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Registros recuperados: 16
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Assessment of Ecological Risk to Land Use in Liaoning Province Based on Global Climate Change AgEcon
Sun, Yun-peng.
Based on the climatic data and other statistics of climatic data of 54 meteorological stations from 1956 to 2005 in Liangning Province, the annual and seasonal light, heat and water and the like major elements of climatic resources are diagnosed and analyzed by using the method of linear climate trend rate. The results show that warming trend is 0.25℃/10a , the precipitation decrease gradually by 2.2mm/a and the decreasing trend of solar radiation and hours of sunshine is not dramatic. The overall climate change trend is warming and drying trend, featuring “significantly increased temperature, the decreased precipitation and sunshine”. These features are significant in autumn, thus leading to the trend of moving west and retreating east of the...
Tipo: Journal Article Palavras-chave: Global climate change; Land use; Scenario analysis; Ecological security assessment; China; Agribusiness.
Ano: 2010 URL: http://purl.umn.edu/93668
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Can an Effective Global Climate Treaty Be Based on Sound Science, Rational Economics, and Pragmatic Politics AgEcon
Stavins, Robert N..
The Kyoto Protocol (1997) to the United Nations Framework Convention on Climate Change (1992) may come into force without U.S. participation, but its effects on climate change will be trivial. At the same time, the economic and scientific consensus points to the need for a credible international approach. A reasonable starting point is the Framework Convention on Climate Change (FCCC), which was signed by 161 nations and ratified by 50, including the United States, and entered into force in 1994. In this paper, I remain agnostic on the question of the Kyoto Protocol's viability. Some analysts see the agreement as deeply flawed, while others see it as an acceptable or even excellent first step. But virtually everyone agrees that the Protocol is not...
Tipo: Working or Discussion Paper Palavras-chave: Global climate change; Global warming; Policy architecture; Kyoto Protocol; Environmental Economics and Policy; Q54; Q58; Q48; Q39.
Ano: 2004 URL: http://purl.umn.edu/10720
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Contribution of forest management to carbon sequestration in the Brazilian Amazon. Repositório Alice
SOUZA, C. R. de; AZEVEDO, C. P. de; ROSSI, L. M. B..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Greenhouse gas emissions; Global climate change; Carbon sequestration; Forest management.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/997694
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Ecological States and the Resilience of Coral Reefs Ecology and Society
McClanahan, Tim; Wildlife Conservation Society; crcp@africaonline.co.ke; Polunin, Nicholas; Newcastle University; n.polunin@ncl.ac.uk; Done, Terry; Australian Institute of Marine Science; t.done@aims.gov.au.
We review the evidence for multiple ecological states and the factors that create ecological resilience in coral reef ecosystems. There are natural differences among benthic communities along gradients of water temperature, light, nutrients, and organic matter associated with upwelling-downwelling and onshore-offshore systems. Along gradients from oligotrophy to eutrophy, plant-animal symbioses tend to decrease, and the abundance of algae and heterotrophic suspension feeders and the ratio of organic to inorganic carbon production tend to increase. Human influences such as fishing, increased organic matter and nutrients, sediments, warm water, and transportation of xenobiotics and diseases are common causes of a large number of recently reported ecological...
Tipo: Peer-Reviewed Reports Palavras-chave: Carbon production; Coral reefs; Diseases; Ecological stress; Fishing; Global climate change; Keystone species; Oligotrophy-eutrophy; Resilience; Trophic ecology.
Ano: 2002
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Elevated CO2 concentration improves functional traits and early growth of the widespread species Enterolobium contortisiliquum (Vell.) Morong Biological Sciences
Melo, Nayara Magry Jesus; Rosa, Rayete Sary-Eldin Gil; Pereira, Eduardo Gusmão; Souza, João Paulo.
 Enterolobium contortisiliquum is a neotropical widespread species that occurs in native Atlantic Forest, Cerrado and Caatinga vegetation in Brazil. Outside Brazil, it occurs in Argentina, Bolivia, Paraguay, and Uruguay. The objective of this study was to investigate the influence of high carbon dioxide concentration [CO2] on leaf gas exchange, chlorophyll content, chlorophyll a fluorescence, growth, and biomass allocation among roots, stems, and leaves in young plants of E. contortisiliquum. After germination, twenty days old individuals of E. contortisiliquum were grown in open-top chambers (OTC) at two different [CO2] (400 ppm and 700 ppm). Physiological measurements were made when the plants had been grown in OTC for 170, 200, 230, and 260 days. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Botânica biomass partitioning; Chlorophyll a; Global climate change; Maximum net photosynthesis; Total leaf area..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39555
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Feeling the heat: Financial crises and their impact on global climate change AgEcon
Giedraitis, Vincentas Rolandas; Girdenas, Sarunas; Rovas, Adomas.
This interdisciplinary paper uses world-systems analysis as a theoretical framework to argue that both the 1870s, 1930’s economic depressions reduced mean global temperatures. As global consumer demand fell, factories worldwide began producing less commodities and, as a result, emitted less greenhouse gasses. We find that in both instances there is evidence to support the hypothesis that financial crises lead to cooler temperatures.
