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| Registros recuperados: 587 | |
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| Froufe, Luís Cláudio Maranhão; Rachwal, Marcos Fernando Gluck; Seoane, Carlos Eduardo Sicoli. |
| Carbon storage of agroforestry systems, regenerated areas, conventional agriculture and pasture was evaluated at Alto Ribeira Valley region, São Paulo State, Brazil, in different compartments of Land-use systems (LUS). In soil, classified as Entisols and Inceptisols, we found similarities among all LUS, dued to their low contents of organic carbon, and similar values of bulk density. The total carbon stocked on land-use systems, greater amounts were determined on regenerated areas (115.78 Mg ha-1), followed by agroforestry systems (75.38 Mg ha-1), agriculture (47.07 Mg ha-1), and pasture (36.01 Mg ha-1). Despite their conservative characteristic, the silvicultural practices of multistrata agroforestry systems have to be improved for forest production and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservação dos recursos naturais; Floresta Ombrófila Densa; Estoque de carbono; SAF; Sistemas de uso do solo Agroforestry systems; Atlantic Rain Forest; Carbon sink; Land use; Natural resource conservation. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/180 |
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| Fritzsons, Elenice; Mantovani, Luiz Eduardo; Wrege, Marcos Silveira. |
| Identificar áreas ecológicas similares quanto ao clima, solos e vegetação apresenta inúmeras utilidades potenciais, desde o planejamento do uso e ocupação da terra, incluindo a produção agrossilvipastoril, até a conservação dos ecossistemas naturais. O objetivo deste trabalho foi o de realizar um zoneamento climático para o Estado do Paraná, assistido por análise estatística e com base em compartimentos geomorfológicos para delimitação das unidades geoclimáticas. Por interpretação da análise de cluster sobre os dados das estações metereológicas, o estado foi dividido, inicialmente, em dois grandes grupos: áreas mais quentes e áreas mais frias. A seguir, por critérios estatísticos dentre as áreas quentes, as áreas litorâneas foram separadas das áreas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest zoning; Geoclimatic areas; Climate; Forest plantation Zoneamento florestal; Zonas geoclimáticas; Clima; Floresta. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/162 |
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| Witeck Neto, Leopoldo; Link, Dionísio; Batistella Pasini, Mauricio. |
| A busca por informações sobre as espécies de cerambicídeos associadas à Ocotea puberula (Rich.) Nees (Lauraceae) em galhos cortados por Oncideres cervina Thomson, 1868 (Cerambycidae: Coleoptera), motivou o presente estudo. De 49 galhos cortados do hospedeiro na região central do estado do Rio Grande do Sul, determinou-se a emergência de cerambicídeos com avaliações bissemanais. Além de O. cervina, o serrador dos galhos, foram observadas três espécies de cerambicídeos, Trestonia capreola (Germar, 1824), Dihammaphora signaticollis Chevrolat, 1859 e Tropidozineus rotundicollis (Bates, 1863) (Cerambycidae: Coleoptera), sendo para duas o primeiro registro de planta hospedeira desta família botânica. O período de emergência dos cerambicídeos de galhos de O.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Engenharia Florestal; Entomologia Florestal Coleoptera; Biologia; Oncideres cervina; Planta hospedeira Coleoptera; Biology; Oncideres cervina; Host plant. |
| Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/357 |
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| Maeda, Shizuo; Silva, Helton Damin da; Bellote, Antonio Francisco Jurado. |
| The aim of this work was to evaluate, in vase, the effect of cellulosic residue in soil and chemical characteristics of effluents resulting from that application in Litholic Humic Neosol layers collected in the 0 to 10 and 10 cm to 30 cm. Doses of sludge, equivalent to 0, 10, 20, 40 and 80 Mg ha-1 were implanted in a randomized design. Aliquots corresponding to doses of sludge, collected on the treatment were mixed to the soil layer of 0 to 10 cm and placed in vessels after the completion of the soil layer from 10 cm to 30 cm. At 117 days after implantation of the test, samples were collected from the soil layer from 0 to 20 cm and from the effluent resulting from the application of water for irrigation. The treatments changed the characteristics... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil attributes cellulosic residue. solos; Atributos químicos; Resíduo celulósico.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/145 |
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| Dias Júnior, Ananias Francisco; Andrade, Azarias Machado de; Costa Júnior, Djailson Silva da. |
| The objective of the present was to characterize the quality of briquettes produced with fines of vegetable coal and bamboo residues, under different formulations. Specific gravity density, bulk density mass, moisture content and speed or rate of thermic degradation were evaluated. Compressive strength and rotation test were applied to the briquettes. Superior and inferior calorific values from briquettes were estimate by adjusted equations. Briquettes produced with the highest percentages of vegetable coal fines presented higher specific gravity, bulk density, ash content and fixed carbon. It also presented resistance to fall and abrasion. Briquettes with higher bamboo residues content presented faster degradation, higher compressive strength, beyond... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Florestais Engenharia Florestal; Energia de Biomasso Bambu; Moinha de carvão; Poder calorífico; Degradação. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/613 |
