Consulta: subjectFacets:"Tropical rain forest"
Registros recuperados: 37
Data/hora: 10/06/2024 14:54:32

The Multiple Use of Tropical Forests by Indigenous Peoples in Mexico: a Case of Adaptive Management
Provedor de dados: 7
Autores: Moguel, Patricia; ;.
The quest for an appropriate system of management for tropical ecosystems necessitates that ecologists consider the accumulated experiences of indigenous peoples in their long-term  management of local resources, a subject of current ethnoecology. This paper provides data and empirical evidence of an indigenous multiple-use strategy (MUS) of tropical forest management existing in Mexico, that can be considered a case of adaptive management. This conclusion is based on the observation that some indigenous communities avoid common modernization routes toward specialized, unsustainable, and ecologically disruptive systems of production, and yet probably achieve the most successful tropical forest utilization design, in terms of biodiversity conservation,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive management; Ethnoecology; Indigenous peoples; Mexico; Multiple use; Tropical rain forest.
Ano: 2003

GPS and GIS Methods in an African Rain Forest: Applications to Tropical Ecology and Conservation
Provedor de dados: 7
Autores: Dominy, Nathaniel J; University of Hong Kong; njdominy@hkusua.hku.hk; Duncan, Brean; Dynamac Corporation, Kennedy Space Center; DuncaBW@kscems.ksc.nasa.gov.
Since the completion of the Navstar Global Positioning System (GPS) in 1995, the integration of GPS and Geographical Information Systems (GIS) technology has expanded to a great number of ecological and conservation applications. In tropical rain forest ecology, however, the technology has remained relatively neglected, despite its great potential. Notwithstanding cost, this is principally due to (1) the difficulty of quality satellite reception beneath a dense forest canopy, and (2) a degree of spatial error unacceptable to fine-scale vegetation mapping. Here, we report on the technical use of GPS/GIS in the rain forest of Kibale National Park, Uganda, and the methodology necessary to acquire high-accuracy spatial measurements. We conclude that the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Kibale National Park; Uganda; Biodiversity conservation; Canopy interference; Differential correction; Frugivores; Geographic information systems; Global positioning system; Seed dispersal; Spatial ecology; Tropical rain forest; Vegetation mapping.
Ano: 2001

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45 (Manaus-AM).
This project has by objective the quantification of water and nutrient fluxes in an experimental plantation, which is composed of different monoculture and polyculture systems with mainly perennial crops, as well as in primary and secondary forest at EMBRAPA-CPAA (Manaus, AM, Brasil). The flux measurements are expected to provide information about the efficiency with which the different land use systems exploit the available resources (water, nutrients) on the infertile soils of the area and minimize unproductive losses, e.g., through leaching. Efficient resource utilization is seem as a procondition of sustainable land use on this site.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Água; Cultivo Multiplo; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Agroforestry; Land use; Multiple cropping; Nutrients; Soil; Water.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668143

Modificações de algumas características químicas e físicas de um Latossolo Amarelo álico, por efeito de queima e processos de desmatamento.
Provedor de dados: 14
Autores: BASTOS, J. B.; WILMS, F. W. W.; TEIXEIRA, L. B.; CESAR J.
O desmatamento na Amazônia brasileira vem sendo feito sem a preocupação sobre as modificações que ocorrem no solo pelo uso de máquinas pesadas e queima da vegetação. Essa preocupação motivou a realização de um estudo para avaliar a mudança de alguns parâmetros físicos e químicos do solo, quando submetidos a processos de desmatamento e queima.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Tropical rain forest; Burn; Soil compactation; Chemicophysical properties; Environmental deterioration.; Compactação do Solo; Desmatamento; Deterioração do Solo; Floresta Tropical Úmida; Propriedade Físico-Química; Queimada.; Deforestation.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665061

Fast soil solution nutrient and water dynamics in top- and subsoil.
Provedor de dados: 14
Autores: RENCK, A.; LEHMANN, J.; KAISER, K.; MARQUES, J.; TEIXEIRA, W. G.
Study for find out the short-term dynamics of applied fertilizer. In a soil pit a data logger system connected to tensiometers and TDR was installed up to a depth of 3.5m under pueraria in an agroforestry system (cupuacu, peach palm, Brazil nut, urucum). After a rainfall event, the soil water suction at 0.1m depth increased immediately, and fast responses were seen even up to a depth of 0.9m. This result may indicate that nutrients may be leached very fast even in these soil with high clay contents. The N concentrations in the soil solution relevantly increased at 0.1m depth during the same time period, as shown for peach palm. First, the ammonium concentrations increased, but nitrate contents followed rapidly indicanting a fast nitrification in the...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Floresta Tropical Úmida; Relação Solo-Água; Soil water.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668344

