Consulta: subjectFacets:"Silviculture"
Registros recuperados: 26
Data/hora: 02/06/2024 10:32:36

A Multicriteria Risk Analysis to Evaluate Impacts of Forest Management Alternatives on Forest Health in Europe
Provedor de dados: 7
Autores: Duncker, Philipp; Albert-Ludwigs-University Freiburg, Institute for Forest Growth;; Gardiner, Barry; Forest Research, Northern Research Station;; Grodzki, Wojciech; Forest Research Institute, Department of Forest Management in Mountain Regions;; Langstrom, Bo; The Swedish University of Agricultural Sciences, Department of Ecology;; Netherer, Sigrid; University of Natural Resources and Life Sciences, Department of Forest and Soil Sciences, Institute of Forest Entomology, Forest Pathology, and Forest Protection;; Nicoll, Bruce; Forest Research, Northern Research Station;; Orazio, Christophe; IEFC - EFI Atlantic;; Schelhaas, Mart-Jan; Centre for Ecosystem Studies, Alterra;; Tojic, Karl; Albert-Ludwigs-University Freiburg, Institute for Forest Growth;.
Due to climate change, forests are likely to face new hazards, which may require adaptation of our existing silvicultural practices. However, it is difficult to imagine a forest management approach that can simultaneously minimize all risks of damage. Multicriteria decision analysis (MCDA) has been developed to help decision makers choose between actions that require reaching a compromise among criteria of different weights. We adapted this method and produced a multicriteria risk analysis (MCRA) to compare the risk of damage associated with various forest management systems with a range of management intensity.  The objective was to evaluate the effect of four forest management alternatives (FMAs) (i.e., close to nature, extensive management with combined...
Tipo: Peer-Reviewed Reports
Palavras-chave: Abiotic; Biotic; Damage; Hazard; MCRA; Silviculture.
Ano: 2012

Extrato arbóreo nas pastagens: o caso da agricultura familiar (comunidade de Benfica, sul do Pará).
Provedor de dados: 14
Autores: SANTOS, A. M. dos; MITJA, D.; CARVALHO, D.
bitstream/CPAC-2009/27725/1/p2006_53.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Feed legumes.; Árvore; Leguminosa Forrageira; Pastagem; Silvicultura.; Pastures; Silviculture; Trees.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570130

Silvicultura de cinco espécies arbóreas da Amazônia: indicações de usos de seus produtos madeireiros e não-madeireiros.
Provedor de dados: 14
Autores: CARVALHO, J. O. P. de; CARVALHO, M. S. P. de; BAIMA, A. M. V.; MIRANDA, I. L.; SOARES, M. H. M.
bitstream/item/57645/1/CPATU-ComTec90.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Espécie florestal; Produto florestal não madeireiro; Produto florestal madeireiro; Ipê-amarelo; Copaifera multifuga; Caesalpimaceae; Papilionaceae; Hymenaeae courbaril; Brasil; Forest; Nonwood forest products.; Bagassa Guianensis; Cumaru; Copaíba; Ecologia Florestal; Dipteryx Odorata; Floresta; Jatobá; Moraceae; Silvicultura; Regeneração Natural; Tabebuia Serratifolia; Tatajuba.; Bignoniaceae; Amazonia; Forest trees; Forest ecology; Silviculture; Wood products.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375531

Atividade madeireira como uma alternativa viável para a utilização sustentada dos recursos florestais na Amazônia brasileira.
Provedor de dados: 14
Autores: SILVA, J. N. M.; UHL, C.
Tipo: Parte de livro
Palavras-chave: Floresta sustentável; Exploração madeireira; Manejo florestal; Brasil; Sustainability; Forestry production; Produção Florestal; Silvicultura; Uso da Terra; Amazonia; Forest management; Land use; Logging; Silviculture.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/394890