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| Januário, Aline Bispo Santos; Peres Filho, Otávio; Souza, Marcelo Dias de; Dorval, Alberto; Silva, Marcelo Muniz. |
| The objective of this study was to collect, identify and carry out a faunistic characterization of Geometridae family in Cotriguaçu county, Mato Grosso State, Brazil in different forest fragments. The sampled sites were: Tectona grandis plantation; mixed stand formed by Ficus spp., Astronium sp., Copaia Jacaranda, Syzygium jambolanum and Aspidosperma sp., initial forest regeneration, riparian forest and native forest. The samples were collected from July 2007 to June 2008. In each site, three light traps were placed at 1.5 m above the soil. It was used the model Luiz of Queiroz, with lights twice a month from 6:00pm to 6:00am. The faunistic index of dominance, frequency, abundance and constancy were determined. It was collected 387 individuals, divided in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Synchlora; Semiothisa; Entomofauna; Biodiversity Recursos Florestais; Engenharia Florestal; Entomologia Florestal Synchlora; Semiothisa; Entomofauna; Biodiversidade. |
| Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/399 |
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| Curto, Rafaella De Angeli; de Mattos, Patrícia Povoa; Braz, Evaldo Muñoz; Zachow, Randolf; Péllico Netto, Sylvio. |
| The objective of this study was to characterize of an unmanaged stand of Araucaria angustifolia and to development of models to quantify the wood potential, aiming to support the development of forest management plans in stands with similar conditions. The work was developed into a stand established in 1946, in National Forest of Açungui, in Campo Largo County, Paraná State, Brazil. There was only one thinning in the stand, between 1970 and 1980. From the frequency of individuals in each diametric class, it was observed the condition of stagnation and competition with cohort in the beginning of class distribution. With the application of the probability density function of Weibull-3P, Trorey model, and the 5th polynomial by diameter class, it was possible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest Management; National Forest; Diameter distribution Engenharia Florestal; Manejo florestal Manejo florestal; Floresta Nacional; Distribuição diamétrica. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/764 |
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| Bufalino, Lina; Protásio, Thiago de Paula; Couto, Allan Motta; Nassur, Otávio Augusto Carvalho; de Sá, Vânia Aparecida; Trugilho, Paulo Fernando; Mendes, Lourival Marin. |
| This work aimed to quantify and compare chemical and energetic properties of Australian red cedar Toona ciliata MJ Roem var. australis (FV Muell.) C. DC wood from thinning and primary sawing for reconstituted panel and energy production; and also to verify the efficiency of extractive removal by water treatments, in order to improve wood quality for particleboard production. Lignin, holocellulose, extractives, ash, carbon, hydrogen, oxygen, nitrogen and sulfur contents and higher heating value were determined. Two water treatments for extractive removal were performed: immersion in cold water for 24 hours and immersion in boiling water for 2 hours. Lower values of ash, holocellulose, hydrogen and nitrogen contents and higher contents of lignin, total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Total extractives Solid wastes Reconstituted panels Higher heating value Toona ciliata Recursos Florestais; Engenharia Florestal; Tecnologia da Madeira Extrativos totais Resíduos sólidos Painéis reconstituídos Poder calorífico Toona ciliata. |
| Ano: 2012 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/356 |
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| Gomes, João Bosco Vasconcellos; Curcio, Gustavo Ribas; Dedecek, Renato Antonio; Ramos, Michele Ribeiro. |
| Establishing Comperj (petrochemical complex Petrobras and partner companies at Itaboraí city, Rio de Janeiro State, Brazil) involves a great impact on natural environment, while it is an opportunity for actions of environmental compensation. The objectives of this study were to characterize soil chemistry and mineralogy of Comperjarea, based on landscape, particle size distribution and soil morphology, also considering different parent materials, landscape positions (shoulder, backslope and footslope at the hillslope and toeslope at floodplain) and vegetation cover groups. Different landscape positions, comparing toeslope and average hillslope, have differential behavior on several chemical attributes, besides those associated with landscape position... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Secondary forests; Pastures; Rio de Janeiro Caracterização ambiental Florestas secundárias; Pastagens; Rio de Janeiro. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/567 |
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| Helm, Cristiane Vieira; Steenbock, Walter; Mazza, Maria Cristina Medeiros; Mazza, Carlos Alberto da Silva. |
| The need for new products requires the use of local raw material, which is either processed rudimentarily, such as the heart of Cordyline spectabilis Kunth & Bouché, or sometimes not processed at all. The aim of this work was to store the heart of Cordyline spectabilis from the municipality of Campo Largo, state of Parana, Brazil, as canned food and evaluate the nutritional value. The residue obtained from this process was used to make flour. The nutritional composition of both products was determinade. Their chemical compositions, pH levels and acidity were also checked for quality and conservation. The canned uvarana heart featured high protein levels (4.68 g 100 g-1) and the flour presented high levels of fibre (69.11 g 100g-1). Both products... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Uvarana; Home-made canned food; Nutritional evaluation Uvarana; Conserva vegetal; Avaliação nutricional. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/76 |
