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Registros recuperados: 91
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Climate Variability Reveals Complex Events for Tularemia Dynamics in Man and Mammals Ecology and Society
Palo, Thomas R; Mid-Sweden University; Thomas.palo@miun.se.
Tularemia is caused by the bacterium Francisella tularensis, but the natural reservoir is unknown and environmental conditions for outbreaks in mammals and man are poorly understood. The present study analyzed the synchrony between the North Atlantic Oscillation (NAO) index, the number of human cases of tularemia reported in Sweden, and the density of hares. Climate variation at a lag of 2 yr explained as a single factor ~ 27% of the variation in the number of tularemia cases over time. A low NAO index, indicating cold winters, and low water flow in rivers during the coming summer were associated with high numbers of human cases of tularemia 2 yr later. The number of mountain hares was not related to NAO or to the number of cases of tularemia. The change...
Tipo: Peer-Reviewed Reports Palavras-chave: Tularemia; Climate; North Atlantic Oscillation index; Disease transmission; Global warming; Francisella tularensis; Lepus timidus.
Ano: 2005
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Climate warming and sea level rise. OceanDocs
Yue, Jun; Dong, Yue; Wu, Sangyun; Geng, Xiushan; Zhao, Changrong.
Based on a large number of actual data, the author believe that the modern global warming and sea level rise resulted from climate warming after the cold front of the Little Ice Age about 200 years ago and the developmnet of the sea level rise phase. In the past 30 years, the rate of sea level rise was increasing, which is under the background of the average temperature uplift 0.2F°(0.11 °C)every 10 years in succession from the 1980s to the past 10 years this century. On the basis of the absolute and relative sea-level rise rate that was calculated from the tidal data during the same period at home and abroad in the last 30 years, in accordance with the resolutions of the 2010 climate conference in Cancun, at the same time, considering the previous...
Tipo: Journal Contribution Palavras-chave: Global warming; Sea level variations; Prediction; Evaluation.
Ano: 2012 URL: http://hdl.handle.net/1834/5832
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CO2 Allowance Allocation in the Regional Greenhouse Gas Initiative and the Effect on Electricity Investors AgEcon
Burtraw, Dallas; Kahn, Danny; Palmer, Karen L..
The Regional Greenhouse Gas Initiative (RGGI) is an effort by nine Northeast and Mid-Atlantic states to develop a regional, mandatory, market-based cap-and-trade program to reduce greenhouse gas (GHG) emissions from the electricity sector. The initiative is expected to lead to an increase in the price of electricity in the RGGI region and beyond. The implications of these changes for the value of electricity-generating assets and the market value of the firms that own them depends on the initial allocation of carbon dioxide allowances, the composition of generating assets owned by the firm, and the locations of those assets. Changes in asset values inside the RGGI region may be positive or negative, whereas changes outside of the RGGI region are almost...
Tipo: Working or Discussion Paper Palavras-chave: Emissions trading; Allowance allocations; Electricity; Air pollution; Auction; Grandfathering; Generation-performance standard; Output-based allocation; Cost-effectiveness; Greenhouse gases; Climate change; Global warming; Carbon dioxide; Asset value; Environmental Economics and Policy; Q2; Q25; Q4; L94.
Ano: 2005 URL: http://purl.umn.edu/10495
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Distribuição natural e habitat da araucária frente às mudanças climáticas globais. Repositório Alice
WREGE, M. S.; FRITZSONS, E.; SOARES, M. T. S.; BOGNOLA, I. A.; SOUSA, V. A. de; SOUSA, L. P. de; GOMES, J. B. V.; AGUIAR, A. V. de; GOMES, G. C.; MATOS, M. de F. S.; SCARANTE, A. G.; FERRER, R. S..
A araucária (Araucaria angustifolia (Bertol.) O. Kuntze.), conhecida como pinheiro-do-paraná, é uma espécie florestal nativa do Brasil, adaptada às regiões serranas frias e úmidas do sul e do sudeste do país e torna-se vulnerável diante das mudanças climáticas globais. Apresenta grande valor econômico, social e ambiental, pois é uma das espécies nativas com maior incremento e potencial de ganho genético, apresenta excelente qualidade de madeira e ainda produz sementes que podem ser usadas na alimentação humana e animal. Com o objetivo de conhecer a distribuição natural atual e o habitat das populações, percorremos parte das bordas da região de ocorrência da araucária, marcando a posição geográfica e altitude. Com as informações de campo, juntamente com...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Conservação genética; Aquecimento global; Genetic conservation; Araucaria angustifolia; Pinheiro do Paraná; Distribuição geográfica; Germplasm conservation; Global warming; Geographical distribution.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077240
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Distribution and habitat of brazilian-pine according to global climate change PFB - Pesquisa Florestal Brasileira
Wrege, Marcos Silveira; Fritzsons, Elenice; Soares, Márcia Toffani Simão; Bognola, Itamar Antônio; Sousa, Valderês Aparecida de; Sousa, Letícia Penno de; Gomes, João Bosco Vasconcellos; Aguiar, Ananda Virgínia de; Gomes, Gustavo Crizel; Matos, Maria de Fátima Silva; Scarante, Andressa Godinho; Ferrer, Rogério Soares.