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45.
This second annual report of the project summarizes the activities between January and December 1996. During this year, the project left the preparotory stage of purchasing, importing and installing equipment and entered into the stage of routine data collection and analysis.The report is divided into two parts. In the main part, the project team is presented and its acitivities during the year 1996 are briefly summarized. The annexes give detailed accounts of selected research acitivities of the project. Despite numerous problems, all project activities were in principle successful, and there were no major changes to the time plan of the project. The root distribution studies were completed. Significant progress was made in soil physical studies, soil...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Area abandonada; Agrofloresta; Fluxo; Brasil; Amazonas; Tropical rain forest; Agroforest; Fluxes; Analysis; Água; Análise; Conservação do Solo; Floresta Tropical Úmida; Nutriente; Environmental degradation; Nutrients; Soil conservation; Water.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667417

Calibração da técnica de Time Domain Reflectometry (TRD) para avaliação da umidade do solo, em um Latossolo Amarelo, textura muito argilosa, com diferentes valores de densidade aparente do solo - avaliação no campo.
Provedor de dados: 14
Autores: TEIXEIRA, W. G.; FACCIN, O. P.; AZEVEDO, C. P. de; HUWE, B.; SCHROTH, G.
Avaliação de umidade volumetrica do solo pela técnica de time Domain Reflectometry (TDR) para Latossolo Amarelo (Xanthic ferralsol - FAO) textura muito argilosa, com diferentes valores de p. Foram determinados os coeficientes de determinacao ajustada (R2) e o erro padrao da media. Realizou-se um ajuste por regressao multipla para P e E, selecionando-se as variaveis que contribuiam significativamente para o modelo por procedimentos de selecao stepwise. Como a variacao dos valores de p esta diretamente relacionada ao uso do solo (especie presente e o manejo praticado), foram observadas importantes diferencas entre as P das areas cultivadas e as da floresta primaria. Os valores reduzidos de P proxima as plantas de pupunha (Bactris gasipaes H.B.K.) em relacao...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Propriedade fisica; Fluxo; Brasil; Amazonas; Tropical rain forest; Moisture; Fluxes; Água; Bactris Gasipaes; Cupuaçu; Floresta Tropical Úmida; Kudzu; Pueraria Phaseoloides; Pupunha; Solo; Theobroma Grandiflorum; Umidade; Uso da Terra; Density; Land use; Physical properties; Soil; Water.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667398

Recuperação de áreas degradadas e abandonadas, através de sistemas de policultivo.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23 (Manaus-AM).
Manejo da area experimental, compreendendo: limpezas, podas, tratamentos fitossanitarios, adubacoes e colheita das plantas. Estudos de fitopatologia: observacoes continuas sobre a incidencia de doencas nas plantas, registro da incidencia da vassoura-de-bruxa no cupuacu, assim como adocao de medidas de controle, quando necessario. Estudos da variabilidade do cupuacu envolvendo a variabilidade das plantas nos diferentes sistemas de cultivo. Estudos da biologia do solo: analises de amostras do solo para quantificar a variabilidade de fungos micorrizicos vesicular-arbusculares na area experimental, na capoeira e na floresta primaria. Estudos de vegetacao: avaliacao dos tipos de vegetacao envolvendo a caracterizacao, o desenvolvimento e a identificacao das...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Tropical rain forest; Reclamation; Sustainability; Árvore Frutífera; Biologia do Solo; Cultivo Multiplo; Desenvolvimento Sustentável; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Micorriza; Recuperação do Solo; Agroforestry; Environmental degradation; Forest trees; Fruit trees; Multiple cropping; Soil biology; Vesicular arbuscular mycorrhizae.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667908

Relatorio de viagem - 25/11 a 28/11 de 1997.
Provedor de dados: 14
Autores: AZEVEDO, C. P. de.
Relato sobre a participacao no Seminario/Workshop Manejo de Florestas Naturais na Amazonia - MFNA, Belem, PA, 1997.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Tropical rain forest; Management; Floresta Tropical Úmida; Manejo.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665655