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| Mafacioli, Rudimar; Tessmann, Dauri José; Santos, Álvaro Figueredo dos; Vida, João Batista. |
| Leaf anthracnose, caused by Colletotrichum loeosporioides, is the most important disease of peach palm plants (Bactris gasipaes var. gasipaes) in nurseries in the Central and Southern Brazil. The objective of this study was to evaluate efficacy of some new formulations of fungicides for controlling anthracnose transplants in orchards. An assay with randomized block design was carried out, with five different fungicides and a control, with four replicates. Each replicated had 10 plants. The fungicides evaluated were: piraclostrobin + epoxiconazole (0,13 + 0,05 g.L-1), tetraconazole (0,1 g.L-1), tebuconazole (0,2 g.L-1 ), chlorotalonil (2 g.L-1) e chlorotalonil + Thiophanate-methyl (1 + 0,4 g.L-1). Each fungicide was sprayed seven times, at 15-day intervals.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Disease; Heart-palm; Arecaceae Doença; Palmito; Arecaceae. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/220 |
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| Maeda, Shizuo; Bognola, Itamar Antonio. |
| The use of wastes generated in the pulp and paper industries as an input to agricultural and forestry is an alternative to the disposal problem, and contribute to reducing the cost of agricultural and forestry production. However, for proper and safe use of this waste, it is necessary to know its effects on soil chemical properties. The effect of doses of calcium carbonate, ash forest biomass, lime mud and cellulosic sludge in chemical attributes of a Dystrophic humic Entisol. The pH, exchangeable Ca, Mg and P increased with increasing doses, while the Al content and its saturation were reduced with the application of doses of all tested materials. The K levels increased mainly by wood ash. The Ca/Mg ratio was increased by the application of calcium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Timber ash; Lime sludge; Cellulosic sewage sludge Recursos Florestais Cinza de madeira; Lama de cal; Lodo celulósico. |
| Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/417 |
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| Farias Júnior, José Aminthas de; Arriel, Eder Ferreira; Lúcio, Assíria Maria Ferreira da Nóbrega; Freire, Antonio Lucineudo de Oliveira; dos Santos, Rivaldo Vital; Lucena, Rosivânia Jerônimo. |
| Dotada de grande resistência à seca, Cnidoscolus quercifolius Pohl (faveleira) é uma espécie que pode ser usada como forrageira, medicinal, alimentação humana, biodiesel e para recuperação de áreas degradadas. Entretanto, apresenta dificuldade de enraizamento pela técnica da estaquia e, por isto, foi avaliada a técnica alternativa da alporquia. Os tratamentos foram constituídos por substratos e concentrações de AIA (ácido indolacético). Foi observado um percentual de 46% de enraizamento no rejeito de vermiculita, com ganho significativo de matéria seca radicular. Não houve efeito significativo das doses de AIA, para as variáveis analisadas. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Florestais; Genética Vegetal Substratos; Fitorreguladores; Semiárido; Impacto ambiental; Rejeito de mineração Substrates; Phytoregulators; Semiarid; Environmental impact; Mining waste. |
| Ano: 2015 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/449 |
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| Gomes, Joao Bosco Vasconcellos; Araújo Filho, José Coelho de; Curi, Nilton. |
| Landscapes formed on Barreiras Formation sediments occupy signifi cant area on Brazilian territory. Many of these landscapes have highly intensive agricultural use, dueto favorable climate and topography. The objective of this study was to characterize and to compare soil profi les situated on non-dissected coastal plains from southern Bahia to Alagoas, occurring under natural vegetation (forest) and agricultural use. Seven soil profi leswere analyzed and data from six soil profi les obtained in other works were incorporated. Particle size distribution, organic C (OC), Al, Ca, Mg, Al+H, K, Na, P, Fe, Ti and Si were determined. Clay mineralogy was analyzed by X-ray diffraction. Soil profi les occur on fl at relief, have yellow color, weak small to medium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cohesive character; Barreiras Formation; Kaolinite Caráter coeso; Formação Barreiras; Caulinita. |
| Ano: 2012 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/324 |
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| Gonçalves, Fabricio Gomes; Carvalho, Acácio Geraldo de; Cardoso, Willian Vagner Matos; Rodrigues, Cleyton dos Santos. |
| Objetivou-se neste trabalho fazer um levantamento de broqueadores de madeira das famílias Cerambicydae, Lyctidae, Bostrichidae, Buprestidae e subfamílias Platypodinae e Scolytinae, em ambiente natural na Mata Atlântica e em plantio de eucalipto. Instalou-se entre os meses de abril e outubro, 20 armadilhas modelo Carvalho 47 adaptado, distantes 50 m umas da outras. Estas foram instaladas a 1,3 m do solo e iscadas com etanol (92,8º), sendo cinco por ambiente: fragmento de Mata Atlântica (borda e interior); plantio de eucalipto (borda e interior). Coletou-se um total de 1.797 indivíduos, em coletas semanais matutinas. O talhão de eucalipto apresentou maior número de indivíduos em ambos ambientes analisados (992 indivíduos). A subfamília Scolytinae foi a mais... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Madeira; Resistência natural; Armadilha etanólica Wood; Natural resistence; Ethanol trap. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/499 |
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| Registros recuperados: 587 | |
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