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Registros recuperados: 427
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A bioüzemanyag-gyártás nemzetközi összefüggései AgEcon
Popp, Jozsef.
A dráguló olajár „felszínre hozta” a fosszilis energiahordozók környezetbarát energiahordozókkal való kiváltásának problémáját. Az olajkészletek korlátozottsága mellett a bizonytalan kitermelés és a folyamatosan növekvő árak a bioüzemanyagok felé irányítják a politikai döntéshozók és a befektetők figyelmét. Az olajimportőr országoknak a bioüzemanyag-gyártás nyersanyagainak hazai termelése lehetővé teszi importköltségeik visszafogását, az üvegházhatást okozó gázok kibocsátásának csökkentését, valamint a mezőgazdasági termelők jövedelem-színvonalának javítását. A bioüzemanyagok elterjedése ugyanakkor enyhíti a kapacitása határán dolgozó olajfinomító ipar üzemanyag-ellátási terheit is, ami jelentős mértékben hozzájárul(t) az üzemanyagárak emelkedéséhez. Ma...
Tipo: Journal Article Palavras-chave: Bioüzemanyag; Közlekedés; Környezetvédelem; Energiaellátás; Élelmiszer-termelés; Biofuel; Transportation; Environment; Energy supply; Food production; Agricultural and Food Policy; Land Economics/Use.
Ano: 2007 URL: http://purl.umn.edu/57723
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A Dynamic Approach to the FDI-Environment Nexus: The Case of China and India AgEcon
Baek, Jungho; Koo, Won W..
The cointegration analysis and a vector error-correction (VEC) model are applied to examine the short- and long-run relationships among foreign direct investment (FDI), economic growth, and the environment in China and India. The results show that FDI inflow plays a pivotal role in determining the short- and long-run movement of economic growth through capital accumulation and technical spillovers in the two countries. However, FDI inflow in both countries is found to have a detrimental effect on environmental quality in both the short- and long-run, supporting pollution haven hypothesis. Finally, it is found that, in the short-run, there exists a unidirectional causality from FDI inflow to economic growth and the environment in China and India - a change...
Tipo: Conference Paper or Presentation Palavras-chave: China; Cointegration analysis; Environment; FDI; India; Vector error-correction; Research Methods/ Statistical Methods.
Ano: 2008 URL: http://purl.umn.edu/6508
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A economia da produção de milho e o meio ambiente. Repositório Alice
MONTEIRO. J. de A..
2000
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Sistema de producao; Economia da producao; Milho; Meio ambiente; Zona macroagroecologica; Zea mays; Maize; Production system; Production economy; Environment.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/483911
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A economia da produção de milho e o meio ambiente. Repositório Alice
MONTEIRO, J.A..
2000
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Milho; Sistema de producao; Economia da producao; Meio ambiente; Zona macroagroecologica; Zea mays; Maize; Production system; Production economy; Environment.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/484059
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A hazai húsmarhatartás környezeti értékelése és externáliáinak vizsgálata benchmarking módszerrel AgEcon
Bakosne Borocz, Maria; Fogarassy, Csaba.
Benchmarking alkalmazásával vizsgáltuk a hazánkban alkalmazott marhatartási technológiákat annak érdekében, hogy valamilyen módon az externális hatásokat be lehessen mutatni. A vizsgálataink eredménye, hogy a hagyományos technológia mellett található a legtöbb negatív externália, míg az extenzív, és az ökológiai tartásmód externális, valamint környezeti szempontból is a legjobb megoldást jelenti. ------------------------------ In our study we reviewed the conditions of extensive agricultural farming and its benefits based on environmental criteria. Furthermore we examined its external effects, which may affect the agriculture and the meat cattle breeding. Beef fattening, when done intensively, can cause huge environmental problems which may cause negative...
Tipo: Article Palavras-chave: Húsmarha; Extenzív; Benchmarkig; Környezet; Externália; Beef cattle; Extensive; Benchmarking; Environment; Externalities; Agribusiness; Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/119900
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A Multicommodity EU Policy Framework Incorporating Public Good Criteria into the Direct Payment System in Agriculture AgEcon
Dunne, W.; O'Connell, J.J..
For decades the CAP has been the major influence in shaping EU agriculture and food production. The economic and policy environment in the EU is now very different from that which prevailed in the earlier decades. The future economic, social and geographic diversity of the EU will be further increased by enlargement. Agricultural policies and the related operational frameworks will inevitably change to accommodate this added diversity and the changing societal and consumer values. This paper evaluates how the current shape of EU agriculture has been influenced by the reforms to date. It also attempts to focus on where EU farming may be, or wish to go, over the next decade. The evaluation is restricted to the beef sector as it has been to the forefront in...