Soil fauna and litter decomposition in primary and secondary forests and a mixed culture system in Amazonia.
Provedor de dados: 14
Autores: HÖFER, H.; MARTIUS, C.; BECK, L.; GARCIA, M. V. B.
Este relatório representa um relato das atividades efetuadas no segundo ano do projeto como também dos resultados obtidos dos dados de 1997-1998 e da primeira serie de experimentos de decomposição com sacos de liteira (serrapilheira). Baseado nos resultados ainda preliminares, as áreas de estudo podem ser organizadas numa série, começando da área de floresta primária FLO via um dos locais de plantação, POC, até o local de floresta secundária, SEC, e o segundo local de plantação, POA.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Decomposição; Floresta Tropical Úmida; Matéria Orgânica; Solo; Degradation; Organic matter; Soil.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668179

Investigations on tree species suitable for the recultivation of degraded land areas in central Amazonia.
Provedor de dados: 14
Autores: SHIFT ENV 42/2 (Manaus-AM).
During the first phase of the project (january 1, 1995 until april 30, 1998), the influence of the water and element supply of tree different plantation systems on the growth and wood formation of eight native tree species (Swietenia macrophylla, Carapa guianensis, Cedrela odorata, Dipterex odorata, Hymenaea courbaril, Ceiba pentandra, Virola surinamensis, Tabebuia heptaphylla) was investigated. In 1998, the data were analyzed. The results subsequently served as a basis for the second phase of the project (comp. chapter 5) which should give deeper insight into the relationship between exogenous and endogenous input, the plant metabolism, and the wood formation and wood quality of plantation-grown trees. due to the results obtained in these studies in the...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Reclation; Forestr trees; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Environmental degradation; Multiple cropping.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668164

Soil fauna and litter decomposition in primary and secondary forests and a mixed culture system in Amazonia.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 52.
The first months of the year were dedicated to preparatory work in Germany and in Brazil. In July we finished the unexpectedly time-and cost-intensive installation of a generator and no break system to maintain the functioning of extraction and analyzing equipment (Kempson and Berlese-extractor, C/N-analyzer and Infra-Red-Gasanalyzer IRGA) during the very frequent breakdowns of the power supply in the laboratory of the EMBRAPA institute. On 23/24 July the joint "central sampling program of macro-and mesofauna, oligochaeta and microflora which includes field and laboratory work was successfully tested. On 27 october the first litterbag series with 1008 litterbags containing air-dried Vismia-litter to evaluate site-specific decomposition rates was...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Tropical rain forest; Cultivo Multiplo; Decomposição; Fauna Edáfica; Floresta Tropical Úmida; Matéria Orgânica; Degradation; Forest litter; Multiple cropping; Soil fauna.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667795

Litter quality effects on decomposition by diplopodes and 15N recovery of central Amazonian agroforestry tree species.
Provedor de dados: 14
Autores: SEITZ, D.; LEHMANN, J.; GARCIA, M. V. B.; HAHAGARTH, W.; HOFFMANN, K.; ZECH, W.
Study to investigate the role of single soil fauna species in controlled lboratory incubation to describe litter decomposition in tropical agroforestry systems, in Manaus-AM (Brasil).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Fauna Edáfica; Floresta Tropical Úmida; Serapilheira; Agroforestry; Forest litter; Soil fauna.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669433

Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 42/2 (Curitiba-PR).
Project activities in 1999, in Manaus-AM(Brasil): water supply of the trees, carbohydrate supply of the trees, seed provenances, wood quality. After five years of experiments the investigations (1) the biomass production and nutrition of five plantation grown tree species, (2) the comparison of nutrient fluxes and grwoth dynamics of Carapa guianensis grown in monoculture and enrichment plantations, and (3) the study of cambial growth dynamics of three selected Meliaceae were terminated. In 1999 the data evaluation was carried out.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cedrela odorota; Brasil; Amazonas; Manaus; Tropical rain forest; Reclamation; Sustainability; Species; Plant water relations; Seed; Carbhoydrate content; Agrossilvicultura; Andiroba; Bertholletia Excelsa; Carapa Guianensis; Carboidrato; Castanha do Para; Cultivo Multiplo; Cumaru; Desenvolvimento Sustentável; Dipteryx Odorata; Essência Florestal; Floresta Tropical Úmida; Hymenaea Courbaril; Jatobá; Madeira; Mogno; Recuperação do Solo; Relação Água-Planta; Semente; Swietenia Macrophylla; Agroforestry; Forest trees; Multiple cropping; Soil; Wood.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669636