Araucaria angustifolia (Bertol.) O. Kuntze., also known as brazilian-pine, is a forest native species from Brazil. A. angustifolia is more vulnerable to global climate change, considering it is living in cold and humid mountain regions from southern and southeastern Brazil. Among the native Brazilian forest species, it presents one of the greatest growth and genetic gain potential. It shows excellent wood quality and can still be used in human and animal food, presenting great economic, social and environmental value. In order to determine current distribution of the species and better know its habitat, we worked in the regions representing the borders of natural occurrence, identifying populations and getting trees altitude and geographycal position....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic conservation; Global warming; Geographical distribution conservação genética; Melhoramento vegetal; Agrometeorologia; Biogeografia Conservação genética; Aquecimento global; Distribuição geográfica.
Ano: 2017 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1413
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Diversité ichtyologique en Méditerranée : patrons, modélisation et projections dans un contexte de réchauffement global ArchiMer
Ben Rais Lasram, Frida.
Due to its semi-enclosed shape, to its high species richness and high endemism levels and to its invasiveness, the Mediterranean Sea is one of the most particular and critical ecosystems of the world. The Mediterranean has been intensively studied since the Antiquity, yet foundations underlying fish diversity patterns have been overlooked. In this study, as a first step, we studied fish diversity patterns in the Mediterranean and their determinants. Towards this objective, we built the first comprehensive database on the spatial distributions of the 619 Mediterranean fish species. We then carried out spatial analyses in order to assess the relative contribution of historical and geometric contingencies as well as environmental influences in shaping fish...
Tipo: Text Palavras-chave: Niche modeling; Global warming; Climatic envelopes; Geometric constraints; Endemism; Exotic invasions; Mediterranean Sea; Modélisation des niches; Réchauffement global; Enveloppes climatiques; Contraintes géométriques; Endémisme; Invasions exotiques; Mer Méditerranée.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/these-7407.pdf
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ECOLOGICAL BIOGEOGRAPHY: A REVIEW WITH EMPHASIS ON CONSERVATION AND THE NEUTRAL MODEL BIOGEOGRAFIA ECOLOGICA: REVISION CON ENFASIS EN CONSERVACION Y EL "MODELO NEUTRAL" Gayana
Monge-Nájera,Julián.
Ecological biogeography studies the factors that define the spatial distribution of species in the present time. This review summarises recent contributions on ecological biogeography. Most recent articles report environmental factors such as temperature, humidity and salinity as key elements in the ecological biogeography of many species (followed by other organisms and genetic characteristics). Molecular data indicate that some "unexplainable" ranges are artifacts caused by taxonomic misidentification (several species erroneously classified as a single species). Island biogeography theory is often adequate for conservation management, and the new neutral model of ecological biogeography does not fit all species on which it has been tested. Global warming...
Tipo: Journal article Palavras-chave: Review; Ecological biogeography; Temperate versus tropical; Global warming.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000100012
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Education of rural development for agriculture and animal agriculture in Asia and Pacific OAK
Takahashi, Junichi; 高橋, 潤一.
2003年8月28日とかちプラザで開催、日本ユネスコ国内委員会主催の帯広農村開発教育国際セミナー(OASERD)国際連合ユネスコアジア太平洋地域教育開発計画事業(APEID)シンポジウム「地球にやさしい農業をめざして : 緑地回復と持続的農業」講演資料
Palavras-chave: APEID; OASERD; Global warming; Agriculture; Animal agriculture.
Ano: 2003 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1903
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Efeito das mudanças climáticas sobre a aptidão climática para cana-de-açúcar no Estado de Goiás. Repositório Alice
BARBARISI, B. F.; MARIN, F. R.; ASSAD, E. D.; PILAU, F. G.; PACHECO, L. R. F..
Neste artigo, avaliaram-se os impactos do aumento da temperatura na delimitação das áreas aptas e com restrição climática à cana-de-açúcar no Estado de Goiás, baseando-se no quarto relatório do IPCC no que se refere à variação da temperatura do ar, mas sem considerar a variação no regime de chuvas.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Aquecimento global; Water deficit; Deficiência hídrica; Saccharum officinarum; Global warming.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/4850
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Efeito das mudanças climáticas sobre a aptidão climática para cana-de-açúcar no Estado de São Paulo. Repositório Alice
MARIN, F. R.; ASSAD, E. D.; BARBARISI, B. F.; PILAU, F. G.; PACHECO, L. R. F.; ZULLO JÚNIOR, J.; PINTO, H. S..
