Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 12
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A dinâmica da água em microbacias hidrográficas reflorestadas com eucalipto Ciências Agrárias
Oleriano, Eliseu dos Santos; Dias, Herly Carlos Teixeira.
The importance of the water in the current geo-political context turns it into a research theme that focuses on conserving its quality and improving its use conditions in certain systems. The hidrologic cycle consists of water exchanges among rivers, lakes, and oceans, as well as atmosphere and soil. The species of the gender eucalyptus possess a very fast growth rate in relation to native species, what causes a large demand for water, even though their water use efficiency is better. As well as any vegetable species, the eucalyptus uses water to satisfy their physiologic demands, promoting its growth. As a result eucalyptus promotes reduction in the flow of water in watercourses. Areas covered with forest plantations, besides improving the landscape as a...
Tipo: Article Palavras-chave: Hidrologic cycle; Microbacia; Eucalipto; Florestas plantadas; Ciclo hidrológico; Small watershed; Eucalyptus; Forest plantation.
Ano: 2007 URL: http://hdl.handle.net/2315/102
Imagem não selecionada

Imprime registro no formato completo
A importância das plantações de eucalipto na conservação da biodiversidade. Repositório Alice
GABRIEL, V. de A.; VASCONCELOS, A. A.; LIMA, E. F. de; CASSOLA, H.; BARRETTO, K. D.; BRITO, M. C..
2013
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Eucalitpto; Eucalyptus; Espécie florestal; Espécie exótica; Conservação da biodiversidade; Manejo florestal; Fauna; Forest management; Forest plantation.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/969113
Imagem não selecionada

Imprime registro no formato completo
Ants obtained from trees of a "Jacareuba" (Calophyllum brasiliense) forest plantation in Central Amazonia by canopy fogging: first results Acta Amazonica
HARADA,Ana Yoshi; ADIS,Joachim.
Canopies of the locally occurring Amazonian tree species Calophyllum brasiliense. Camb. (Guttiferae, height 10 m) were fogged after dawn on the same day at five adjacent localities in a 20-year-old plantation at the Adolpho Ducke Forest Reserve near Manaus/Brazil, using natural pyrethrum (0.5%, 1.0%, 1.5%), Baythroid (0.3%) and diesel oil, respectively. The 1152 ants collected represented 52 species, 17 genera and five subfamilies. The highest number of ant species was obtained with the synthetic pyrethrum Baythroid 0.3% and with natural pyrethrum 1.5%. About 46% of the total ant species were only collected in the first hour after fogging, and 17% only during the second hour, after trees had been heavily shaken. About 73% of the total ant specimens dropped...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ants; Canopy fogging; Pyrethrum; Forest plantation; Amazon; Neotropics.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671998000300309
Imagem não selecionada

Imprime registro no formato completo
Avaliações de sítio e produtividade em plantios de Eucalyptus urograndis com 3 anos de idade em São Paulo, Brasil PFB - Pesquisa Florestal Brasileira
Andrade, Guilherme de Castro; Bognola, Itamar Antonio; Bellote, Antonio Francisco Jurado; Franciscon, Luziane; Waterloo, Maarten Johannes; Bruijnzeel, Leendert Adriaan.
No Brasil os plantios florestais ocupam 7 milhões de hectares que correspondem a 1% do território (68% com plantações de Eucalyptus e 25% com Pinus) O objetivo desse trabalho foi avaliar plantios de Eucalyptus urograndis. Estoques elevados de Ca e Mg no solo, sugerem uma lixiviação do calcário. A resistência do solo até os 60 cm de profundidade na linha de plantio foi menor do que na entrelinha, indicando que a subsolagem foi eficiente. Os valores de resistência do solo foram mais altos na entrelinha, distante 1 m da linha de plantio, até os 20 cm de profundidade, provavelmente pelo aumento da compactação na preparação da área. A biomassa da copa das árvores diferiu entre as classes de DAP, justificando o uso de equação para a sua estimativa. A variação...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest plantation; Biomass; Litter; Soil fertility; Soil strength Plantação florestal; Biomassa; Serapilheira Fertilidade do solo; Resistência do solo.
Ano: 2011 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/273
Imagem não selecionada