Rekultivierung Degradierter, Brachliegender monokulturflachen in Ausgewogene mischkulturflachen unter Besonderer berucksichtigung Bodenbiologischer Faktoren.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23/2 (Hamburgo, Alemanha).
Manejo da área experimental. Estudos comparativos de espécies de plantas comuns em floresta secundária. Comportamento produtivo do cupuaçu (Theobroma grandiflorum) em sistemas agroflorestais com níveis de adubação. Efeito de nível de adubação sobre a produção de urucum (Bixa orellana) em um sistema agroflorestal. Efeito de níveis de adubação no crescimento e na produção de coqueiro (Cocos nucifera L.) em um sistema agroflorestal. Root distribution and root dynamics of useful tropical plants under agroforestry conditions. Theobroma grandiflorum (Willd. ex Spreng.) Schum., the cupuacu-tree: additional use option and agro-ecology. Dynamics of three vegetation types on the Shift-area at the Embrapa Amazônia Ocidental, Manaus. Spatial and temporal patterns of N...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Reclamation; Cultivo Multiplo; Deterioração do Solo; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Environmental degradation; Multiple cropping.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668178

Número de amostras simples de solo para avaliação da fertilidade em alguns ecossistemas amazônicos.
Provedor de dados: 14
Autores: TEIXEIRA, L. B.; RANZANI, G.; ESCOBAR, J. R.
A analise dos solos das areas de mata, mata recem queimada e pastagem de Brachiaria humidicola teve por finalidade determinar o numero minimo de amostras de solo necessarias para perfazer uma amostra composta, que seja representativa para fins de analise da fertilidade do solo. As areas amostradas acham-se estabelecidas em Latossolo Amarelo muito argiloso e com relevo suave-ondulado. Os resultados mostraram ser necessario coletar, na profundidade de 0cm-20cm seis, sub-amostras para areas de mata, 64 para areas de mata recem queimada e 43 para areas de pastagens para obtencao de uma amostra composta representativa a um nivel de 95% de probabilidade estatistica.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Analise solo; Brasil; Amazonas; Tropical rain forest; Soil testing.; Fertilidade do Solo; Floresta Tropical Úmida.; Sampling; Soil fertility.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665467

Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 42-2.
In cooperation with the Embrapa Amazonia Ocidental in Manaus (Amazonas, Brasil) and three German projects (ENV 23, ENV 45, ENV 52), in the year 2000 we especially investigated (1) photosynthesis and carbohydrate allocation and (2) the plant-water relationships of the selected tree species. Special emphasis was given to the three species of the family Meliaceae. Comparative experiments have been done for monoculture, polycultures, enrichment cultures, and primary forests.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Recuperaco do solo; Agrofloresta; Especie florestal; Fotossinte; Brasil; Amazonas; Tropical rain forest; Reclamation; Sustainability; Species; Plant water relations; Andiroba; Árvore Florestal; Carapa Guianensis; Carboidrato; Cedrela Odorata; Cedro; Cultivo Multiplo; Desenvolvimento Sustentável; Deterioração do Solo; Floresta Tropical Úmida; Mogno; Relação Água-Planta; Swietenia Macrophylla; Uso da Terra; Agroforestry; Carbohydrates; Environmental degradation; Forest trees; Land use; Multiple cropping; Photosynthesis.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/670721

Recuperação de áreas degradadas e abandonadas, através de sistemas de policultivo.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23 (Manaus-AM).
Atividades de manejo da area experimental. Dados observados na Estacao de Climatologia do projeto SHIFT em 1996. Incidencias de doencas. Observacao e identificacao de insetos coletados em culturas da area experimental do projeto SHIFT. Avaliacao de cupuacu (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) do uso potential das sementes. Composicao de comunidades de fungos micorrizicos arbusculares em ecossistemas naturais e agricolas da Amazonia. Regeneracao da vegetacao espontanea na area experimental do SHIFT. Seringueira: crescimento em perimetro do caule. Comportamentos das especies florestais estabelecidas nos sistemas 2, 3 e 4. Efeito da adubacao e da inoculacao com fungos micorrizicos vesicular-arbuscular (FMVA) na producao da pupunha (Bactris...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Bertholletia escelsa; Sucessao; Brasil; Amazonas; Tropical rain forest; Reclamation; Bactris Gasipaes; Bixa Orellana; Carapa Guianensis; Cultivo Multiplo; Deterioração do Solo; Espécie; Essência Florestal; Floresta Tropical Úmida; Hevea; Micorriza; Performance; Recuperação do Solo; Schizolobium Amazonicum; Swietenia Macrophylla; Theobroma Grandiflorum; Vegetação; Agroforestry; Ecological succession; Environmental degradation; Forest trees; Multiple cropping; Soil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667332