Neste artigo, avaliou-se os impactos do aumento da temperatura no zoneamento de aptidão climática para cana-de-açúcar no Estado de São Paulo, baseando-se no quarto relatório do IPCC no que se refere as previsões de temperatura do ar e admitindo que o regime de chuvas fosse mantido.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Aquecimento global; Cana de açúcar; Deficiência hídrica; Saccharum officinarum; Sugarcane; Global warming.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/4952
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Enteric methane mitigation strategies in ruminants: a review. Repositório Alice
PEREIRA, L. G. R.; MACHADO, F. S.; CAMPOS, M. M.; GUIMARAES JUNIOR, R.; TOMICH, T. R.; REIS, L. G.; COOMBS, C..
2015
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Climate change; Global warming; Greenhouse gas; Livestock; Sustainability.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1035234
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Environmental Governance, Globalisation and Economic Performance AgEcon
Tisdell, Clement A..
Increasing globalisation of economic activity and accompanying economic growth have been factors in the worldwide loss of natural environments and biodiversity loss, and these losses have accelerated since the beginning of the Industrial Revolution, Emissions of many types of pollutants and wastes from human activity are rising globally and are exceeding the capacity of natural environments to absorb and neutralize them. This problem is exacerbated by the fact that the quality and size of some natural sinks for neutralizing them (such as forests) are declining. Consequently, these wastes are accumulating in many environments and pose a growing threat to human welfare and to sustainable economic development. There are, for instance, global concerns about...
Tipo: Working or Discussion Paper Palavras-chave: Environmental economics; Environmental governance; Environmental law; Environmental regulation; Globalisation; Global warming; Greenhouse gases; Transboundary pollution; Transboundary natural resources.; Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/55341
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Estimating Carbon Supply Curves for Global Forests and Other Land Uses AgEcon
Sedjo, Roger A.; Sohngen, Brent; Mendelsohn, Robert.
This study develops cumulative carbon 'supply curves' for global forests utilizing an dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and particular time points within that century, the curves are not traditional Marshallian supply curves or steady-state supply curves. Rather, the focus is on cumulative carbon cost curves (quasi-supply curves) at various points in time over the next 100 years. The research estimates a number of long-term, cumulative, carbon quasi-supply curves under different price scenarios and for different time periods. The curves trace out the relationship between an intertemporal price path for carbon, as given by carbon shadow prices, and the cumulative carbon...
Tipo: Working or Discussion Paper Palavras-chave: Carbon supply curves; Sequestration; Timber; Forests; Model; Global warming; Prices; Markets; Resource /Energy Economics and Policy; Q10; Q15; Q21; Q23; Q24.
Ano: 2001 URL: http://purl.umn.edu/10663
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Estimating the Amenity Costs of Global Warming in Brazil: Getting the Most from Available Data AgEcon
Timmins, Christopher.
This paper develops a theoretically consistent technique for valuing non-marketed local attributes using compensating income differentials in the absence of housing market data. The individual’s indirect utility function is identified with aggregate data describing equilibrium location decisions, and this function is used in place of the unidentified equation describing how housing prices are determined. The model is used to value climate amenities in Brazil, where such data problems are prevalent. Similar problems arise in other developing countries, particularly when one looks outside of the largest cities.
Tipo: Working or Discussion Paper Palavras-chave: Wage-hedonics; Discrete-choice analysis; Climate amenity; Global warming; Environmental Economics and Policy; R1; C35; O54.
Ano: 1999 URL: http://purl.umn.edu/28491
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Estoque de carbono no solo e emissão de gases de efeito estufa em sistema de produção de milho com uso de lodo de esgoto. Repositório Alice
GRUTZMACHER, P..
Resumo: O lodo de esgoto (LE) é um resíduo com elevada carga orgânica e nitrogênio (N), que quando utilizado na agricultura, pode incrementar o estoque de carbono (C) do solo e deste modo, auxiliar na mitigação do aquecimento global. Entretanto, devido à elevada concentração de N, este resíduo pode estimular a emissão de óxido nitroso (N2O), um gás de efeito estufa (GEE) 298 vezes mais potente que o dióxido de carbono (CO2), de modo a anular o efeito mitigador do estoque. Ainda não existem estudos que acessem o impacto da utilização deste resíduo no balanço de C do sistema, mais precisamente se o sistema produtivo com LE é fonte ou dreno de GEE e nem a qual magnitude. O objetivo deste trabalho foi quantificar os estoques de C e N do solo, bem como as...