Tipo: Conference Paper or Presentation Palavras-chave: CAP reform; Direct payments for public goods; Animal welfare; Environment; Food safety; Production methods; Extensive production; Economic; Social and geographic diversity; Future role of farming; An administrative framework.; Agricultural Finance.
Ano: 2002 URL: http://purl.umn.edu/24801
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A novel method to optimize culture conditions for biomass and sporulation of the entomopathogenic fungus Beauveria Bassiana IBC1201 BJM
Gao,Li.
Biomass yields and sporulation of Beauveria bassiana was concerned on culture conditions, environmental factors and cultivation method. We optimized the best culture conditions for biomass yields of B. bassiana IBC1201 with the novel "two-stage" cultivation method as well as orthogonal matrix method. Firstly, we cultured spore suspension on the basal medium (sucrose 19.00 g, soy peptone 4.06 g, K2HPO4 1.00 g, KCl 0.50 g, MgSO4 0.50 g, FeSO4 0.10 g and 17.00 g Bactor) for the first stage culture of 4 days under room condition. Then, we transferred them to another defined medium (Cellobiose 9.52 g, urea 1.70 g, ZnSO4•7H2O 0.05 g/L, MnSO4•H2O 0.005 g/L, CaCl2 1.00 g/L, CuSO4•5H2O 0.05 g/L and 17.00 g Bactor) for more 4 days cultivation with the environmental...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrition; Environment; Biomass; Sporulation; Beauveria bassiana.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400045
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A PARTIAL EQUILIBRIUM MODEL OF THE LINKAGES BETWEEN ANIMAL WELFARE, TRADE AND THE ENVIRONMENT IN SCOTLAND AgEcon
Toma, Luiza; Ashworth, Cheryl J.; Stott, Alistair W..
This research analyses the impacts of a scientific advance that improves animal welfare, upon the environment and trade in Scotland using partial equilibrium (PE) modelling. The science improves pig neonatal survival through improved (high fibre) sow diets used before mating. Our model simulates the effects of animal welfare changes on the pig production systems (pig meat) and further on trade flows (trade in pig meat) and environment (water and air pollution). We consider two animal welfare simulation scenarios, namely the status quo – no animal welfare change as regards pig neonatal mortality (baseline scenario) and the case of improving pig neonatal survival (alternative scenario) and compare the impacts on trade and environment between the two...
Tipo: Conference Paper or Presentation Palavras-chave: Pig Welfare; Trade; Environment; Scotland; Partial Equilibrium Model.; Agricultural and Food Policy; Environmental Economics and Policy; Research Methods/ Statistical Methods; Q18; Q50.
Ano: 2008 URL: http://purl.umn.edu/44825
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A Participatory Modeling Process to Capture Indigenous Ways of Adaptability to Uncertainty: Outputs From an Experiment in West African Drylands Ecology and Society
d'Aquino, Patrick; CIRAD; daquino@cirad.fr; Bah, Alassane; UMISCO ESP UCAD Dakar; alassane.bah@gmail.com.
Over the centuries, local communities have shaped atypical rules to deal with the uncertainty of their environment. They have developed complex prototypes for flexible overlapping institutions and arrangements to adapt their rules and uses to their uncertain environment. Today, this indigenous way of flexibly institutionalizing access rules could provide blueprints for dealing with uncertainty issues resulting from global change as well as designing practical guidelines for implementing resilient management. However, transforming indigenous skills for developing institutional flexibility into operational management rules that are appropriate in the current environmental and socioeconomic context is a huge challenge. However, communities could easily...
Tipo: Peer-Reviewed Reports Palavras-chave: Environment; Indigenous knowledge; Management; Modeling; Participation; Sahel; Senegal; Uncertainty.
Ano: 2013
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A questao ambiental na utilizacao de dejetos de suinos como fertilizante do solo. Infoteca-e
SEGANFREDO, M. A..
Caracteristicas gerais da suinocultura catarinense e a problematica dos dejetos de suinos; Alternativas de reciclagem; A utilizacao dos dejetos de suinos como fertilizante do solo; A sustentabilidade dos sistemas adubados com dejetos de suinos; A situacao em outros paises onde se utiliza dejetos de suinos como fertilizante do solo; Prejuizos causados pela aplicacao de ezcessivas quantidades de dejetos ao solo; Algumas causas da demora na percepcao dos efeitos adversos da adubacao com dejetos de suinos; Qual o limite, quando se pode aplicar em cada solo?.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Fertilizante organico; Waste; Organic fertilizer; Dejeto; Meio Ambiente; Suíno; Environment; Swine.
