Burned Forest
Mostrando 1-12 de 22 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. Levantamento de plantas de baixa inflamabilidade em áreas queimadas de Cerrado no Distrito Federal e análise das suas propriedades físicas
Resumo Os incêndios florestais se propagam principalmente através do material combustível superficial. Portanto, plantas de baixa inflamabilidade podem ser usadas para proteção contra incêndios, pois dificultam a propagação do fogo. Neste sentido, o objetivo deste trabalho foi realizar um levantamento de plantas de baixa inflamabilidade no cerrado do
Ciênc. Florest.. Publicado em: 30/05/2019
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3. Temporal evaluation of soil chemical attributes after slash-and-burn agriculture in the Western Brazilian Amazon
ABSTRACT. In Amazonia, the main causes of deforestation are systems based on slash-and-burn agriculture. The objective of this work was to evaluate temporal changes in the soil chemical attributes after the vegetation has been slashed and burned in an area of native forest in the Western Amazon. For this study, four hectares of forest in Cruzeiro do Sul, Sta
Acta Sci., Agron.. Publicado em: 28/03/2019
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4. Influence of Fire on the Natural Regeneration of a Semideciduous Seasonal Rainforest Fragment
ABSTRACT The objective was to evaluate the influence of fire in a forest fragment through litter biomass analysis, regeneration of Cecropia sp., and canopy openness. Two treatments were established, one of them corresponding to an area affected by fire (T1) and the other not affected by fire (T2), both areas encompassing 0.3 ha of forest. Samples were colle
Floresta Ambient.. Publicado em: 13/09/2018
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5. Prediction of soil CO2 flux in sugarcane management systems using the Random Forest approach
ABSTRACT: The Random Forest algorithm is a data mining technique used for classifying attributes in order of importance to explain the variation in an attribute-target, as soil CO2 flux. This study aimed to identify prediction of soil CO2 flux variables in management systems of sugarcane through the machine-learning algorithm called Random Forest. Two differ
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-08
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6. Land Use and Changes in Soil Morphology and Physical-Chemical Properties in Southern Amazon
ABSTRACT Many Amazonian farmers use the slash-and-burn method rather than fertilization for crop production. The aim of the present study was to evaluate changes in the morphological, physical, and chemical properties of naturally fertile Inceptisols after conversion from native forest to different uses in southern Amazonia, Brazil. Land covered by dense nat
Rev. Bras. Ciênc. Solo. Publicado em: 31/07/2017
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7. Post-fire dynamics of the woody vegetation of a savanna forest (Cerradão) in the Cerrado-Amazon transition zone
ABSTRACTFire can change the species composition, diversity, and structure of savanna vegetation, thus altering growth and mortality rates. Such changes in the woody vegetation of burned savanna forest were evaluated over four years in comparison to unburned savanna forest. All woody plants with a diameter at breast height > 10 cm were measured in 100 permane
Acta Bot. Bras.. Publicado em: 2015-09
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8. Bryoflora of the municipalities of Soure and Cachoeira do Arari, on Marajó Island, in the state of Pará, Brazil
This study aims to investigate the richness and ecological aspects (ecosystem and substrate) of mosses and liverworts at two municipalities on Marajó Island, in the state of Pará, Brazil. The study area (6615 km²) encompasses the municipalities of Soure and Cachoeira do Arari. Bryophytes were collected from the 10th to the 16th of January, 2007, during ra
Acta Bot. Bras.. Publicado em: 2013-03
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9. Dinâmica e composição da avifauna do sub-bosque sob influência de diferentes históricos de queimada em uma savana Amazônica / Bird dynamics and composition under different fire regimes in an Amazonian Savanna
Savannas are ecosystems maintained by fires, characterized by a fire-adapted biota. Different fire regimes can generate structurally diverse vegetation, and savanna birds are known to be closely related to vegetation structure. However, long-term approaches and interaction of fire with other environmental factors need to be explored for the better understand
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/08/2011
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10. Mesofauna do solo em áreas de floresta e pastagem da Amazônia Central.
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Belém. Publicado em: 2011
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11. Recuperación post-fuego de la comunidad de líquenes epífitos en la provincia de Córdoba, Argentina
Lichens are recognized bioindicators of environmental quality. Studies of lichen communities in relation to forest fires have shown the response to fire over micro-environmental variables that shape the community in the absence of this disturbance. The aim of this contribution is to recognize the effect of fire on the lichen community of Sierra Chaco in Cord
Acta Botanica Brasilica. Publicado em: 2009-09
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12. ESTIMATIVA DOS ESTOQUES DE BIOMASSA E NUTRIENTES EM FLORESTAS SECUNDÁRIAS NA AMAZÔNIA CENTRAL
This work evaluates the contents, storage and the distribution of nutrients in different parts of trees (leaves, fine and coarse branches, trunks, and fine and coarse roots), from two secondary forests with different history of uses and ages. Also the soil characterization of the two areas was conducted. Allometric equations were applyed to develop a model o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/04/2008