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| Registros recuperados: 311 | |
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| Hubert, Marie-Helene; Chakravorty, Ujjayant; van Kooten, G. Cornelis. |
| In the context of ever-increasing petroleum prices combined with concerns about climate change, timing of adoption and rate of diffusion of land-based fuels and backstop technologies for transportation use are examined in this paper. A global model of land allocation joined with a Hotelling model has been developed. Using this framework, effects of climate and energy policies on world agricultural and energy markets have been explored. Further, their regional impacts are also analyzed. Whereas mandatory blending bio-fuels have substantial effects on world food prices and do not succeed in curbing down carbon emissions fluxes, carbon targets are expected to speed up date of adoption of backstop technologies. Then, sensitivity scenarios with regards to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Ricardian rents; Land use; Biofuels; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/44259 |
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| Froufe, Luís Cláudio Maranhão; Rachwal, Marcos Fernando Gluck; Seoane, Carlos Eduardo Sicoli. |
| Carbon storage of agroforestry systems, regenerated areas, conventional agriculture and pasture was evaluated at Alto Ribeira Valley region, São Paulo State, Brazil, in different compartments of Land-use systems (LUS). In soil, classified as Entisols and Inceptisols, we found similarities among all LUS, dued to their low contents of organic carbon, and similar values of bulk density. The total carbon stocked on land-use systems, greater amounts were determined on regenerated areas (115.78 Mg ha-1), followed by agroforestry systems (75.38 Mg ha-1), agriculture (47.07 Mg ha-1), and pasture (36.01 Mg ha-1). Despite their conservative characteristic, the silvicultural practices of multistrata agroforestry systems have to be improved for forest production and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservação dos recursos naturais; Floresta Ombrófila Densa; Estoque de carbono; SAF; Sistemas de uso do solo Agroforestry systems; Atlantic Rain Forest; Carbon sink; Land use; Natural resource conservation. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/180 |
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| Marshall, Elizabeth P.. |
| Biofuels such as ethanol and biodiesel are increasingly promoted as green alternatives to petroleum-derived transport fuels. Scaling up feedstock production to produce enough biofuel to displace a significant portion of current petroleum demand will put pressure on land and water resources both domestically and internationally, however, and could potentially be accompanied by unacceptable changes in landscape-level land use patterns and provisioning of ecosystem services. Ensuring that feedstock production is sustainable and that biofuels provide the social and environmental benefits that are often attributed to them will require a carefully designed portfolio of agricultural, forestry, energy, and trade policies related to biofuels and feedstock... |
| Tipo: Journal Article |
Palavras-chave: Biofuels; Sustainability; Land use; Greenhouse gas accounting; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/44696 |
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| Caviglia-Harris, Jill L.. |
| In developing countries across the globe the impact of livestock on deforestation levels has been profound. This paper explores the role of the cattle industry in household decision making for small landholders in the Brazilian Amazon. Important inquiries raised in the literature are addressed, including the determinants of the co-evolution of deforestation and cattle herds, the possibility of production specialization, and the role of cattle in household livelihoods. Panel data suggest that households have changed focus from crop introduction to cattle. Empirical models reveal that location, wealth, and education are among the important determinants of production decisions and cattle accumulation. Policy recommendations include a focus on the cattle... |
| Tipo: Journal Article |
Palavras-chave: Latin America; Brazil; Household production; Land use; Cattle; Deforestation; Land Economics/Use; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/10233 |
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| Registros recuperados: 311 | |
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