Imprime registro no formato completo
Desarrollo y verificación de concentraciones críticas y normas DRIS para brinzales y latizales de Pinus patula Schl. et Cham. Colegio de Postgraduados
Sánchez Parada, Agustina.
El diagnóstico nutrimental es una herramienta fundamental para el uso eficiente de fertilizantes. Ayuda a incrementar la productividad y a disminuir la contaminación de suelos y agua por exceso de fertilización. Se desarrollaron y verificaron concentraciones críticas y normas DRIS para árboles de P. patula Schl. et Cham. de aproximadamente 10 años de edad. Se generó una base de datos de 50 árboles de P. patula distribuidos en estados del centro de México. Las concentraciones críticas y normas DRIS se generaron a partir de los árboles de mayor incremento en diámetro. La verificación se realizó en dos plantaciones: (a) una plantación de 17 años de edad en Veracruz, la cual consistió en un experimento factorial 3×3×2 con 10 repeticiones por tratamiento, y (b)...
Palavras-chave: Nutrición vegetal; Fertilización química; Diagnóstico nutrimental; Plantación forestal; Plant nutrition; Chemical fertilization; Nutrient diagnosis; Forest plantation; Forestal; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/1877
Imagem não selecionada

Imprime registro no formato completo
Growth, biomass, and energy quality of Acacia mangium timber grown at different spacings PAB
Tonini,Helio; Schwengber,Dalton Roberto; Morales,Marina Moura; Magalhães,Ciro Augusto de Souza; Oliveira,Jane Maria Franco de.
Abstract: The objective of this work was to assess the effect of spacing on the growth, biomass allocation, and wood quality for energy purposes of Acacia magium. A randomized complete block design was carried out with three replicates and five treatments consisting of trees planted at different spacings: 2.0x2.0, 2.5x2.5, 3.0x2.0, 3.0x2.5, and 3.0x3.0 m. At 67 months after planting, the following species parameters were evaluated: performance (mortality, diameter growth, height, bark factor, and bark and biomass volume yield) and wood energy quality (basic density, higher-calorific value, ash, fixed carbon, and volatile materials) through the analysis of variance. Plant spacing did not affect volume and biomass production per hectare nor wood quality for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Biomass accumulation; Energy productivity; Forest plantation; Roraima.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700791
Imagem não selecionada

Imprime registro no formato completo
Natural regeneration under reforestation of Araucaria angustifolia and Pinus sp. in Tunas do Paraná, PR, Brazil PFB - Pesquisa Florestal Brasileira
Carvalho, Joema; Velazco, Santiago José Elías; Pereira, Tiaro Katu; Galvão, Franklin.
This study aimed to assess the natural regeneration in stands of Araucaria angustifolia (PA) and Pinus sp. (PP) without management in Campinhos State Park, in the Municipality of Tunas do Paraná, Parana State, Brazil. Eighteen plots of 10 m2 were installed, 7 plots for PA and 11 for PP. All trees higher than 1.5 m were sampled and their circumference were measured at 1.30 m above ground level. In PA stand there were 586 individuals, corresponding to 67 species and 29 families and in PP stand 442 individuals of 58 species and 22 families were measured. The most important species in PA were Cordyline spectabilis, Lonchocarpus muehlbergianus and Clethra scabra; and in PP were C. spectabilis, Lonchocarpus sp.1 and Cupania vernalis. PA showed phytosociological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Native species; Forest plantation; Conservation unit engenharia florestal Espécie nativa; Plantio florestal; Unidade de conservação.
Ano: 2016 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/892
Imagem não selecionada

Imprime registro no formato completo
Nuevas tecnicas para la reflorestacion de la region semiarida del nordeste brasileiro. Repositório Alice
SILVA, H. D. da.
El presente trabajo relata las técnicas en desarrolo por el Programa Nacional de Investigación Forestal (PNPF), en el Centro de Investigación Agropecuaria del Trópico Semiárido (CPATSA), y las Empresas Estatales de Investigacion de Paraíba (EMEPA), de Rio Grande do Norte (ENPARN) y de Ceará (EPACE).
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Região semiárida; Captação de água; PNPF; Programa florestal; Leucena; Pau d''arco; Forest plantation; Reflorestamento; Eucalipto; Algaroba; Sabia; Irrigação; Pesquisa Florestal; Reforestation.
Ano: 1985 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061406
Imagem não selecionada

