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| Mattos, Patricia Póvoa de; Santos, Andreia Taborda dos; Rivera, Hugo; Oliveira, Yeda Maria Malheiros de; Rosot, Maria Augusta Doetzer; Garrastazu, Marilice Cordeiro. |
| Araucaria Forest is one of most threatened phyto-physiognomies in the Atlantic Forest domain,presenting great ecological-economical importance. Nevertheless, there are still lacks of knowledge concerning growth and dynamic of important species, as Araucaria angustifolia. The objective of this work was to recover the past growth of Araucaria angustifolia, native from Caçador, SC, Brazil, by measuring growth rings and to estimate the average periodic diametric increment. The growth rings were counted and measured, using a stereoscope microscope, in increment cores of 0.5 cm collected from 32 adult trees. The measurements were done with LINTAB measuring table, with 0.01 mm of precision. The samples sizes were irregular, varying from 4.2 to 20.2 cm long. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rings; Araucaria Forest; Periodic increment.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/124 |
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| Mattos, Patricia Póvoa de. |
| A biomassa florestal vem sendo apontada como alternativa com grande potencial para complementar a matriz energética mundial. O vasto campo ainda por explorar pela pesquisa resulta em trabalhos que muito contribuem para a otimização do uso desses recursos.Nesse número especial da Pesquisa Florestal Brasileira, são apresentados 11 estudos, oito artigos técnico-científicos, dois artigos de revisão e uma nota técnica, focando temas como biocombustíveis sólidos, briquetagem, carvão vegetal, avaliação da matriz energética e diferentes temas relacionados a produção de eucaliptos e espécies nativas.A PFB consolida, em sua 68a edição e 31o volume, sua contínua busca por excelência do conteúdo de temas florestais e a abrangência na divulgação, destacando-se a... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/353 |
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| Mattos, Patricia Póvoa de; Santos, Andreia Taborda dos; Oliveira, Yeda Maria Malheiros de; Rosot, Maria Augusta Doetzer. |
| In the present work the dendrochronological potential of six species of the Araucaria Forest is analyzed. The trunks of 20 trees were collected in Candoi, State of Parana, Brazil, from an area that belongs toELEJOR, Centrais Elétricas do Rio Jordão, for the following species: Araucaria angustifolia, Clethra scabra, Cedrela lilloi, Ocotea porosa, Podocarpus lambertii and Sebastiania commersoniana (3 to 6, from each species). The trunks were sawed, and at breast height a sample was taken from the center of the board, from bark to bark, crossing the pith, for macroscopic analysis. These samples were dried and polished, making possible the recognition and measurement of growth rings The historical climatic data series were provided by SIMEPAR, the State... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rings; Precipitation; Temperature; Forest dynamics; Atlantic Rain Forest Anéis de crescimento; Precipitação pluviométrica; Temperatura; Dinâmica de florestas; Mata Atlântica. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/141 |
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| Mattos, Patricia Póvoa de; Seitz, Rudi Arno; Salis, Suzana Maria de. |
| The information on the influence of environmental factors upon growth rate of trees is very important for the development of forestry management programs. The aim of this work was to determine the age and radial increments of the trees. Samples were collected, in July 1996, in Nhumirim Farm, Embrapa Pantanal, located in Nhecolândia sub-region, Pantanal, Corumbá - Mato Grosso do Sul. The disks from 19 trees species were collected in areas with Arboreous Savanna, Forested Savana and Semi-deciduous Dry Forest. The trees were selected by good canopy formation. Traversal section samples of the stem were collected of each tree at 0.3 m height, to determinate age and increment of the first five years of the trees, and at 1,30m height, to evaluate the growth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dendrochronology; Tropical trees; Diameter increment; Growth rings Dendrocronologia; Árvores tropicais; Incremento diamétrico; Anéis de crescimento. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/241 |
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| Santana, Dalva Luiz de Queiroz; Zanol, Keti M. R.; Botosso, Paulo Cesar; Mattos, Patricia Póvoa de. |
| The injuries of Ctenarytaina spatulata Taylor, 1977, were characterized through observations in field, laboratory and greenhouse. The first injuries of C. spatulata in Eucalyptus grandis are caused during oviposition. At the point where the egg is inserted, a small black spot appears, which may grow larger, causing the bud death. The insect eliminates large amount of honeydew, accumulating on leaves and apical parts, which starts the proliferation of sooty mold, and fitopathogenic fungi. Leaves of the attacked lants become deformed, smaller than the normal ones, distorted, or with flaws among the ribs and sooty mold reducing the photosynthetic capacity. Due to damages provoked by the bites, oviposition, sooty mold accumulation and other fungi,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest pests; Eucalyptus pests; Exotic pests; Psyllid Pragas florestais; Pragas exóticas; Pragas do eucalipto; Psilídeo.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/237 |
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| Curto, Rafaella De Angeli; Mattos, Patricia Póvoa de; Braz, Evaldo Muñoz; Netto, Sylvio Pellico; Zachow, Randolf. |
| The aim of this work was to evaluate the radial and longitudinal variations of wood specific gravity in an overstocked stand of Araucaria angustifolia, with 65 years. The stand was located in the National Forest of Açungui, Campo Largo, Parana State, Brazil, with thinning recorded between 1970 and 1980, without subsequent thinnings. We selected three trees for each diameter class: 10-30 cm, 30-50 cm and 50-70 cm. To the longitudinal analysis, we collected discs from seven heights (0, 20, 40, 60, 80 and 100% of commercial stem and at 1.3 m). The barks were removed and it was obtained opposite wedges until pith and five samples were taken in radial direction from each disk. In general, there was an increase of wood specific gravity in radial direction. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quality of wood; Radial and longitudinal variations; Competition Engenharia florestal; Tecnologia da madeira Qualidade da madeira; Variações radial e longitudinal; Competição. |
| Ano: 2016 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/963 |
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