Tipo: Journal Article Palavras-chave: Kondratiev waves; Schumpeter; World-systems analysis; Environmental economics; Global climate change; Environmental Economics and Policy; Financial Economics; N22; N50; Q54.
Ano: 2010 URL: http://purl.umn.edu/94609
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Greenhouse emissions and economic recessions: Did industrial economies “Stay Cool” during the 1930s economic crisis? AgEcon
Giedraitis, Vincentas Rolandas; Girdenas, Sarunas; Rovas, Adomas.
In this historical economic interdisciplinary research we investigate the impact of the 1930s economic crisis and their relationship to global warming. We investigate two consecutive hegemonic powers: the United Kingdom and the United States. Our assumption was that a reduction in demand would lead to a decrease in mean global temperatures during depressions. We find that in fact reduced carbon dioxide in the atmosphere resulting from lowered production does not result in cooling temperatures.
Tipo: Journal Article Palavras-chave: Historical economic sociology; Kondratiev wave theory; World-systems analysis; Economic crises; Global climate change; Environmental Economics and Policy; Financial Economics; International Development; B23; B52; N50; Q54.
Ano: 2010 URL: http://purl.umn.edu/95939
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Improving Environmental Quality in South Florida through Silvopasture: An Economic Approach AgEcon
Stainback, G. Andrew; Alavalapati, Janaki R.R.; Shrestha, Ram K.; Larkin, Sherry L.; Wong, Grace.
A dynamic optimization model is used to compare the profitability of silvopasture with traditional cattle ranching in south Florida. Silvopasture can reduce phosphorus runoff from cattle ranching-a major environmental concern for Lake Okeechobee and the Everglades. Silvopasture can also sequester carbon, thereby offsetting global climate change. The effectiveness of phosphorus runoff taxes and carbon sequestration payments for inducting landowners to adopt silvopasture is investigated. We find that phosphorus taxes alone would not induce landowners to adopt silvopasture. However, payments to landowners to sequester carbon, alone or in conjunction with phosphorus runoff taxes, can make silvopasture financially competitive with traditional ranching.
Tipo: Journal Article Palavras-chave: Carbon sequestration; Cattle ranching; Faustmann model; Global climate change; Phosphorus runoff; Silvopasture; Slash pine; Tax; Q57; Q23.
Ano: 2004 URL: http://purl.umn.edu/43396
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IOC-SOA-NOAA Regional Workshop for Member States of the Western Pacific - GODAR-II (Gloabal Oceanographic Data Archeology and Rescue Project), World Data Centre D, Oceanography, Tianjin, China, 8-11 March 1994. OceanDocs
Supported by IOC for UNESCO.
Tipo: Report Palavras-chave: Global climate change.
Ano: 1994 URL: http://hdl.handle.net/1834/5582
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Managing Global Climate Change An Executive Interview with Carole Brookins AgEcon
Jose, H. Douglas.
Carole Brookins is an international consultant known for her work as a policy and trade strategist on issues concerning the global political economy and its effect on the food and agriculture sector. She currently serves on the board of several corporate and non- profit organizations concerned with global food system issues and is currently helping to develop solutions which can offset the effects of global climate change through the reduction and management of carbon emissions—an issue of increasing importance in future food marketing and world trade. This interview was conducted by Doug Jose is a Professor and Extension Farm Management Specialist in the Department of Agricultural Economics at the University of Nebraska- Lincoln and host of the Market...
Tipo: Journal Article Palavras-chave: Global climate change; Food marketing; Carbon Exchange Market; Transportation; Agricultural and Food Policy; Food Security and Poverty; Marketing; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy; Q10; Q13; Q16.
Ano: 2008 URL: http://purl.umn.edu/53806
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Os grandes ciclos biogeoquímicos do planeta. Infoteca-e
ADUAN, R. E.; VILELA, M. de F.; REIS JUNIOR, F. B. dos.
ABSTRACT: The aim of this work was to present in a didactic way the biogeochemical cycles of the four most important elements and substances on global chemistry: water, carbon, nitrogen and phosphorous. The importance of these elements and substances becomes from the great magnitude of mass and energy utilized in their processes, and on their essentiality on biosphere formation and maintenance. This work intends to showthe interdependence between these great cycles and the biosphere, and the way that the human activity influences on the chemical dynamic of the globe, and the consequences of these shifts for the humanity itself.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Biogeoquímica; Ciclagem de nutriente; Biosfera; Ciclo global; Variação climática; Nutrient cycling; Biogeochemical cycling; Global climate change; Água; Carbono; Fósforo; Nitrogênio.
Ano: 2004 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569371
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Policy Instruments for Climate Change: How Can National Governments Address a Global Problem? AgEcon
Stavins, Robert N..
