge Luis Silva Brito
Federal University of Uberlandia
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Publication
Featured researches published by Jorge Luis Silva Brito.
Environmental Monitoring and Assessment | 2010
Edson Eyji Sano; Roberto Rosa; Jorge Luis Silva Brito; Laerte Guimarães Ferreira
The Brazilian tropical savanna (Cerrado), encompassing more than 204 million hectares in the central part of the country, is the second richest biome in Brazil in terms of biodiversity and presents high land use pressure. The objective of this study was to map the land cover of the Cerrado biome based on the segmentation and visual interpretation of 170 Landsat Enhanced Thematic Mapper Plus satellite scenes acquired in 2002. The following land cover classes were discriminated: grasslands, shrublands, forestlands, croplands, pasturelands, reforestations, urban areas, and mining areas. The results showed that the remnant natural vegetation is still covering about 61% of the biome, however, on a highly asymmetrical basis. While natural physiognomies comprise 90% of the northern part of the biome, only 15% are left in its southern portions. Shrublands were the dominant natural land cover class, while pasturelands were the dominant land use class in the Cerrado biome. The final Cerrado’s land cover map confirmed the intensive land use pressure in this unique biome. This paper also showed that Landsat-like sensors can provide feasible land cover maps of Cerrado, although ancillary data are required to help image interpretation.
Pesquisa Agropecuaria Brasileira | 2008
Edson Eyji Sano; Roberto Rosa; Jorge Luis Silva Brito; Laerte Guimarães Ferreira
O objetivo deste trabalho foi mapear o uso da terra do Bioma Cerrado na escala de 1:250.000. As seguintes classes de uso da terra foram consideradas: culturas agricolas, pastagens cultivadas, reflorestamentos, areas urbanas e areas de mineracao. A metodologia envolveu a segmentacao de imagens do satelite Landsat, a classificacao visual dos segmentos e a analise da exatidao global do mapa final. Aproximadamente 39,5% do Cerrado apresentaram algum tipo de uso de terra. Pastagens cultivadas e culturas agricolas foram as classes predominantes, com 26,5 e 10,5%, respectivamente.
Sociedade & Natureza (online) | 2012
Manoel Reinaldo Leite; Jorge Luis Silva Brito
This study sought to understand and map the configuration of the relief, regarding the 1o and 2o taxon of the methodology of Ross (1992), in the micro region of Montes Claros, through the application of GIS techniques and orbitals product . In order to promote, through cartographic documents, geomorphological record of the micro region in focus. The results of the overlays of SRTM data and geological data from CPRM were satisfactory since it allowed for the creation of a wide range of information on the study area.
Sociedade & Natureza (online) | 2010
Maryory Rodríguez Atehortúa; Yolanda Rubiano Sanabria; Jorge Luis Silva Brito; Silvio Carlos Rodrigues
On account of the precaution to raise the quality of life for people in Brazil and Colombia, isolated studies were developed to know the main human and physical resources and thus establish standards for proper management and exploitation of the territory. The aim of this study was to map and compare the geology, geomorphology, soils and land use and natural vegetation of the high plains in the municipalities of Uberlândia (Brazil) and Puerto Lopez (Colombia). Georeferenced Information System Processing was used (SPRING) for storage, handling and processing of information collected in the field and satellite imagery. The results show that there are many important differences between the municipalities of Puerto Lopez and Uberlândia, which makes reconsidered the idea of transfer of technology packages do not coded in relation to the conditions of each place where they will be implemented. Deliberately do not recommend using the same methods or technologies for agricultural production in the two municipalities.
Sociedade & Natureza (online) | 2015
Thalita Mendes Resende; Vania Rosolen; Martial Bernoux; Jorge Luis Silva Brito; Elias Nascentes Borges; Fabrício Pelizer Almeida
A pastagem e uma importante atividade economica no Cerrado. A partir das decadas de 1970 e 1980, programas para melhoria das pastagens introduziu gramineas principalmente do genero Brachiaria. Quando manejada adequadamente, a pastagem e reconhecida como eficiente em sequestrar carbono e contribuir com a mitigacao das concentracoes de gases do efeito estufa na atmosfera, condicao que sera atingida em funcao do tempo de uso e das propriedades de cada tipo de solo. A microrregiao de Uberlândia no Triângulo Mineiro (MG) e tradicionalmente ligada a pastagem. No entanto, as condicoes geologicas, naturais do solo e do clima sao fatores que podem acelerar a degradacao dos solos quando a pastagem nao e manejada adequadamente. O objetivo deste artigo foi comparar as mudancas das propriedades do solo e a incorporacao de C em areas recobertas com [1] Cerrado arboreo natural, [2] sistema misto convertido inicialmente ao uso agricola e os ultimos 15 anos de pastagem, e [3] pastagem cultivada ha 30 anos. Os resultados mostram a influencia de uso sobre a dinâmica da materia orgânica, e avalia o potencial de degradacao dos solos mediante a atividade, o manejo e o tempo de uso do solo.
Geography Department, University of Sao Paulo | 2013
Jorge Luis Silva Brito; Monoel Reinaldo Leite; Expedito José Ferreira; Marcos Esdras Leite
O mapeamento temporal do uso/cobertura da terra permite obter dados sobre a dinâmica de mudanca do espaco natural, consequentemente essas informacoes poderao auxiliar na analise da transformacao ambiental. Nesse contexto, este trabalho procurou analisar as mudancas no uso/cobertura da terra da bacia do Rio Vieira, nos ultimos 25 anos, cujos periodos de analise definidos foram 1985, 1995 e 2010. Do ponto de vista operacional, o tempo de execucao da metodologia utilizada, desde a aquisicao dos produtos orbitais ate a validacao dos mapeamentos, foi relativamente curto. Fato que merece destaque, sobretudo, porque permitiu a elaboracao de uma vasta gama de informacoes temporais da bacia do Rio Vieira. Destacando uma recuperacao de 54,79 km² de vegetacao natural.
Archive | 2010
Edson Eyji Sano; Roberto Rosa; Jorge Luis Silva Brito; Laerte Guimarães Ferreira
Brazilian Journal of Geology | 2009
Vania Rosolen; Uwe Herpin; Nívia M.M. Coelho; Luciana M. Coelho; Jorge Luis Silva Brito; Luciano Alves da Silva; Samuel do Carmo Lima
Caminhos de Geografia | 2005
Silvio Carlos Rodrigues; Jorge Luis Silva Brito
Sociedade & Natureza (online) | 2006
Roberto Rosa; Jorge Luis Silva Brito; Samuel do Carmo Lima