Tipo: Tese/dissertação (ALICE) Palavras-chave: N2O; Potencial de aquecimento global; Fator de emissão; Resíduo orgânico; Organic wastes; Nitrous oxide; Global warming; Emissions factor.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1065436
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Estudo numérico do impacto da mudança climática sobre o rendimento de trigo, soja e milho. Repositório Alice
STRECK, N.A.; ALBERTO, C.M..
O objetivo deste trabalho foi avaliar, por meio de estudo numérico, a existência de impacto da possível mudança climática sobre o rendimento das culturas do trigo, soja e milho, em Santa Maria, RS. Foram criados cenários de mudança climática, dobrando-se a quantidade de CO2, com diferentes aumentos de temperatura do ar, com aumento e sem aumento de precipitação pluvial. O rendimento das três culturas foi simulado com modelos matemáticos disponíveis na literatura. Concluiu-se que a mudança climática, projetada pela simulação, influenciará o rendimento de grãos de trigo, soja e milho, em Santa Maria, RS. O aumento de 2, 3 e 6oC na temperatura do ar pode anular os efeitos benéficos do aumento de CO2 no rendimento de trigo, soja e milho, respectivamente.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Triticum aestivum; Glycine max; Zea mays; Aquecimento global; Suprimento de alimentos; Agricultura; Global warming; Food supply; Agriculture.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/111858
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Global warming and avian occupancy of hot deserts: a physiological and behavioral perspective RChHN
WOLF,BLAIR.
Avian adjustments to desert environments are characterized by an integration of behavior and physiology. These responses serve to maintain homeostasis and conserve vital resources such as water. The small size of birds confers a close coupling to the thermal environment and demands rapid adjustments to environmental challenges. Physiological responses to heat stress include hyperthermia, and increased evaporative cooling as environmental temperatures approach body temperature. Behaviorally, desert birds respond to heat stress by drastically reducing activity during the hottest parts of the day and selecting cool shaded microsites. This characteristic behavioral response presents a potential problem in the face of global warming. If birds totally forgo...
Tipo: Journal article Palavras-chave: Global warming; Hot deserts; Birds; Water balance; Evaporative water loss; Avian distribution.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000300003
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Global Warming and Hyperbolic Discounting AgEcon
Karp, Larry S..
The use of a constant discount rate to study long-lived environmental problems such as global warming has two disadvantages: the prescribed policy is sensitive to the discount rate, and with moderate discount rates, large future damages have almost no effect on current decisions. Time-consistent quasi-hyperbolic discounting alleviates both of these modeling problems, and is a plausible description of how people think about the future. We analyze the time-consistent Markov Perfect equilibrium in a general model with a stock pollutant. The solution to the linear-quadratic specialization illustrates the role of hyperbolic discounting in a model of global warming.
Tipo: Working or Discussion Paper Palavras-chave: Stock pollutant; Hyperbolic discounting; Global warming; Time consistency; Environmental Economics and Policy; D83; L50.
Ano: 2004 URL: http://purl.umn.edu/25069
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Global Warming and the Future of Pacific Island Countries AgEcon
Tisdell, Clement A..
This article briefly outlines the cause of global warming, its trends and consequences as indicated by the International Panel on Climate Change. Sea-level rise is one consequence of particular concern to Pacific island states. It also reviews the views of economists about connections between economic growth and global warming. Whereas the majority of economists did not foresee a conflict between economic growth and global warming, the possibility of such a conflict is now more widely recognized following the Stern Report. International efforts, such as through the Kyoto Protocol, to reduce greenhouse gas emissions and their atmospheric concentration are discussed and prospects for post-Kyoto policies are considered. It is predicted that a significant...
Tipo: Working or Discussion Paper Palavras-chave: Climate change; Environmental Kuznets curve; Global warming; Kyoto Protocol; Pacific islands; Post Kyoto; Sea-level rise; Small island developing states; Stern Report.; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/55106
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Global warming projection of the change in dissolved oxygen concentrations in low oxygen regions of the oceans Gayana
Matear,Richard.
Global warming projections using a range of climate models included in the IPCC 4th assessment report (AR4) suggest the oceans will warm, the stratification of the upper ocean will increase and the ventilation of the ocean interior will change. These physical changes will impact dissolved oxygen levels in the ocean. Using a global warming projection from the CSIRO (Australian Commonwealth Scientific and Research Administration) climate model linked to a simple ocean biogeochemical model I investigated how dissolved oxygen levels in the ocean interior change under global warming. The climate simulations project the low oxygen regions like the eastern equatorial Pacific will expand. By the end of the century it is projected that the volume of hypoxic water...
Tipo: Journal article Palavras-chave: Global warming; Oxygen changes; Anoxia; Biogeochemical cycles; Climate change.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000300010
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