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	Provedor de dados AgEcon (2) Autor Beukes, Pierre (1) Briner, Simon (1) Folkers, Chris (1) Fulkerson, William (1) Hartmann, Michael (1) Lehmann, Bernard (1) Levy, Gil (1) Neal, Mark (1) Palliser, Chris (1) Thorrold, Bruce S. (1) Wastney, Meryl (1) Mais... Palavra-chave Livestock Production/Industries (2) Whole-farm model (2) Agroforestry (1) C61 (1) Dairy farms (1) Environmental Economics and Policy (1) Environmental regulation (1) Evolutionary algorithm (1) Greenhouse gas mitigation (1) Q12 (1) Q52 (1) Suckler farming (1) Mais... Tipo do documento Conference Paper or Presentation (2) Ano 2011 (1) 2006 (1) País United States (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Economic Assessment of Agroforestry Systems Compared to Other Greenhouse Gas Mitigation Options for Suckler Cow Farming AgEcon Briner, Simon; Hartmann, Michael; Lehmann, Bernard. Agriculture is responsible for a large share of global greenhouse gas (GHG) emissions, especially for methane and nitrous oxide emissions. Applying a bio-economic whole-farm model, we assessed five GHG mitigation options on their economic suitability to reduce emissions from grassland-based suckler cow farms. Among the assessed options, only compensation by agroforestry systems and the choice of an adequate production system showed the potential to significantly reduce emissions. If an adequate production system is chosen, GHG emissions per kilogram of meat can be reduced by up to 18% – from 21.9 to 18 kg CO2-eq./kg of meat – while total gross margin can be increased by up to 14%. Through the application of an agroforestry system, GHG emissions in all... Tipo: Conference Paper or Presentation Palavras-chave: Greenhouse gas mitigation; Whole-farm model; Agroforestry; Suckler farming; Livestock Production/Industries. Ano: 2011 URL: http://purl.umn.edu/114271 The Potential Cost to New Zealand Dairy Farmers from the Introduction of Nitrate-Based Stocking Rate Restrictions AgEcon Neal, Mark; Fulkerson, William; Levy, Gil; Wastney, Meryl; Thorrold, Bruce S.; Palliser, Chris; Beukes, Pierre; Folkers, Chris. Introducing a stocking rate restriction is one possible course of action for regulators to improve water quality where it is affected by nitrate pollution. To determine the impact of a stocking rate restriction on a range of New Zealand dairy farms, a whole-farm model was optimised with and without a maximum stocking rate of 2.5 cows per hectare. Three farm systems, which differ by their level of feed-related capital, were examined for the changes to the optimal stocking rate and optimal level of animal milk production genetics when utility was maximised. The whole-farm model was optimised through the use of an evolutionary algorithm called differential evolution. The introduction of a stocking rate restriction would have a very large impact on the... Tipo: Conference Paper or Presentation Palavras-chave: Environmental regulation; Dairy farms; Whole-farm model; Evolutionary algorithm; Environmental Economics and Policy; Livestock Production/Industries; Q12; Q52; C61. Ano: 2006 URL: http://purl.umn.edu/25620 Registros recuperados: 2 Primeira ... 1 ... Última

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