Ano: 2000 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/437664
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A Review of Two Payment Schemes for Watershed Services from China and Vietnam: the Interface of Government Control and PES Theory Ecology and Society
Kolinjivadi, Vijay K; Center for International Forestry Research (CIFOR); vijay.kolinjivadi@mail.mcgill.ca; Sunderland, Terry; Center for International Forestry Research (CIFOR); T.Sunderland@cgiar.org.
China and Vietnam have developed some of the most ambitious payments for ecosystem services (PES) initiatives for watershed conservation and forest management. These include the Sloping Land Conversion Programme in China and pilot projects designed to implement Decision 380 and the subsequent national PES law in Vietnam. This study reviews how these two government-driven initiatives are achieving their environment and development objectives in terms of their institutional arrangements, implementation in practice, and sustainability prospects. Although it remains too soon to determine the effects of these programs on watershed services, early evidence indicates that they are resulting in vulnerable land being retired from cultivation supported, in some...
Tipo: Peer-Reviewed Synthesis Palavras-chave: China; Environment; Payments for ecosystem services; Vietnam; Well-being.
Ano: 2012
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A Tale of Two Market Failures: Technology and Environmental Policy AgEcon
Jaffe, Adam B.; Newell, Richard G.; Stavins, Robert N..
Market failures associated with environmental pollution interact with market failures associated with the innovation and diffusion of new technologies. These combined market failures provide a strong rationale for a portfolio of public policies that foster emissions reduction as well as the development and adoption of environmentally beneficial technology. Both theory and empirical evidence suggest that the rate and direction of technological advance is influenced by market and regulatory incentives, and can be cost-effectively harnessed through the use of economicincentive based policy. In the presence of weak or nonexistent environmental policies, investments in the development and diffusion of new environmentally beneficial technologies are very likely...
Tipo: Working or Discussion Paper Palavras-chave: Technology; Research and development; Environment; Externality; Policy; Environmental Economics and Policy; O38; Q28; H23.
Ano: 2004 URL: http://purl.umn.edu/10815
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A Theoretical Approach to Tourism Sustainability Ecology and Society
Casagrandi, Renato; Dipartimento di Elettronica e Informazione, Politecnico di Milano; casagran@elet.polimi.it; Rinaldi, Sergio; CIRITA, Politecnico di Milano; rinaldi@elet.polimi.it.
This paper shows that it is difficult, if not impossible, to formulate policies that guarantee that tourism can be maintained for a long time without severely impacting on the environment. The analysis is purely theoretical and is based on very simple and general assumptions about the interactions between the three main components of the system: the tourists, the environment, and the capital. These assumptions are encapsulated in a so-called minimal model, used to predict the economic and environmental impact of any given policy. This paper is of value for three reasons. First, it introduces the approach of minimal descriptive models in the context of tourism, which has traditionally been dominated by the use of black-box econometric models. Second, the...
Tipo: Peer-Reviewed Reports Palavras-chave: Bifurcation analysis; Environment; Model; Nonlinear dynamics; Sustainability; Tourism.
Ano: 2002
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Abatement Technology and the Environment-Growth Nexus with Education AgEcon
Pautrel, Xavier.
This article challenges the conventional result that a tighter environmental tax has no long-run effect on human capital accumulation in the presence of pollution arising from final output production. It demonstrates that the technology used in the abatement sector determines the existence and the direction of the growth-effect. A tighter environmental tax rises (respectively reduces) human capital accumulation in the presence of pollution arising from final production, if the abatement sector is relatively more intensive in human (resp. physical) capital than final sector. That result always holds for finite lifetime but for infinite lifetime it only holds when labor supply is endogenous. The transitional impact of a tighter environmental policy is also...
Tipo: Working or Discussion Paper Palavras-chave: Growth; Environment; Overlapping Generations; Human Capital; Abatement; Research and Development/Tech Change/Emerging Technologies; Q5; Q58.
Ano: 2011 URL: http://purl.umn.edu/101379
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Abeilles et Environnement National Institute of Agronomic Research
Leconte, Yves; Belzunces, Luc; Vaissière, Bernard; Vermandère, Jean-Paul; Carré, Gabriel.
Tipo: Working Paper Palavras-chave: Bee; Environment; Ecology; Population dynamics; Pollination; Toxicology; Abeille; Environnement; Ecologie; Dynamique des populations; Toxicologie; Ecologie.
Ano: 2008 URL: http://hdl.handle.net/2174/187
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Aclimatacao de Cratylia mollis Mart. ex. Benth em areas de caatinga nativa e impactada a estacao seca. Repositório Alice
TEIXEIRA, F.C.P. e; REINERT, F.; LIMA FILHO, J.M.P.; MARTINS, L.M.V.; RUMJANEK, N.G..