Recomposição florestal: cultivo do jequitibá-rosa (cariniana legalis).
Provedor de dados: 14
Autores: REGO, G. M.; POSSAMAI, E.
bitstream/item/68751/1/CPATC-CIR.-TEC.-25-01.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Jequitibá-rosa; Mata atlântica; Espécies nativas; Produção de muda; Tropical rain forest; Regeneration; Atlantic forest.; Cariniana Legalis; Essência Florestal; Lecythidaceae; Regeneração Natural.; Reflorestamento; Forest trees.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/370829

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45 (Manaus-AM).
This is the third annual report of the project summarizing the results of 1997. The results of the biomass determination and nutrient uptake are included which were conducted during 1996/97. First results from stand hydrology (stemflow, throughfall) and soil nitrogen dynamics are incorporated. The report is devided into two parts. In the main part, the project team is presented and is activities throughout the year 1997 are briefly summarized. The annexes give detailed information on selected research activities of the project. The research programme could be conducted according to the schedule outlined in previous report. This detailed and integrated analyses of the soil nutrient and water dynamics is yet to be done. This will involve mathematical...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Água; Balanço Hídrico; Biomassa; Floresta Tropical Úmida; Nutriente; Solo; Transporte de Nutriente; Uso da Terra; Biomass; Land use; Nutrient uptake; Nutrients; Soil; Water; Water balance.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667941

Aproveitamento de areas abandonadas na Amazonia ocidental atraves de sistemas agrossilviculturais.
Provedor de dados: 14
Autores: GASPAROTTO, L.; MACEDO, J. L. V. de; LIEBEREI, R.; MORAES, C. R. A.; ARAUJO, R. C.; MORAES, V. H. F.; SILVA JUNIOR, J. P. da; LIMA, R. M. B.
No presente trabalho sao descritos alguns sistemas agrossilviculturais promissores para a regiao, que estao sendo desenvolvidos para a recuperacao das areas degradas.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Agrofloresta; Fruteira; Brasil; Amazonas; Tropical rain forest; Soil deterioration; Reclamation; Agroforest.; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo.; Forest trees; Fruit crops; Multiple cropping.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665679

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45/2.
In this study, we present the effects of different fruit and timber tree species in a multistrata agroforestry system in comparison to secondary vegetation and primary forest sites on inorganic and organic P pools of a Ferralsol in the Amazon basin. The S pools were also assessed, but could not be presented here due to the length of this contribution.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Tropical rain forest; Água; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Amazonia; Agroforestry; Land use; Nutrients; Soil; Water.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666355

Soil termites in primary forest, secondary forest and an agroforestry plantation system in central Amazonia.
Provedor de dados: 14
Autores: MARTIUS, C.; GOMES, E.; GARCIA, M. V. B.
Litter and soil termites were collected with soil cores (21cm diameter) in a primary forest site, a secondary forest site and two sites of a polyculture plantation system in central Amazonia (Brazil), in three-monthly intervals from 1997 to 1999. Termite genus diversity, abundance and biomass all were highest in the primary forest. The values in the secondary forest were half those of the primary forest, and they were lowest in the plantation systems, indicating that the latter sites may suffer from functional constraints concerning the process of organic residue decomposition.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Agrossilvicultura; Biomassa; Cultivo Multiplo; Cupim de Montículo; Decomposição; Fauna Edáfica; Floresta Tropical Úmida; Isoptera; Matéria Orgânica; Serapilheira; Termitidae; Agroforestry; Biomass; Degradation; Forest litter; Multiple cropping; Organic matter; Soil fauna.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669561

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45/2.
The experiments started during the first year of the second phase of this project were continued, such as studies about the effect of trees on soil phosphorus and sulfur abailability, dissolved organic nutrients in rainfall, throughfall, stemflow and soil solution. Additionally, we focussed on the effects of cover crops on tree nutrition, soil nutrient and water dynamics. Soil nitrogen and phosphorus uptake was investigated using different N-15 and P-32 tracer experiments. The fate of fertilizer nitrogen was studied with N-15 labelled ammoniumsulfate in plant, soil, soil extracts and soil solution. In laboratory incubations, the effect of leaf quality on decomposition and incorporation of nutrients into soil organic matter was studied as affected by soil...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Água; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Land use; Nutrients; Soil; Tropical rain forests; Water.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669428