Imprime registro no formato completo
Stem and soil CO2 efflux responses of Pinus radiata plantations to temperature, season, age, time (day/night) and fertilization Ciencia e Investigación Agraria
Bown,Horacio E; Watt,Michael S.
Stem CO2 efflux is a highly variable component of the carbon budget of forest ecosystems. It reflects the balance between the CO2 respired by the living stem tissues, less the CO2 dissolved in the xylem sap moving upward in the transpiration stream, plus the CO2 transported from the roots and released at the stem. Although knowledge about such fluxes at different spatial and temporal scales has markedly increased, knowledge of the effects of silviculture treatments, such as fertilization, on stem CO2 effluxes are still limited, particularly when connecting above- and belowground processes. Using measurements obtained from twin plots (one control, one fertilized) installed in five-, 12- and 23-year-old stands of Pinus radiata, the objective of this study...
Tipo: Journal article Palavras-chave: Aboveground; Age; Belowground; CO2 efflux; Fertilization; Forest plantation.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000100009
Imagem não selecionada

Imprime registro no formato completo
The importance of eucalyptus plantations in biodiversity conservation PFB - Pesquisa Florestal Brasileira
Gabriel, Vagner de Araujo; Vasconcelos, André Antonio; Lima, Elson Fernandes de; Cassola, Heloiza; Barretto, Klaus Duarte; Brito, Mônica Cabello de.
In last decades, the increase of Eucalyptus plantations was relevant in Brazil, especially in the global scenario. Several studies showed that these cultures, especially those guaranteed by certification mechanisms, can bring social and environmental benefits. This paper presents data collected in the period 2002-2011, where we show richness data of plants, birds and mammals in eucalyptus plantation farms in Brazil. It is discussed the importance of these areas to biodiversity conservation, where have been recorded 1,320, 620 and 55 species of woody plants, birds and medium and large mammals, respectively. It was registered the occurrence of endangered plant species in the plantations understory: Araucaria angustifolia, Couratari asterotricha, Buchenavia...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest management; Forest plantation; Fauna Conservação da Biodiversidade; Engenharia Florestal; Conservação de Áreas Silvestres Manejo florestal; Floresta plantada; Fauna.
Ano: 2013 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/435
Imagem não selecionada

Imprime registro no formato completo
Turning Water into Carbon: Carbon sequestration vs. water flow in the Murray-Darling Basin AgEcon
Schrobback, Peggy; Adamson, David; Quiggin, John C..
Large scale forest plantations in the Murray-Darling Basin may be embraced as a carbon sequestration mechanism under a Carbon Pollution Reduction Scheme. However, increased tree plantation will be associated with reduced inflows to river systems because of increased transpiration, interception and evaporation. Therefore, an unregulated change in land management is most likely to have a dramatic impact on the water availability. This will exacerbate the impacts of climate change projected in the Garnaut Review. This paper examines the implications of unrestricted changes in land use. These results should suggest the true costs to society from carbon sequestration by determining the tradeoffs between timber production and agricultural products.
Tipo: Conference Paper or Presentation Palavras-chave: Murray-Darling Basin; Carbon sequestration; Forest plantation; Irrigated agriculture; Water flow; Trade-off; Resource /Energy Economics and Policy; Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/47616
Imagem não selecionada

Imprime registro no formato completo
ผลกระทบของการปลูกสวนป่าต่อลักษณะดินในพื้นที่ลาดชัน บริเวณดอยอ่างขาง จังหวัดเชียงใหม่ Thai Agricultural
Tawatchai Jamrassang.
Thesis (M.Sc. in Environmental Science)
Tipo: PhysicalObject Palavras-chave: Forest plantation; Soil properties; Slope land; Impact; Doi Angkhang; สวนป่า; ลักษณะดิน; พื้นที่ลาดชัน; พื้นที่ป่าเสื่อมโทรม; พื้นที่ทำการเกษตรแบบไร่เลื่อนลอย; คุณสมบัติดิน; การคัดเลือกพันธุ์ไม้; ดอยอ่างขาง.
Ano: 1996 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5473
Registros recuperados: 12
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional