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| Registros recuperados: 53 | |
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| KIILL, L. H. P.; MENEZES, E. A.. |
| Um dos maiores desafios para o desenvolvimento sustentável do Semi-Árido brasileiro é oferecer ao produtor opções que possam satisfazer suas necessidades socioeconômicas e que sejam adaptadas às difíceis condições ambientais da região. Neste sentido, pesquisas com espécies vegetais exóticas vêm sendo feitas, buscando alternativas viáveis para a região Semi-Árida brasileira. Nesta publicação, são descritas dez espécies. Para cada espécie, há informações contendo a descrição botânica, o nome científico, o nome vulgar, as formas de propagação, as pragas e doenças mais comuns e a utilização e o manejo cultural. O principal objetivo desta obra é, pois, divulgar informações sobre as espécies em destaque na região, as quais servirão de pesquisa e consulta para... |
| Tipo: Livro técnico (INFOTECA-E) |
Palavras-chave: Capim-búfel; Capim-urocloa; Leucena; Melancia forrageira; Região semi-árida; Planta nativa; Caatinga; Planta exótica; Botanica; Planta forrageira; Algaroba; Gliricidia; Gramínea Forrageira; Guandu; Milheto; Palma Forrageira; Sorgo; Vegetation; Vegetation types; Plant biology; Plant adaptation; Plant ecology. |
| Ano: 2005 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/155430 |
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| LIMA, J. R.; PAREYN, F. G. C.; DRUMOND, M. A.. |
| Árvore de porte médio a alto, com altura entre 5-20m. Caule com até 1m de diâmetro, casca espessa e acinzentada, copa com ramos terminais suberosos. Folhas compostas, digitadas, opostas cruzadas, de 5-7 folíolos oblongos, elípticos ou obovados, cartáceos de coloração verde claro. Inflorescência terminal, com internós alongados, eixo lepidoto, portando muitas flores. Flores tubulares de cor amarelo-ouro, com até 8cm de comprimento, cálice campanulado, bilabiado, lepidoto; corola amarela, com ou sem guias de néctar amarelo-escuro, 5-9cm de comprimento, infundibuliforme, glabro externamente e internamente. Fruto tipo síliqua, deiscentes, cilíndricos, de parede delgada, medindo 14-18,5cm de comprimento, contendo cerca de 80 sementes, rosadas, achatadas e aladas. |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Bignonia squamellulosa DC; Caraiberia; Caroba do campo; Cinco em rama; Ipê amarelo craibeira; Ipê amarelo do cerrado; Caatinga; Vegetação Nativa; Bignonia; Ipê Amarelo; Ipê; Bignoniaceae; Vegetation structure; Vegetation. |
| Ano: 2018 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103474 |
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| LIMA, J. L. S. de. |
| Nesta seção, e de forma seriada, informaremos sobre diversos aspectos das principais espécies componentes da flora das caatingas, enfatizando seus múltiplos usos. Detalharemos também seus nomes vernaculares e/ou vulgares, famrllas e respectivos gêneros e espécies, tendo em vista, principalmente, um público especial interessado nesses dados - professores, estudantes, agrônomos e técnicos agrícolas, leitores do jornal. |
| Tipo: Artigo de divulgação na mídia (INFOTECA-E) |
Palavras-chave: Astronium urundeuva Engl; Aroeira; Astronium Urundeuva; Caatinga; Flora; Vegetation. |
| Ano: 1983 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132350 |
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| REATTO, A.; MARTINS, E. de S.; CARDOSO, E. A.; SPERA, S. T.; CARVALHO JÚNIOR, O. A. de; GUIMARÃES, R.; FARIAS, M. F. R.; SILVA, A. V. da. |
| RESUMO: O local selecionado para este estudo foi a Bacia Hidrográfica do Lado do Descoberto, com água de drenagem de 42.021,4 há, pertencente à Área de Proteção Ambiental da Bacia do Rio Descoberto, Distrito Federal e Goiás (APA do Descoberto). Este estudo teve a finalidade de caracterizar as principais fitosifionomias do Alto Curso do Rio Descoberto, Distrito Federal e Goiás e correlacioná-las com suas respectivas classes de solos. Os resultados deste estudo também servirão para subsidiar o projeto desenvolvido pela Universidade de Brasília (UnB) em parceria com a Embrapa Cerrados: Integração de dados de geologia ambiental, de engenharia florestal e de política social aplicados ao estudo de assoreamento da represa do Descoberto, Distrito Federal. Foram... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Mapeamento; Rio Descoberto; Brasil; Mapping; Fertility.; Bacia Hidrográfica; Classificação do Solo; Fertilidade; Reconhecimento do Solo; Solo; Vegetação.; Brazil; Soil classification; Soil surveys; Vegetation; Watersheds.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569096 |
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| Samartin, Stephanie; Heiri, Oliver; Kaltenrieder, Petra; Kühl, Norbert; Tinner, Willy. |
| Vegetation and climate during the last ice age and the Last Glacial Maximum (LGM, similar to 23,000-19,000 cal BP) were considerably different than during the current interglacial (Holocene). Cold climatic conditions and growing ice-sheets during the last glaciation radically reduced forest extent in Europe to a restricted number of so-called "refugia", mostly located in the southern part of the continent. On the basis of paleobotanical analyses the Euganian Hills (Colli Euganei) in northeastern Italy have previously been proposed as one of the northernmost refugia of temperate trees (e.g. deciduous Quercus, Tilia, Ulmus, Fraxinus excelsior, Acer, Abies alba, Fagus sylvatica, Carpinus and Castanea) in Europe. In this study we provide the first... |
| Tipo: Text |
Palavras-chave: Chironomids; Refugia; Vegetation; Northern Italy; Mediterranean; Climate; Last Glacial; LGM; Heinrich events; Paleoecology; Paleoclimatology. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00421/53234/54773.pdf |
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| Beaudouin, Célia; Jouet, Gwenael; Suc, Jean-pierre; Berne, Serge; Escarguela, Gilles. |
| The composition of the glacial vegetation of southern French plains has been a matter of debate for several decades. Vegetation is considered as steppic according to French and Spanish lacustrine pollen records whereas cave deposits suggest the presence of mesothermophilous trees through the Last Glacial Maximum. In our paper, we display new palynological records from marine sediments of the Gulf of Lions. They indicate the presence of Abies, Picea and deciduous Quercus in the Gulf of Lions, certainly located in the drainage basins of the Pyreneo-Languedocian rivers. These populations that were sensitive to short climatic events during Marine Isotopic Stage 2 could have been linked to northeastern Spanish and southeastern French relicts already evidenced... |
| Tipo: Text |
Palavras-chave: Mediterranean Sea; Pleistocene; Climate; Vegetation. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2804.pdf |
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| Lopes Dos Santos, Raquel A. |
| NW Africa and SE Australia are regions which are particularly vulnerable to climate change. In this thesis, organic proxies are used from marine sediment cores to reconstruct past environmental conditions from these areas. In sediments from NW Africa, the UK'37 showed an efficient proxy for sea surface temperature (SST) reconstruction, while the TEXH86 reconstructed thermocline temperatures. The UK'37 and TEXH86 records for the last 192 ka showed that periods of reduced AMOC coincide with a reduction in the vertical temperature gradient. Thus, variations in AMOC strength is a driver of the thermocline structure in the tropical Atlantic. Three independent organic proxies (UK’37,TEXH86 and LDI) were used to reconstruct SSTs for the last 135 ka in sediments... |
| Tipo: Text |
Palavras-chave: Keywords: organic proxies; Paleoclimate; NW Africa; SE Australia; SST; Productivity; Vegetation. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00494/60594/64078.pdf |
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| Labourg, Pierre Jean; Soriano-sierra, Eduardo-jean; Auby, Isabelle. |
| Maritime salt-marshes of the Eyre's delta located in Arcachon Bay (South-West Atlantic coast of France) were studied following to a recent work of Soriano-Sierra (1992). In the se tidal areas salt marshes develop at the top of mud-flats covered by Zostera noltii beds, and in the vicinity of fish ponds who are lagoonal impoundments of the 18th century. Along the Eyre's estuary where salinity is reduced by seepage of fresh water from the land, Spartina maritima and other halophilic plants tend to be replaced by a taU marsh of Phragmites communis, Scirpus maritimus and Juncus gerardii. The number of species or species richness is varying: S = 21 in the area l ("La Boucle") S = 26 ("Malprat") and S = 24 ("Comprian"). Rare species are present like Spartina... |
| Tipo: Text |
Palavras-chave: Végétation; Zone intertidale; Delta; Vegetation; Delta; Schorre. |
| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00152/26284/24367.pdf |
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| Castaneda, Isla S.; Caley, Thibaut; Dupont, Lydie; Kim, Jung-hyun; Malaize, Bruno; Schouten, Stefan. |
| In this study we investigate Pleistocene vegetation and climate change in southern East Africa by examining plant leaf waxes in a marine sediment core that receives terrestrial runoff from the Limpopo River. The plant leaf wax records are compared to a multi-proxy sea surface temperature (SST) record and pollen assemblage data from the same site. We find that Indian Ocean SST variability, driven by high-latitude obliquity, exerted a strong control on the vegetation of southern East Africa during the past 800,000 yr. Interglacial periods were characterized by relatively wetter and warmer conditions, increased contributions of C3 vegetation, and higher SST, whereas glacial periods were marked by cooler and arid conditions, increased contributions of C4... |
| Tipo: Text |
Palavras-chave: Vegetation; Africa; N-alkane; Pollen; Subtropical Front; Mid-Brunhes. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00345/45601/45215.pdf |
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| Naughton, F; Bourillet, Jean-francois; Fernanda, M; Turon, J; Jouanneau, J. |
| Vegetation and quantitative climate reconstructions from a northwestern France shelf core (VK0358Bis) show orbital and suborbital climate variability for the last 8850 years in this region. A long-term cooling trend in summer temperatures, marked by gradual temperate and humid forest decline, parallels cooling in Greenland and the decrease of mid-latitude summer insolation reduction until at least 2000 cal. yr BP. At the long-term scale, the lowering in seasonal contrast revealed by vegetation changes follows the increase of precession. Corylus woodlands spread at the expense of deciduous Quercus forest, between 8740 and 8390 cal. yr BP, linked with the high seasonality conditions that, counterbalancing the long-term astronomical forcing trend, were... |
| Tipo: Text |
Palavras-chave: Bay of Biscay; France; Europe; Vegetation; Marine core; Corylus; 8.2 kyr event; Millennial scale climate variability; Long term cooling; Holocene. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-4205.pdf |
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| Daniau, Anne-laure; Desprat, Stéphanie; Aleman, Julie C.; Bremond, Laurent; Davis, Basil; Fletcher, William; Marlon, Jennifer R.; Marquer, Laurent; Montade, Vincent; Morales-molino, César; Naughton, Filipa; Rius, Damien; Urrego, Dunia H.. |
| The Earth has experienced large changes in global and regional climates over the past one million years. Understanding processes and feedbacks that control those past environmental changes is of great interest for better understanding the nature, direction and magnitude of current climate change, its effect on life, and on the physical, biological and chemical processes and ecosystem services important for human well-being. Microfossils from terrestrial plants – pollen, microcharcoal and phytoliths – preserved in terrestrial and marine sedimentary archives are particularly useful tools to document changes in vegetation, fire and land climate. They are well-preserved in a variety of depositional environments and provide quantitative reconstructions of past... |
| Tipo: Text |
Palavras-chave: Pollen; Microcharcoal; Phytolith; Terrestrial and marine sedimentary archives; Vegetation; Fire; Middle Pleistocene; Last glacial period; Holocene. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00485/59705/83610.pdf |
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| Hill, Christine M.. |
| This study reviewed case studies and research focussed on the issues of managing native vegetation, the problems of salinity and the relationship between the two. It then addressed the economic feasibility of six tree planting configurations to reduce the impacts of salinity. The method used a spreadsheet model showing the benefits and costs of various planting configurations over a 30-year time span. This model can be used to assess the monetary net benefit/costs of reducing recharge of a vegetation management proposal. Inputs can be varied to tailor the model to different catchments. Even when applied to local groundwater systems, the impact on salinity in terms of land salinised, salt loads and dollars was small. These factors can represent major... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Vegetation; Salinity; Benefit cost; Environmental Economics and Policy; Land Economics/Use. |
| Ano: 2004 |
URL: http://purl.umn.edu/58706 |
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| ARAÚJO,FRANCISCA SOARES DE; SAMPAIO,EVERARDO V. S. B.; FIGUEIREDO,MARIA ANGÉLICA; RODAL,MARIA JESUS NOGUEIRA; FERNANDES,AFRÂNIO GOMES. |
| Foi caracterizada a composição florística da vegetação de carrasco do sul do planalto da Ibiapaba em Novo Oriente, Ceará (5°28 - 5°43S e 40°52 - 40º55W ; 750-850 m de altitude), ocorrendo em Areias Quartzosas profundas. Foram coletadas 184 espécies, incluindo ervas, cipós, subarbustos, arbustos e árvores, distribuídas em 52 famílias. As famílias com maior número de espécies foram Caesalpiniaceae (17), Fabaceae (16), Euphorbiaceae (15), Myrtaceae (11), Bignoniaceae (10) e Mimosaceae (9). De 102 espécies arbustivas e arbóreas da área estudada, 24 ocorreram em áreas de caatingas e cerrados, 29 em cerrados, 17 em caatinga, uma espécie em mata e 31 foram exclusivas do carrasco. Não foi possível definir se o carrasco é um cerradão degradado ou um tipo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carrasco; Vascular flora; Vegetation. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000200001 |
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| Registros recuperados: 53 | |
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