Litterfall and litter nutrient content in two Brazilian Tropical Forests
Provedor de dados: 88
Autores: MORAES,REGINA MARIA DE; DELITTI,WELINGTON BRAZ CARVALHO; STRUFFALDI-DE VUONO,YARA.
Litterfall and transfer of nutrients was estimated in two tropical coastal forests of Brazil - the Atlantic and the Restinga Forests at Cardoso Island, São Paulo. Samples were collected monthly, from June 1990 to May 1991, using thirty 0.25 m2 traps. There were significant differences in litter production between the Atlantic Forest (6.3 t.ha-1.year-1) and the Restinga Forest (3.9 t.ha-1.year-1). Litterfall was continuous throughout the year with maximum in the beginning of the rainy season in both sites. The annual return of mineral elements through litter in the Atlantic Forest was (kg.ha-1): 101.8 N, 3.8 P, 20.3 K, 60.0 Ca, 18.0 Mg, and 14.6 S and in the Restinga Forest was: 27.5 N, 1.0 P, 6.5 K, 30.0 Ca, 10.9 Mg, and 6.6 S. The return, although small,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Litterfall; Litter nutrient content; Nutrient cycling; Tropical rain forest; Restinga forest.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100002

Mosquito community composition in dynamic landscapes from the Atlantic Forest biome (Diptera, Culicidae)
Provedor de dados: 92
Autores: Guedes,Mário Luís Pessôa; Navarro-Silva,Mário Antônio.
Mosquito community composition in dynamic landscapes from the Atlantic Forest biome (Diptera, Culicidae). Considering that some species of Culicidae are vectors of pathogens, both the knowledge of the diversity of the mosquito fauna and how some environment factors influence in it, are important subjects. In order to address the composition of Culicidae species in a forest reserve in southern Atlantic Forest, we compared biotic and abiotic environmental determinants and how they were associated with the occurrence of species between sunset and sunrise. The level of conservation of the area was also considered. The investigation was carried out at Reserva Natural do Morro da Mina, in Antonina, state of Paraná, Brazil. We performed sixteen mosquito...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Insecta; Malaria; Shannon trap; Tropical rain forest.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000100014

A quantitative analysis of forest fragmentation in Los Tuxtlas, southeast Mexico: patterns and implications for conservation
Provedor de dados: 97
Autores: MENDOZA,EDUARDO; FAY,JOHN; DIRZO,RODOLFO.
Habitat loss is a critical threat to tropical biodiversity and its quantification constitutes a central conservation issue. Typically, assessments have been based on deforestation rates statistics. However, this overlooks the effects brought about by the spatial reconfiguration of the remaining habitat: fragmentation. We present an analysis of fragmentation in a Neotropical site aimed at: (a) devising a protocol for its quantification, (b) using such protocol to provide insights on the ecological consequences of fragmentation, (c) exploring its applicability to address the hypothesis that forest size-inequality decreases with elevation, an indicator of habitat accessibility. We applied the Gini coefficient (G) and the Lorenz curve to analyze fragment-size...
Tipo: Journal article
Palavras-chave: Edge effect; Fragment shape; Gini coefficient; Lorenz curve; Tropical rain forest.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000300008

Soil profile, relief features and their relation to structure and distribution of Brazilian Atlantic rain forest trees
Provedor de dados: 63
Autores: Guilherme,Frederico Augusto Guimarães; Ferreira,Tiago Osório; Assis,Marco Antonio; Torrado,Pablo Vidal; Morellato,Leonor Patrícia Cerdeira.
In tropical forests, the environmental heterogeneity can provide niche partitioning at local scales and determine the diversity and plant species distribution. Thus, this study aimed to investigate the variations of tree species structure and distribution in response to relief and soil profile features in a portion of the largest remnant of Brazilian Atlantic rain forest. All trees ³ 5 cm diameter at breast height were recorded in two 0.99 ha plots. Topographic survey and a soil characterization were accomplished in both plots. Topsoil samples (0-20 cm) were taken from 88 quadrats and analyzed for chemical and particle size properties. Differences for both diversity and tree density were identified among three kinds of soils. A canonical correspondence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical rain forest; Catena; Tree diversity; Niche partitioning; Tropical soils.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100009