Expansão da silvicultura no Brasil Central: estudo de caso em Rio Verde (GO).
Provedor de dados: 14
Autores: BUSCHINELLI, C. C. de A.; COSTA, B. M. R.
Resumo: O município de Rio Verde, em Goiás, ocupa hoje uma posição de destaque no cenário agropecuário nacional. O uso da terra em sua extensão territorial passou a sofrer mudanças profundas na segunda metade do século XX, principalmente a partir da década de 1970, na esteira da modernização da agricultura brasileira. A sua grande extensão territorial e alta capacidade produtiva agropecuária são alguns dos fatores que motivaram a instalação de grandes empresas e conglomerados do agronegócio em Rio Verde, o que lhe garantiu essa referida posição central no quadro regional. Assim, o objetivo fundamental deste trabalho foi averiguar se esse crescimento agroindustrial foi acompanhado de um expressivo aumento da silvicultura no município, sobretudo de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Silvicultura; Eucalipto; Uso da Terra; Sistema de Informação Geográfica; Silviculture; Eucalyptus; Land use; Land use change; Geographic information systems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126480

Aspectos silviculturais da Teca (Tectona grandis L.) em Rondônia.
Provedor de dados: 14
Autores: VIEIRA, A. H.; MARTINS, E. P.; PEQUENO, P. L. de L.; LOCATELLI, M.
Neste trabalho foram avaliados e descritos alguns parâmetros referente ao manejo da Teca que podem influenciar na qualidade e quantidade da madeira produzida em um povoamento.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Teak; Rondônia; Amazônia Ocidental; Silvicultura; Teca; Tectona Grandis; Silviculture.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/703796

Parâmetros genéticos da densidade básica da madeira de Pinus oocarpa.
Provedor de dados: 14
Autores: MORAES NETO, S. P. de; MELO, J. T. de.
bitstream/CPAC-2010/30253/1/bolpd-212.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Silvicultura; Genética vegetal.; Silviculture; Genetics; Pinus.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571876

Eficiência de anelamento aplicado como tratamento silvicultural em florestas manejadas na Amazônia Ocidental.
Provedor de dados: 14
Autores: OLIVEIRA, L. C. de; SÁ, C. P. de; RIBAS, L. A.; ARAUJO, H. J. B. de; FIGUEIREDO, E. O.; FURTADO, S. C.
O manejo florestal em florestas primárias na Amazônia é, na maioria das vezes, limitado a sistemas silviculturais baseados no diâmetro mínimo de corte (DMC) e na extração de um número relativamente pequeno de espécies, reduzindo a população de árvores comerciais. A utilização de técnicas de impacto reduzido minimiza os impactos da extração, mas não necessariamente melhoram as baixas taxas de crescimento apresentadas por muitas espécies comerciais, nem asseguram o retorno dos volumes explorados para o próximo ciclo de corte. Por outro lado, estudos conduzidos nos trópicos têm mostrado que a aplicação de tratamentos silviculturais nas árvores do futuro, como cortes de liberação, corte de cipós e anelamento de competidoras, pode aumentar significativamente...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Manejo florestal; Ringing; Amazonia Occidental; Seringal Iracema II; Lábrea (AM); Amazonas; Amazônia Ocidental; Western Amazon; Explotación forestal; Manejo forestal.; Extração da madeira; Anelagem.; Administração florestal; Silvicultura; Forest management; Silviculture; Logging.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697544

Parâmetros genéticos da densidade básica da madeira de Pinus caribaea var. hondurensis.
Provedor de dados: 14
Autores: MORAES NETO, S. P. de; DUBOC, E.
bitstream/CPAC-2010/30254/1/bolpd-213.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Silvicultura; Genética vegetal.; Silviculture; Genetics; Pinus.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571877

Uso de biossólido em plantios florestais.
Provedor de dados: 14
Autores: MORAES NETO, S. P. de; ABREU JÚNIOR, C. H.; MURAOKA, T.
ABSTRACT: With the increase of the population density in the cities, a great amount of residual waters passed to be generated. The usual practical ones of disposal of the sewage sludge, as the "sanitary and controlled embankment" or the "oustings the opened sky", are alternative of cost to each day more raised or have potential to produce impacts ambient undesirable, beyond constituting, frequently, in focus of problems of public health, through contamination of superficial and underground waters, and of the proliferation of animals and insects vectors of illnesses. Processes come being perfected to get a sewage sludge with biological, physical and chemical characteristics desirable for its use in agricultural areas, as biosolid. Data on the effect of its...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Fertilização; Lodo de esgoto.; Árvore; Silvicultura; Solo.; Fertilizer application; Soil; Sewage sludge; Silviculture; Trees.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/572254

Aroeira: caracteristicas e aspectos silviculturais.
Provedor de dados: 14
Autores: MELO, J. T. de.
bitstream/item/101472/1/doc-38.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Centro de Pesquisa Agropecuária dos Cerrados; Planaltina-DF; Savannah.; Astronium Urundeuva; Aroeira; Cerrado; Madeira; Silvicultura.; Silviculture; Wood.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547912

Comportamento silvicultural de Sclerolobium paniculatum (Taxi branco) no cerrado amapaense.
Provedor de dados: 14
Autores: CASTRO, A. W. V. de; YARED, J. A. G.; ALVES, R. N. B.; SILVA, L. S.; MEIRELLES, S. M. L. B.
O objetivo deste trabalho foi avaliar o comportamento silvicultural de Sclerolobium paniculatum (Taxi branco), juntamente com as espécies Bagassa guianensis (Tatajuba), Carapa guianensis (Andiroba), Copaifera sp. (Copaiba), Cordia goeldiana (Freijo), Didymopanax morototoni (Morototo), Dipterix odorata (Cumaru), Hymenae courbaril (Jutai-acu), H. parviflora (Jutai-mirim), Jacaranda copaia (Parapara), Simaruba amara (Marupa), Swietenia macrophylla (Mogno), Tabebuia serratifolia (Pau d'arco) e Vismia guianensis (Lacre) em área de cerrado do Amapá.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Comportamento; Taxi-branco; Brasil; Amapá.; Cerrado; Silvicultura.; Sclerolobium Paniculatum; Brazil; Silviculture; Savannas; Yields.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341868

Biodiversidade e produção sustentável de alimentos e fibras nos Cerrados: anais.
Provedor de dados: 14
Autores: SIMPÓSIO SOBRE O CERRADO, 8.; INTERNATIONAL SYMPOSIUM ON TROPICAL SAVANNAS, 1., 1996, Brasilia, DF.
O Brasil e um dos paises com maior diversidade genetica, respondendo por cerca de 30% das plantas e especies animais que ocorrem no mundo. Dentre os diferentes biomas brasileiros, os Cerrados, com seus 207 milhoes de hectares, apresenta uma grande diversidade faunistica e floristica em suas diferentes fisionomias vegetais. Ate meados deste seculo esta regiao era considerada como marginal para producao agricola, no entanto, devido ao desenvolvimento da pesquisa e de tecnologias agricolas que viabilizaram sua utilizacao em bases economicas, hoje ela e responsavel pela producao de cerca de 35% de graos e carnes do pais. O modelo de ocupacao da terra utilizado, baseado no uso intensivo de insumos e maquinas pesadas, se de um lado, no ultimos vinte anos,...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agricultura sustentada; Fibres; Sustainability; Plant production; Feed crops; Socioeconomic organization; Brasil; Japão; BIBJICACPAC; Alimento; Cerrado; Fertilidade do Solo; Fibra; Floresta; Manejo do Solo; Melhoramento Vegetal; Pastagem; Planta Forrageira; Produção; Produção Animal; Produção Vegetal; Recurso Natural; Silvicultura; Cooperação Internacional; Pesquisa; Biodiversidade; Desenvolvimento Socio-Econômico; Animal production; Biodiversity; Food production; Forestry; Natural resources; Pastures; Plant breeding; Savannas; Silviculture; Soil fertility; Soil management.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551822

Qualidade de mudas de moringa sob diferentes níveis de nutrientes aplicados via fertirrigação
Provedor de dados: 190
Autores: Pereira, Kleane Targino Oliveira; Oliveira, Francisco de Assis de; Cavalcante, Antonio Lucieudo Gonçalves; Dantas, Renata de Paiva; Oliveira, Mychelle Karla Teixeira de; Costa, Jessilanne Plínia Barbosa de Medeiros.
O objetivo do presente trabalho foi avaliar a qualidade de mudas de moringa em função da posição das sementes no fruto e da concentração de nutrientes na solução de fertirrigação. Realizou-se um experimento seguindo o delineamento inteiramente casualizado, com os tratamentos arranjados em esquema fatorial 3 x 4, sendo três posições de sementes no fruto (basal, mediana e apical) e quatro doses de nutrientes (0, 50, 100 e 150% da dose padrão), com quatro repetições. Foram avaliados os seguintes parâmetros: altura (ALT), diâmetro do coleto (DC), número de folhas, matéria seca da parte aérea (MSPA), matéria seca do sistema radicular (MSSR) e matéria seca total, relação ALT/DC, MSPA/MSSR e índice de qualidade de Dickson. Os dados foram submetidos à análise de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Engenharia Florestal  Produção de mudas Moringa oleifera; Nutrição vegetal; Silvicultura Moringa oleifera; Plant nutrition; Silviculture.
Ano: 2016
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1038

Second Generation Half-sib Progenies Wood Production of Grevillea in the Region of Avaré - SP
Provedor de dados: 190
Autores: Martins, Emerson Gonçalves; Neves, Edinelson José Maciel; Aoki, Hideyo; Martins, Kelly Geronazzo.
The Grevillea robusta A. Cunn is utilized for coffee plantation shading, crops growing and pasture shading, apiculture, ornamentation and wind breaks. It is also used to produce sawn wood. One test of 28 second generation half-sib progenies was planted in Forestry Institute of São Paulo, with 20°03’S latitude and 48°54’W logitude geographic coordenates and 630m of altitude. The main objectives of this paper were to select genetic material capable to produce more volume of wood. The total heigth and diameter at breast height (DBH) were measured on the three yars old second generation half-sib progenies test. The volume was calculated and the results led to the following conclusion: The best second generation progeny was the number 12, which came from an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grevillea robusta; Forest seeds; Silviculture; Reforestation Sementes florestais; Silvicultura; Reflorestamento; Grevillea robusta.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/222

Soil properties and variability of tracheid dimensions and wood density in Pinus caribaea var. hondurensis
Provedor de dados: 190
Autores: Corrêa, Robson Schaff; Bellote, Antonio Francisco Jurado.
The understanding of wood quality in relation to different forest sites is of fundamental relevance in current timber market. There are only few studies available concerning soil and wood quality of tropical pinots. So, the goal of this work was to characterize tracheid dimensions and wood density of Pinus caribaea var. hondurensis, correlating these variables with soil properties at different sites. Discs were taken at 1.3 m height and comprised two radial samples in each of the four dominant trees removed at four different sites. Measurements for wood density were made from the third to the eleventh year old rings, and the measurement of tracheid dimensions were made in the fourth, eighth and eleventh year sold rings. The soil, collected in the canopy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil fertility; Soil physics; Silviculture; Tropical pines; Wood anatomy; Wood quality Fertilidade do solo; Física do solo; Silvicultura; Pinheiros tropicais; Anatomia da madeira; Qualidade da madeira.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/195

Second Generation of Grevillea: Wood Production in Londrina-PR Region
Provedor de dados: 190
Autores: Martins, Emerson Gonçalves; Neves, Edinelson José Maciel; Duleba, Nicole; Domakoski, Bernardo Skroch.
Grevillea robusta Cunn is not only utilized for coffee plantation shading, ornamentation and wind breaks. It is also used in apiculture and different wood utilities. The purpose of this study was to identify genetically superior individuals for wood volume production in order to select material for future seed orchards in the Londrina region of Northern Paraná State, Brazil. The genetic material tested was 37 second generation half-sib progenies from a provenance trial located on Presidente Castelo Branco county, also in the State of Paraná. The experiment was planted in EMBRAPA’s Maravilha farm with the following geographic coordinates: 23°23’30"S and 51°11’05"W. Progenies were evaluated in a experimental design in the form of eight replications and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forest seeds; Silviculture; Reforestation; Brazil Sementes florestais; Silvicultura; Reflorestamento; Grevillea robusta.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/231

Streamside management zone (SMZ) efficiency in herbicide retention from simulated surface flow
Provedor de dados: 87
Autores: Matos,A.T.; Pinho,A.P.; Costa,L.M.; Morris,L.A.
Plot-scale overland flow experiments were conducted to evaluate the efficiency of streamside management zones (SMZs) in retaining herbicides in runoff generated from silvicultural activities. Herbicide retention was evaluated for five different slopes (2, 5, 10, 15, and 20%), two cover conditions (undisturbed O horizon and raked surface), and two periods under contrasting soil moisture conditions (summer dry and winter wet season) and correlated to O horizon and site conditions. Picloram (highly soluble in water) and atrazine (moderately sorbed into soil particles) at concentrations in the range of 55 and 35 µg L-1 and kaolin clay (approximately 5 g L-1) were mixed with 13.000 liters of water and dispersed over the top of 5 x 10 m forested plots. Surface...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pollution control; Silviculture; Pesticides; Runoff.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582008000100014

Estimating Production of Forest Cooperative Members
Provedor de dados: 31
Autores: Hoffman,   Benjamin F., Jr.
This study develops methods of estimating annual marketings by members of forestry cooperatives in order to formulate a long range business plan for the cooperative. A reliable prediction of total annual sales by the cooperative is possible, but individual product estimates are subject to significant errors. The report details cautions concerning the development and implementation of projections and makes specific recommendations. The system also permitted estimation of landowner service needs.
Tipo: Report
Palavras-chave: Silviculture; Forestry cooperatives; Forestry management; Marketing; Agribusiness.
Ano: 1985
URL: http://purl.umn.edu/52029

Optimal Forest Rotations with Environmental Values and Endogenous Fire Risk
Provedor de dados: 31
Autores: Daigneault,   Adam J.; Sohngen,   Brent; Miranda,   Mario J.
This paper develops a model that solves for the optimal economic harvest rotation problem to maximize revenue of an even-aged forest plantation when there is a risk of a catastrophic forest fire.  The paper also investigates the feasibility of using fire prone stands for carbon sequestration and estimates the effects that it would have on the optimal management regime and rotation age empirically using a typical Douglas-fir stand in the Pacific Northwest.  The model incorporates risk-reducing management practices that allow risk and growth to be endogenous, and the optimal rotation model is solved using numerical simulation techniques. Results show that higher carbon prices increase the rotation length regardless of the probability of fire and that the...
Tipo: Conference Paper or Presentation
Palavras-chave: Carbon sequestration; Stochastic risk; Forest management; Optimal rotation; Silviculture; Forest fires; Climate change; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/9738

Feeding habits of the crab-eating fox, Cerdocyon thous (Carnivora: Canidae), in a mosaic area with native and exotic vegetation in Southern Brazil
Provedor de dados: 104
Autores: Rocha,Vlamir J.; Aguiar,Lucas M.; Silva-Pereira,José E.; Moro-Rios,Rodrigo F.; Passos,Fernando C.
Cerdocyon thous (Linnaeus, 1766) is the most widespread neotropical canid, most commonly inhabiting forested areas. This animal is a generalist omnivore that is able to use environments disturbed by human activities. The aim of this study was to describe its diet through the stomach content analysis of 30 samples obtained from specimens that were run over in a mosaic composed by Araucaria Pine Forest, Semidecidual Seasonal Forest, natural grasslands, and exotic vegetation. The items were quantified by frequency of occurrence (F.O.) and percentage of occurrence (P.O.). A total of 64 food items were found among 171 occurrences. According to F.O. method, plant items corresponded to 93.3% of the occurrences, followed by animal items (86.7%) and human rejects...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carnivorous; Diet; Exotic species; Frugivory; Neotropical canid; Silviculture.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000400003

Silvicultural performance of five forest species in the central Brazilian Amazon
Provedor de dados: 36
Autores: MACHADO,Murilo Rezende; CAMARA,Rodrigo; SAMPAIO,Paulo de Tarso Barbosa; FERRAZ,João Baptista Silva; PEREIRA,Marcos Gervasio.
ABSTRACT Planting of forest species of timber interest helps to reduce the deforestation pressure on the Amazon forest, promotes sustainable development of the producing region and generates ecological benefits. The objective of this work was to evaluate the survival rate and growth of four native (Swietenia macrophylla, Parkia decussata, Dipteryx odorata and Jacaranda copaia) and one exotic (Acacia mangium) species in monospecific plantations (spacing of 2 x 2 m) established on areas previously used for grazing, in Itacoatiara, State of Amazonas, Brazil. When the trees were four years old, we collected biometric data [height at 1.30 m (DBH, cm), crown projection area (CPA, m2), total height (Ht, m), commercial cylinder volume (Vcyl, m3 ha-1)], and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dendrometric variables; Monospecific plantings; Silviculture; Tree growth.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100010

