Search Results - "BARBOSA, Reinaldo Imbrozio"
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Estimates of forest biomass in the Brazilian Amazon: New allometric equations and adjustments to biomass from wood-volume inventories
Published in Forest ecology and management (20-11-2008)“…Uncertainties in biomass estimates in Amazonian forests result in a broad range of possible magnitude for the emissions of carbon from deforestation and other…”
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Soil carbon changes from conversion of forest to pasture in Brazilian Amazonia
Published in Forest ecology and management (20-08-1998)“…Soils in Brazilian Amazonia may contain up to 136 Gt of carbon to a depth of 8 m, of which 47 Gt are in the top meter. The current rapid conversion of…”
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Structure and tree species composition in different habitats of savanna used by indigenous people in the Northern Brazilian Amazon
Published in Biodiversity data journal (28-09-2017)“…Woody plant diversity from the Amazonian savannas has been poorly quantified. In order to improve the knowledge on wood plants of these regional ecosystems, a…”
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Pyrogenic carbon stocks and its spatial variability in soils from savanna-forest ecotone in amazon
Published in Journal of environmental management (15-08-2023)“…Forest fragments from Amazon are important long-term carbon (C) reservoirs with an essential role in the global C balance. They are often impacted by…”
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Pyrogenic carbon stocks are controlled by hydro-edaphic conditions in different forest types of the Northern Brazilian Amazon
Published in Catena (Giessen) (15-03-2024)Get full text
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Biomass and greenhouse-gas emissions from land-use change in Brazil's Amazonian “arc of deforestation”: The states of Mato Grosso and Rondônia
Published in Forest ecology and management (10-10-2009)“…We calculate greenhouse-gas emissions from land-use change in Mato Grosso and Rondônia, two states that are responsible for more than half of the deforestation…”
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How do habitat and climate variation affect phenology of the Amazonian palm, Mauritia flexuosa?
Published in Journal of tropical ecology (01-05-2013)“…Although the dioecious palm, Mauritia flexuosa plays a pivotal role in Amazonian ecology and economy, little is known about its flowering and fruiting…”
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Allometric models to estimate tree height in northern Amazonian ecotone forests
Published in Acta amazonica (01-04-2019)“…ABSTRACT Allometric models defining the relationship between stem diameter and total tree height in the Amazon basin are important because they refine the…”
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Local ecological knowledge concerning the invasion of Amerindian lands in the northern Brazilian Amazon by Acacia mangium (Willd.)
Published in Journal of ethnobiology and ethnomedicine (03-05-2018)“…Invasive plants can impact biodiversity as well as the lives of native human populations. Natural ecosystems represent sources of natural resources essential…”
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Spatial Distribution and Abundance of "Acacia mangium" on Indigenous Lands in the Serra da Lua Region, Roraima State, Brazil
Published in Human ecology : an interdisciplinary journal (01-04-2019)“…There have been a number of studies on the economic and ecological costs of the spread of invasive plants in natural ecosystems focusing on factors that favor…”
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Conservation priorities for woody medicinal plants in an indigenous community in a savanna area of the northern Brazilian Amazon
Published in Ambiente (Boa Vista) (12-03-2022)“…The pressure for native wood use is a point of great interest for ethnobotanical studies, since these species are indispensable for local communities’ survival…”
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Pedoenvironments driving the monodominance of Peltogyne gracilipes (Leguminosae) in the Northern Amazon, Brazil
Published in Agro@mbiente on-line (02-02-2022)“…Monodominance is unusual in the tropics when compared to the high diversity of tropical forests. Peltogyne gracilipes (Leguminosae) is a deciduous tree species…”
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Use and traditional knowledge of Byrsonima crassifolia and B. coccolobifolia (Malpighiaceae) in a Makuxi community of the Roraima savanna, northern Brazil
Published in Acta amazonica (01-06-2017)“…ABSTRACT Byrsonima crassifolia and B. coccolobifolia, popularly known as mirixis, muricis, mantecos or nances, are common fruit species in the Amazonian…”
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Dataset on wood density of trees in ecotone forests in Northern Brazilian Amazonia
Published in Data in brief (01-06-2020)“…Wood density is expressed by the ratio between dry weight and fresh volume of a sample piece. The value of this measure is an important variable for assessing…”
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Lavrado de Roraima: paradigmas ambientais no contraponto da compensação e reposição florestal
Published in Revista Cerrados (Montes Claros.) (29-12-2022)“…O Lavrado de Roraima é a parte brasileira da maior área contínua de savana do extremo norte da Amazônia, compreendendo cerca de 43.000 km2 ou ~19% da área do…”
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Above-ground biomass and the fate of carbon after burning in the savannas of Roraima, Brazilian Amazonia
Published in Forest ecology and management (12-09-2005)“…Above-ground biomass (live + dead), was estimated pre- and post-burn in eight types of savanna ecosystem in Roraima, in the extreme northern part of the…”
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Fire frequency and area burned in the Roraima savannas of Brazilian Amazonia
Published in Forest ecology and management (17-01-2005)“…Estimates were made of the percentage of area burned and the fire frequency in different ecosystems of non-anthropic savannas located in the north and…”
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Simulated deforestation versus satellite data in Roraima, Northern Amazonia, Brazil
Published in Sustentabilidade em Debate (31-08-2020)“…Cenários de mudança de uso e cobertura da terra na Amazônia são necessários para subsidiar decisões que podem evitar a emissão de milhões de toneladas de CO2…”
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INFLUÊNCIA DOS FATORES EDÁFICOS E DA ALTIMETRIA NA DENSIDADE DA MADEIRA DO COMPONENTE ARBÓREO-ARBUSTIVO DE ÁREAS DE SAVANA ABERTA DE RORAIMA, BRASIL
Published in Revista geográfica acadêmica (01-07-2019)“…Densidade da madeira (DM) é uma variável largamente utilizada para estimativas de estoques de carbono de árvores e arbustos em ecossistemas terrestres. Este…”
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Ocorrência de queimadas em área de uso antrópico na Região Centro Sul do Estado de Roraima, Brasil
Published in Ambiente (Boa Vista) (11-10-2023)“…O estudo teve como objetivo principal apresentar um panorama de ocorrências de queimadas em área de uso antrópico na região Centro Sul do Estado de Roraima…”
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