Fires In The Amazon
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Post-fire recovery of a dense ombrophylous forest in Amazon
Abstract: The fires that occur in the Amazon are as damaging as the deforestation is. There is a need for further long-term studies on dynamics of tree communities in forests affected by fires. In the present study we evaluated the dynamics of tree species, before and after an accidental fire that occurred in 1997 in an experimental area of terra firme fores
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
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2. Effects of exposure to fine particulate matter in elderly hospitalizations due to respiratory diseases in the South of the Brazilian Amazon
Exposure to air pollution is an important cause of hospital admissions due to respiratory diseases. Nevertheless, few studies use pollutant concentration data estimated by mathematical models. A time-series ecological study was developed, using data from hospitalizations due to respiratory diseases in people over 60 years of age, residents of Cuiabá, Brazil
Braz J Med Biol Res. Publicado em: 24/01/2019
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3. Estoque de combustível fino e decomposição de folhas em florestas de igapó do rio Negro / Fine fuel load and leaf decomposition in Rio Negro floodplain forests
In years of low rainfall, fires have occurred in Amazonian black-water floodplain forests, including the Middle Rio Negro. The fires are documented from satellite images. Forest fires require ignition sources, fuel and dry weather. To understand the susceptibility of these forests to fire we investigated the stock of fine fuel on the ground at 29 sites in bl
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/10/2012
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4. Efeito indireto dos aerossóis: observações em nuvens amazônicas em atmosfera poluída e na transição para limpa segundo os dados dos programas LBA/SMOCC/ENFIM! E AERONET/NASA. / Indirect effect of aerosols: observations in the Amazon clouds in polluted air and clean transition to the second program data LBA / SMOCC / AT LAST! And AERONET / NASA.
In the Brazilian Amazon, fires occur seasonally. The pollution generated because changes in time weather and climate of the Amazon. Studies have shown that the emission of particulate matter alters the radiative balance via direct effect (Solar radiation scattering and reflection.) and indirect aerosol (Increased concentration droplet and the cloud content l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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5. Análise integrada do uso e aptidão agrícola dos solos na Amazônia Legal visando o desenvolvimento sustentável
Encroachment of the agricultural frontier over the Brazilian Amazon (Amazônia Legal) forest and savanna (cerrado) areas generates an array of negative environmental impacts, such as deforestation and fires. The conflict between the pressing agricultural front, mainly represented by cattle and soya productions, and the preservation of such forest and cerrado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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6. Processamento de imagens digitais e análise espacial para o estudo da susceptibilidade a incêndios florestais nas regiões do Apiaú e Ribeiro Campos - RR / Image processing techniques and space analyses for study to the susceptibily environment fires in Apiaú and Ribeiro Campos localities in Mucajaí - RR
This study has forest analyzes the environment factors which contribute to the occurrence of the environment fires in Apiaú and Ribeiro Campos localities in Mucajaí - RR with the employment of image processing techniques and space analyses through the Analytical Hierarchy Process (AHP)
Publicado em: 2006
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7. Uma investigação teórico-experimental da combustão de madeira / A theoretical and experimental investigation of wood combustion
This work presents an experimental and theoretical analysis of the combustion characteristics of Brazilian woods: pinus (Pinus elliot), ipê branco (Tabebuia roseo-alba), embaúba (Cecropia pachystachya) e eucalyptus (Eucalyptus citriodora). Experimental results of all phases of burning are presented for selected samples of the different woods. Cylinders and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2005
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8. A theoretical and experimental investigation of wood combustion / Uma investigação teórico-experimental da combustão de madeira
This work presents an experimental and theoretical analysis of the combustion characteristics of Brazilian woods: pinus (Pinus elliot), ipê branco (Tabebuia roseo-alba), embaúba (Cecropia pachystachya) e eucalyptus (Eucalyptus citriodora). Experimental results of all phases of burning are presented for selected samples of the different woods. Cylinders and
Publicado em: 2005
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9. Monitoring and characterization of areas submitted to logging in amazonia by change-detection techniques / Monitoramento e caracterização de áreas submetidas à exploração florestal na amazônia por técnicas de detecção de mudanças
Selective logging has been affecting extensive areas of primary forests in Amazonia. This activity, when practiced in a predatory way, causes severe environmental impacts such as erosion and soil compaction, increased carbon emissions, increased forest-fire susceptibility and increased risk of local species extinction. Monitoring logging activity is fundamen
Publicado em: 2004
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10. Técnicas analíticas nucleares aplicadas a medida em larga escala de aerossóis atmosféricos na região amazônica / Nuclear analytical techniques applied to large-scale measurement of atmospheric aerosols in the Amazon region
Neste trabalho o aerossol atmosférico, presente em diferentes localidades da região Amazônica, foi caracterizado. Foram estudadas as emissões biogênicas naturais da floresta, bem como as emissões de material particulado para a atmosfera, devido à ocorrência em larga escala de queimadas na Amazônia durante a estação seca. O aerossol atmosférico fo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/1996