There continues to be great debate about the desirability of taking actions to limit carbon dioxide (CO2) and other greenhouse gas emissions, but it is important to consider policy instruments that can be employed to meet targets that may eventually be forthcoming. The theoretical advantages of market-based instruments, such as carbon taxes and systems of tradable carbon rights, are striking. In the U.S. domestic context, grandfathered tradable permits will probably be the preferred approach (if any) in the short run, although revenueneutral carbon taxes will hold greater promise in the long run. In the international context, a system of international tradable permits could provide important advantages over alternative approaches, but it is difficult to...
Tipo: Working or Discussion Paper Palavras-chave: Global climate change; Policy instruments; Political and institutional barriers; Environmental Economics and Policy; Q25; Q28; Q4.
Ano: 1997 URL: http://purl.umn.edu/10757
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Simulação de cenários agrícolas futuros: em busca do imprevisível cenário futuro real. Repositório Alice
PELLEGRINO, G. Q.; ASSAD, E. D.; MARIN, F. R.; PINTO, H. P.; ZULLO JUNIOR, J..
Neste trabalho são apresentadas e analisadas as principais linhas de aprimoramentos na simulação de cenários agrícolas futuros baseadas em discussões sobre as primeiras aproximações elaboradas pelos autores. Com a intenção de gerar cenários agrícolas futuros mais próximos do imprevisível cenário futuro real, são propostos o aumento da resolução espacial e temporal dos cenários climáticos de entrada; a inclusão nos modelos das tendências de aumento da frequência de eventos extremos, de processos fisiológicos e do possível efeito da fertilização pelo CO2 no crescimento das culturas; a consideração do avanço tecnológico como amenizador do impacto das mudanças climáticas; a análise da nova geografia de produção e seus impactos econômicos sobre a matriz...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Mudanças climáticas globais (MCG); Modelagem do crescimento de plantas; Simulação de cenários agrícolas futuros (SCAF); Agrometeorologia; PRECIS; Vulnerabilidade agrícola; Global climate change; Agriculture vulnerability; Plant growth modeling; Digital mapping; Spacial analysis.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/513543
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Spondias tuberosa trees grown in tropical, wet environments are more susceptible to drought than those grown in arid environments. Repositório Alice
ANTUNES, W. C.; MENDES, K. R.; CHAVES, A. R. de M.; OMETTO, J. P.; JARMA-OROZCO, A.; POMPELLI, M. F..
In this study, we investigated the different responses of Spondias tuberosa (umbu) trees, which grow in two different ecological life zones in northeast Brazil: tropical wet and tropical arid ecosystems. We evaluated the responses of plants grown under humid and dry conditions by measuring the photosynthesis, water status, fluorescence parameters, carbon isotopes and antioxidant system activity. The higher net photosynthesis values were recorded contemporaneously with the lower VPD values. The highest internal-to-ambient CO2 concentration and the absence of typical changes in the fluorescence parameters suggested an onset of a nonstomatal limitation in the photosynthesis. Our results showed that umbu plants can adjust their antioxidant activity during the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Spondias tuberosa; Estresse hídrico; Umbu; Planta nativa; Caatinga; Carbon isotope composition; Global climate change.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1048487
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The Economic Impact of Global Climate Change on Mediterranean Rangeland Ecosystems: A Space-for-Time Approach AgEcon
Fleischer, Aliza; Sternberg, Marcelo.
Global Climate Change (GCC) can bring about changes in ecosystems and consequently in their services value. Here we show that the urban population in Israel values the green landscape of rangelands in the mesic Mediterranean climate region and is willing to pay for preserving it in light of the expected increasing aridity conditions in this region. Their valuation of the landscape is higher than that of the grazing services these rangelands provide for livestock growers. These results stem form a Time-for-Space approach with which we were able to measure changes in biomass production and rainfall at four experimental sites along an aridity gradient.
Tipo: Working or Discussion Paper Palavras-chave: Global climate change; Ecosystem; Choice modeling; Landscape; Biomass; Environmental Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/15001
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Uncertainty as Information: Narrowing the Science-policy Gap Ecology and Society
Bradshaw, G. A.; National Center for Ecological Analysis and Synthesis (NCEAS) and USDA Forest S; bradshaw@nceas.ucsb.edu; Borchers, Jeffrey G; Department of Forest Science, Oregon State University; borcherj@ucs.orst.edu.
Conflict and indecision are hallmarks of environmental policy formulation. Some argue that the requisite information and certainty fall short of scientific standards for decision making; others argue that science is not the issue and that indecisiveness reflects a lack of political willpower. One of the most difficult aspects of translating science into policy is scientific uncertainty. Whereas scientists are familiar with uncertainty and complexity, the public and policy makers often seek certainty and deterministic solutions. We assert that environmental policy is most effective if scientific uncertainty is incorporated into a rigorous decision-theoretic framework as knowledge, not ignorance. The policies that best utilize scientific findings are defined...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive management; Decision making; Environmental policy; Global climate change; Monitoring; Risk; Uncertainty.
Ano: 2000
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