First record of Amphipoda Talitroides topitotum (Burt, 1934) (Gammaridea, Talitridae) in the State of Espírito Santo, Brazil - doi: 10.4025/actascibiolsci.v35i1.12447
Provedor de dados: 3
Autores: Eutrópio, Frederico Jacob; Universidade Vila Velha; Krohling, Werther; Universidade Vila Velha.
Talitroides topitotum (Amphipoda) was introduced in Brazil by silviculture activities. Currently the species is distributed in the states of Paraná, Rio  de Janeiro and São Paulo. This paper describes the species’ occurrence in the state of Espírito Santo. The objective of this study was to determine the interference of the edge effect on community structure of macroinvertebrates associated with leaf litter, where a T. topitotum female specimen was observed in coffee cultivations in March 2008.  
Palavras-chave: Amphipod terrestrial; Bioinvasion; Litterfall; Silviculture.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/12447

Nutritional evaluation of Guanandi seedlings fertilized with sewage sludge
Provedor de dados: 53
Autores: Brandani,Carolina Braga; Kühl,Amanda Santos; Ilario,Vicenzo Enrico; Pitombo,Leonardo Machado; Ferreira-Filho,Pedro José; Pereira,Elisabete Alves; Oliveira,Luciana Camargo; Carmo,Janaina Braga do.
ABSTRACT The generation of sewage sludge and the concern with their fate has greatly increased. The objective of this study was to assess the effects of using in natura (SS) or composted sewage sludge (SSC) in comparison with mineral fertilizer (MF) application and a control (CT) treatment on the nutritional status of Guanandi (Calophyllum brasiliense Cambess.) seedlings in a typical Red Oxisol in Brazil. The leaf-level nutritional responses of the Guanandi seedlings to these three different fertilizers and the control were evaluated at 90 and 180 days after planting. Nutritional data of leaf variables were compared between the treatments by means of one-way analysis of variance using the F test and a pair-wise comparison of means done by Tukey’s test. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calophyllum brasiliense; Organic fertilizer; Mineral nutrition; Oxisol; Silviculture; Brazilian tree.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000200253

Genetic parameters estimates and visual selection for leaves production in Ilex paraguariensis
Provedor de dados: 53
Autores: Sturion,José Alfredo; Stuepp,Carlos André; Wendling,Ivar.
ABSTRACT The selection of yerba mate superior genotypes, based on each plant leaf weight, is based on genetic parameters obtained from experimental plantations and it is practically impossible from the fourth year of age. Therefore, we estimate genetic parameters and check the feasibility of selection through notes and weight estimates of each tree at 18.5 years of age. The genetic material consists of a combined trial of provenances and progenies of half-sibs with 140 progenies from 7 provenances, installed in Ivaí, Paraná, Brazil, in a randomized block design with 10 repetitions. The genetic control of leaf production is of low magnitude (ĥ2a= 0.175042 ± 0.0393) revealing high influence of the environment. The additive genetic correlations between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic correlations; Yerba mate; Silviculture; Progeny trial.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000400492

Early individual growth of Eucryphia cordifolia and Laurelia sempervirens planted under different competition conditions in south-central Chile
Provedor de dados: 118
Autores: Uteau,Daniel; Donoso,Pablo J.
Few studies have focused on forest research in plantations with Chilean native species midtolerant to shade. Such species may use resources that intolerant species cannot, increasing the total site productivity. This study aimed to define the factors that explain the growth of Euctyphia cordifolia Cav. and Laurelia sempervirens (Ruiz et Pavón) Tul., two midtolerant species of southern Chile. We sought to determine the effect on these species of competition in mixed-species plantations. At the time of this study, the plantations were 4 to 22 years old . Two competition indices were analyzed for each species: the Growing Space Polygon (GSP) and the Canopy Overlap (CO). The GSP proved to be very useful in predicting the growth in the older plantations where...
Tipo: Journal article
Palavras-chave: Competitionindex; Forest; Growth; Growing space polygon; Crown competition; Midtolerant species; Silviculture.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100008