Description of the puparium of Cyphomyia aurifrons Wiedemann and Cyphomyia picta Schiner (Diptera, Stratiomyidae, Clitellariinae) from Ilha da Marambaia, Rio de Janeiro, Brazil
Provedor de dados: 104
Autores: Xerez,Roberto de; Viana,Gustavo Glória; Pujol-Luz,José Roberto.
The puparia of Cyphomyia aurifrons Wiedemann, 1830, and Cyphomyia picta Schiner, 1868 are described for the first time. The larvae were collected under the bark of fallen trees in a tropical rain forest at Ilha da Marambaia, State of Rio de Janeiro, Brazil, (23º04'15"S, 43º53'59"W, sea level, approximately 42 Km²). Some biological notes are also presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soldier flies; Taxonomy; Tropical rain forest.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000100014

A NEW RECORD FOR THE MILK FROG Trachycephalus coriaceus (ANURA: HYLIDAE) FROM TELES PIRES RIVER, SOUTH AMAZONIA, BRAZIL
Provedor de dados: 37
Autores: FERREIRA,Vanessa Gonçalves; THALER,Rafaela; FOLLY,Henrique; DA SILVA,Leandro Alves.
ABSTRACT Herein, we report a new record of the milk frog Trachycephalus coriaceus for the Brazilian southern Amazonia and provide an updated geographic distribution map. We collected one specimen of T. coriaceus on 8 november 2016, during a nocturnal survey inside a dense ombrophilous forest in the right bank of the Teles Pires River, municipality ofJacareacanga, southern of Pará State. The record of T. coriaceus to Jacareacanga is the first to the State. The disjoint geographic distribution of this species along de Amazonia may just reflect the paucity of amphibian knowledge throughout this biome and the difficulty to detect this species in the field, given its explosive reproductive behavior.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Amphibia; Hydroelectric power plants; Pará state; Tropical rain forest.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000200283

Vertical distribution of epiphytic bryophytes in Atlantic Forest fragments in northeastern Brazil
Provedor de dados: 39
Autores: Oliveira,Hermeson Cassiano de; Oliveira,Sylvia Mota de.
ABSTRACT The microclimatic gradient established from the forest understory to the canopy provides a range of different conditions for the establishment of bryophytes along the height of a tree. We investigated epiphytic bryophyte communities of four fragments of Atlantic Forest with the aim of describing their vertical zonation and assessing differentiation among the communities of the different fragments. In each fragment, five host trees were selected from which bryophyte samples were collected in four height zones from the base to the canopy. Furthermore, 10 plots were demarcated in each fragment where bryophytes were collected from the understory. In total, 114 bryophyte species were found on the 20 sampled phorophytes, plus an additional 51 species in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canopy; Ecology; Liverworts; Mosses; Tropical rain forest.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400609

Cuticular n-alkane in leaves of seven Neotropical species of the family Lecythidaceae: a contribution to chemotaxonomy
Provedor de dados: 39
Autores: Silva,Rejane Maria da; Ribeiro,Rayane de Tasso Moreira; Souza,Renata Janaína Carvalho de; Oliveira,Antônio Fernando Morais de; Silva,Suzene Izídio da; Gallão,Maria Izabel.
ABSTRACT Biosynthesized from very long-chain fatty acid wax precursors, n-alkanes make a valuable contribution to the taxonomy of plants. The alkane components of foliar epicuticles of seven Neotropical species of Lecythidaceae were investigated: Bertholletia excelsa, Cariniana legalis, Couroupita guianensis, Eschweilera alvimii, Eschweilera ovata, Gustavia augusta and Lecythis pisonis. Specimens were collected in the metropolitan area of Recife, Pernambuco, and their n-alkane fractions were analyzed by gas chromatography. The chemical relationships among the species were then evaluated using cophenetic correlation and UPGMA. Among the seven species, a total of 15 n-alkanes, with 21-35 carbon atoms, were identified and formed a consistent group of B....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Lecythidaceae; Neotropics; Taxonomy; Tropical rain forest; Wax.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100137

Arbuscular mycorrhizal fungal communities in soils under three phytophysiognomies of the Brazilian Atlantic Forest
Provedor de dados: 39
Autores: Duarte,Lorrane Marques; Bertini,Simone Cristina Braga; Stürmer,Sidney Luiz; Lambais,Marcio Rodrigues; Azevedo,Lucas Carvalho Basilio.
ABSTRACT Arbuscular mycorrhizal fungi (AMF) play an important role in plant community productivity and structure, and so studying the factors that affect the diversity and structure of this fungal community is important for understanding their ecology in tropical forests. We investigated AMF spore communities and root colonization under three forest phytophysiognomies (Restinga Forest, REF; Lowland Ombrophilous Dense Forest, LLF; and Montane Ombrophilous Dense Forest, MTF). Spore abundance was lowest in LLF and highest in REF, with no statistical differences relative to MTF. Spore diversity indices and root colonization rates were not statistically different among the phytophysiognomies. However, principal components analysis revealed that AMF community...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arbuscular mycorrhiza; Glomeromycotina; Hierarchical partitioning; Plant community; Soil attributes; Soil microbiology; Tropical rain forest.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100050

