Biomass Quantification
Mostrando 13-24 de 59 artigos, teses e dissertações.
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13. MODELOS PREDICTIVOS DE BIOMASA AÉREA DE Eucalyptus grandis PARA EL NORESTE DE ARGENTINA
ABSTRACT Different industrial, environmental and energy interests have led, in recent years, to the analysis of different possibilities for utilization of forest biomass is gaining an increasing role, so that quantification of the biomass from these forest systems is an essential first and an unavoidable step. The aim of this study was to develop models whic
Ciênc. Florest.. Publicado em: 2015-09
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14. ESTUDO COMPARATIVO ENTRE EXTRAÇÃO SOXHLET E ULTRASOM PARA DETERMINAÇÃO DE HIDROCARBONETOS POLICÍCLICOS AROMÁTICOS EM SEDIMENTOS DO ESTUÁRIO DO RIO SERGIPE POR CROMATOGRAFIA A GÁS ACOPLADA A ESPECTROMETRIA DE MASSAS. / COMPARATIVE STUDY OF EXTRACTION SOXHLET AND ULTRASOUND DETERMINATION FOR OIL POLYCYCLIC AROMATIC SEDIMENTS SERGIPE RIVER ESTUARY BY GAS CHROMATOGRAPHY MASS SPECTROMETRY ATTACHED.
Polycyclic aromatic hydrocarbons (PAHs) are compounds that can be found in environmental compartments such as atmosphere, soil, sediment and water. Throughout bioaccumulation, they can also be incorporated into vegetables and animals tissues. They are mainly originated from anthropogenic sources such as fossil fuels and biomass burnings. Due they potential t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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15. Quantificação de biomassa e de nutrientes na serapilheira em trecho de Floresta Estacional Semidecidual Submontana, Cachoeiro de Itapemirim, ES / Quantification of biomass and nutrients in the litter in a section of Submontane Seasonal Semideciduous Forest, Cachoeiro de Itapemirim, ES
O presente trabalho teve por objetivo estudar a deposição e o acúmulo da serapilheira e os nutrientes nela contidos na Floresta Estacional Semidecidual Submontana, localizada no município de Cachoeiro de Itapemirim, ES. A amostragem da serapilheira depositada e acumulada foi realizada em 12 parcelas de área fixa (20 m x 50 m), sendo as mesmas distribuí
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011
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16. Quantificação do estoque volumétrico, de biomassa e de carbono em uma floresta estacional semidecidual no município de Viçosa-MG / Quantification of the volumetric, biomass and carbon stoks in a semideciduous seasonal forest in the municipality of Viçosa-MG
Com o objetivo geral de quantificar o estoque volumétrico, de biomassa e de carbono em diferentes compartimentos de uma floresta natural, no bioma Mata Atlântica, desenvolveu-se o presente trabalho em um fragmento florestal de 17 hectares, denominado Mata da Silvicultura, localizado no município de Viçosa-MG e pertencente à Universidade Federal de Viço
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2010
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17. Espectroscopias de infravermelho próximo e médio na quantificação de atributos do solo, com ênfase na matéria orgânica e na biomassa microbiana / Near and mid-infrared spectroscopy for quantification of soil atributes, focusing organic matter and microbial biomassl
A matéria orgânica e a biomassa microbiana do solo consistem em sensíveis indicadores de qualidade do solo e de seus estoques de carbono e nitrogênio que, juntamente com a textura, têm auxiliado na escolha de formas de manejo agronômico mais sustentáveis. Os métodos disponíveis para a determinação da matéria orgânica (Walkley-Black modificado da
Publicado em: 2010
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18. Fungos micorrízicos arbusculares em ecossistema de Mata Seca no norte de Minas Gerais. 2010. / Arbuscular mycorrhizal fungi in Dry Forets ecosystems in north of Minas Gerais. 2010. 68 p. Dissertation (MSc in Plant Biotechnology and Applied). Institute of Biology, Federal Rural University of Rio de Janeiro, Seropédica, RJ. 2010.
This study was conducted in State Park Dry forest in the city of Manga in the North of Minas Gerais, Brazil and aimed to evaluate the occurrence and diversity of arbuscular mycorrhizal fungi (AMF) and the protein related to soil glomalin and biomass of external mycelium in Dry Forest ecosystems in the North of Minas Gerais. To collect the soil samples in eac
Publicado em: 2010
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19. Desenvolvimento e validação de um modelo de crescimento de biofilmes de S. mutans e estudo do efeito da sacarose na expressão de gtfBCD e dexA em biofilmes dentais formados in vitro e in situ / Development and validation of S. mutans biofilm growth model and study of effect of sucrose on gene expression of gtfBCD and dexA in dental biofilms formed in vitro and in situ
In vitro and in situ models have been developed to study dental biofilms. Protocols, that simulate the alternations of "feast or famine" episodes that happen in oral environment in the presence of dietary carbohydrates and allowing dental caries evaluation, are necessaries. On the other hand, few studies about gene expression of dental biofilm formed in situ
Publicado em: 2010
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20. Tamanho de parcelas para quantificação de biomassa e carbono em uma floresta ombrófila densa na Mata Atlântica / Size of fragments for the quantification of biomass and carbon in a thick ombrophilous rainforest in Mata Atlântica
Rainforest is defined as a vegetable formation which takes up a large part of the Brazilian territory, from the Amazon Rainforest to the forests of the highlands of the southern states of Brazil, going through the Atlantic Forest. Due to the type of colonization Brazil had , which was a colonization of exploitation, a large part of this forest was destroyed,
Publicado em: 2009
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21. Avaliações energéticas de espécies florestais nativas plantadas na região do Médio Paranapanema, SP / Energy assessments of Brazilian species planted in the region of the Middle Paranapanema, SP
The use of renewable sources of energy is a worldwide trend and is being increasingly widespread, mainly for environmental and economic reasons. Biomass has become one of the most commonly used renewable sources of energy in the last years. Many of the biomass fuels used today comes in the form of wood products and others sources. In Brazil, woody biomass ha
Publicado em: 2009
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22. Fitorremediação de solos contaminados com óleos lubrificantes usados / Phytoremediation of soils contaminated with used lubrificant oils
In Brazil, the logistics of collecting used lubricant oil is regulated by the National Petroleum Agency (ANP). However, there is risk of environmental contamination during transport, storage, recycling and final disposal of waste. This study aimed to verify if the capacity for phytoextraction and accumulation of metals in soils contaminated with used lubrica
Publicado em: 2009
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23. Estimativa de áreas queimadas com produtos modis como subsídio à estimativa de emissões de gases de efeito estufa pela queima de biomassa na Amazônia e Cerrado Brasileiros / Burned area estimation using MODIS fire products as a subsidy for greenhouse gases emissions estimation due biomass burning in the Brazilian Amazon and Cerrado.
At present, the estimates of parameters used in global emissions models are based on low and moderate spatial resolution satellite data, and even though those was an advanced since the rising of the first orbital platforms, it is still necessary to reduce the uncertainty of these estimates. This improvement depends basically, on the capacity of the scientifi
Publicado em: 2009
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24. Productivity and chemical composition of monoculture and syndications sorghum and corn with green manure at different times of court / Produtividade e composição bromatológica de monocultivos e consorciações de sorgo e milho com adubos verdes em diferentes épocas de corte
The project goal was to study the productivity and quality of forage produced bromatological from monoculture of sorghum and maize and intercropping of them with dwarf pea, sunn hemp, white lupine, sunflower and radish. The experiment was installed in the area of agricultural production of the Campus II Unoeste in Presidente Prudente-SP, on April 3rd, 2008.
Publicado em: 2009