2001
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Leguminosa forrageira; Estresse hidrico; Luminosidade; Meio ambiente; Aclimatacao; Cratylia mollis; Brasil; Regiao semi-arida; Plant; Adaptation; Leguminosae; Forage; Water; Stress; Environment; Bazil; Semiarid region.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/134350
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Adaptabilidade e estabilidade de linhagens de arroz de sequeiro testadas no Estado de Minas Gerais. Repositório Alice
ATROCH, A. L.; SOARES, A. A.; RAMALHO, M. A. P..
Avaliacao da adaptabilidade e estabilidade de nove linhagem de arroz de sequeiro, em quatro localidades de Minas Gerais, bem como quantificacao das interacoes genotipos x variaveis ambientais, e verificacao de quais, dentre elas, contribuem mais para a interacao genotipo x ambientes. Para isso, foram realizadas analises de variancia individuais e conjunta dos materiais testados no periodo. A magnitude da variancia da interacao genotipos por locais foi maior que a da variancia da interacao genotipos por anos, sugerindo que as avaliacoes sejam realizadas em maior numero de locais. Os materiais diferiram quanto a estabilidade da produtividade de graos, com destaque para a cultivar Canastra e a linhagem CNA 6975-2. Por outro lado, as cultivares Maravilha e...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Oryza sativa; Arroz sequeiro; Genotipo; Meio ambiente; Brasil; Minas Gerais; Genotypes; Environment.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/670530
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Adaptabilidade e estabilidade de linhagens de feijão-caupi de porte ereto em Mato Grosso do Sul. Repositório Alice
ABREU, F. B.; TORRES, F. E.; SAGRILO, E.; QUEIROZ, L. S.; MORAES, S. C. F. C.; DAMASCENO, J. E.; BERTONCELLO, V.; FREIRE FILHO, F. R.; ROCHA, M. M..
Este trabalho teve como objetivo estudar a adaptabilidade e estabilidade de 20 genótipos de feijão-caupi provenientes da Embrapa Meio-Norte, em três municípios de Mato Grosso do Sul (Chapadão do Sul, Dourados e Aquidauana), com relação à produção de grãos (kg ha-1). Os experimentos foram conduzidos no delineamento de blocos ao acaso, com quatro repetições. Para identificação de genótipos com boa adaptabilidade e estabilidade em relação aos locais estudados, aplicou-se a metodologia de Eberhart & Russell (1966). A linhagem MNC00-553D-8-1-2-3 foi a mais promissora, podendo vir a ser recomendada para cultivo em Chapadão do Sul, Dourados e Aquidauana, com grande chance de sucesso na produção de grãos de feijão-caupi.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Ambiente; Produtividade de grãos; Environment; Grain yield.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/68761
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Adaptação da quinoa (Chenopodium quinoa Willd.) para incrementar a diversidade agrícola e alimentação no Brasil. Repositório Alice
SPEHAR, C.R..
O cultivo da quinoa (Chenopodium quinoa Willd.), uma espécie da família Chenopodiaceae de introdução recente no Brasil, tem despertado interesse por causa de grandes esforços em pesquisa, experimentação e desenvolvimento, durante os últimos 15 anos. Por tratar-se de planta nova na agricultura brasileira, ainda que apresente grandes perspectivas por suas múltiplas aplicações, o estabelecimento da cadeia produtiva encontra-se no seu limiar e depende do elo entre a demanda e o produtor. Entretanto, com o aumento dos problemas fitossanitários, decorrentes de monocultivo, especialmente da soja no Cerrado, intensifica-se a pressão por diversificar. Culturas alternativas, como a quinoa, que possibilitam interromper o ciclo de pragas e doenças, são boas opções....
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Chenopodiaceae; Cultivar; Agronomia; Utilização; Vantagem econômica; Ambiente; Agronomy; Utilisation; Economical advantage; Environment.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/125099
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Adoption of Environmental Best Practice Amongst Dairy Farmers AgEcon
Bewsell, Denise; Kaine, Geoff.
The adoption of environmental management practices is addressed in this paper. The use of consumer behaviour theory and a market research approach is discussed by describing how it was used in the study. Qualitative methods were used to gather data from dairy farmers in four New Zealand catchments. The environmental practices explored were; excluding stock from waterways, reducing phosphorus use, improving soil macroporosity, managing effluent and improving the efficiency of border-dyke irrigation. The findings are discussed, highlighting that farm contextual factors influenced farmers’ decision making in terms of adopting environmental management practices. The results suggest that environmental practices need to be linked to farm context. This should...
Tipo: Conference Paper or Presentation Palavras-chave: Environment; Adoption; Dairy farms; Context; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management.
Ano: 2005 URL: http://purl.umn.edu/98494
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