Spatial resolution influence on the identification of land cover classes in the Amazon environment
Provedor de dados: 42
Autores: PONZONI,FLÁVIO J.; GALVÃO,LÊNIO S.; EPIPHANIO,JOSÉ C.N.
To evaluate the role played by the spatial resolution in distinguishing land cover classes in the Amazon region, different levels of spatial resolution (60, 100, 120, 200 and 250 meters) were simulated from a Landsat_5 Thematic Mapper (TM) image. Thematic maps were produced by visual interpretation from the original (30 x 30 meters) and simulated set of images. The map legend included primary forest, old and young woody secondary succession, and non-forest. The results indicated that for the discrimination between primary forest and non-forest, spatial resolution did not have great influence for pixel size equal or lower than 200 meters. The contrary was verified for the identification of old and young woody secondary vegetation due to their occurrence in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spatial resolution; Remote sensing; Amazon region; Thematic maps; Tropical rain forest.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000400011

All green, but equal? Morphological traits and ecological implications on spores of three species of mosses in the Brazilian Atlantic forest
Provedor de dados: 42
Autores: MACIEL-SILVA,ADAÍSES S.; SILVA,FLÁVIA C.L. DA; VÁLIO,IVANY F.M.
Spores of the tropical mosses Pyrrhobryum spiniforme, Neckeropsis undulata and N. disticha were characterized regarding size, number per capsule and viability. Chemical substances were analyzed for P. spiniforme and N. undulata spores. Length of sporophyte seta (spore dispersal ability) was analyzed for P. spiniforme. Four to six colonies per species in each site (lowland and highland areas of an Atlantic Forest; Serra do Mar State Park, Brazil) were visited for the collection of capsules (2008 – 2009). Neckeropsis undulata in the highland area produced the largest spores (ca. 19 µm) with the highest viability. The smallest spores were found in N. disticha in the lowland (ca. 13 µm). Pyrrhobryum spiniforme produced more spores per capsule in the highland...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryophytes; Histochemistry; Life histories; Spore size; Spore production; Tropical rain forest.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301249

Diversity, community structure and conservation status of an Atlantic Forest fragment in Rio de Janeiro State, Brazil
Provedor de dados: 49
Autores: Cysneiros,Vinicius Costa; Mendonça-Junior,Joaquim de Oliveira; Gaui,Tatiana Dias; Braz,Denise Monte.
The State of Rio de Janeiro still holds unknown portions of the Atlantic Forest, which represent gaps in the knowledge of this ecosystem. Paracambi and neighbor municipal districts comprise a vast stretch of virtually unknown forest that makes up part of the Serra do Mar biodiversity corridor. The following study describes the tree community structure in a stretch of the ombrophilous Atlantic Forest, in the Parque Natural Municipal do Curió (Curio MNP), Paracambi, Rio de Janeiro, which serves as the basis to evaluate species diversity and conservation status. The altitudes in the area ranges from 100 to 690 m and the climate varies from mild subtropical to tropical hot and humid. Forty plots (10x10m) were randomly placed along the area, where all the stems...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical rain forest; Phytosociology; Ecological succession; Serra do Mar biodiversity corridor; Curio Municipal Natural Park- Paracambi.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200201

Eusocial Apidae in tropical insular region
Provedor de dados: 52
Autores: Lorenzon,Maria Cristina Affonso; Conde,Marilena de Menezes Silva; Barbosa,Celso Guimarães.
This study examined species richness and relative abundance of eusocial Apidae in an insular region of rain-forest, southeastern Brazil. Sampling took place during one year, using an standardized method with entomological net, at sites of secondary growth habitats surrounded by Atlantic rain-forest. Thirteen species of eusocial Apidae were netted at flowers, over 80% of the captured individuals were meliponine species, although the presence of Apis mellifera, commonly dominant in Brazilian habitats. Foraging activity of these bee species were essentially non-seasonal, apparently affected by high humidity. The patterns in abundance and species richness observed in Ilha Grande differed with other studies conducted at tropical islands, which were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical rain forest; Meliponine species; Bee community; Niche.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600007