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	Provedor de dados AgEcon (3) Autor Bucholtz, Shawn (1) Claassen, Roger (1) Cooper, Joseph C. (1) Gueorguieva, Anna (1) James, Laura (1) Johansson, Robert C. (1) Leatham, David J. (1) Lubowski, Ruben N. (1) Mitchell, Paul D. (1) Roberts, Michael J. (1) Seo, Sangtaek (1) Mais... Palavra-chave Extensive margin (3) Crop insurance (2) Environmental Economics and Policy (2) Agribusiness (1) Agricultural and Food Policy (1) Agriculture and Environment (1) Biofuel (1) Biomass (1) Community/Rural/Urban Development (1) Conservation Reserve Program (CRP) (1) Crop Production/Industries (1) Erosion (1) Farm policy (1) Imperiled species (1) Intensive margin (1) Irrigation (1) Land Economics/Use (1) Land Reform (1) Land Use (1) Land quality (1) Mais... Tipo do documento Journal Article (1) Report (1) Thesis or Dissertation (1) Ano 2010 (1) 2006 (1) 2005 (1) País United States (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Theory and Identification of Marginal Land and Factors Determining Land Use Change AgEcon James, Laura. Biomass is being researched as a possible alternative to fossil sources of energy, in order to avoid externalities from fossil fuel use that affect the environment and the economy. Some biomass-based energy production systems may produce unwanted externalities in their own right, such as increasing the production pressure on the agricultural land base, resulting in a rise in prices of food commodities. Using marginal land for biomass production has been suggested as a solution. However, the definition of what constitutes marginal land is poorly understood. This paper provides a theoretical foundation for identification of marginal lands, and analyzes recent literature to assess how current usage of the term marginal correspond to the theoretical... Tipo: Thesis or Dissertation Palavras-chave: Biomass; Biofuel; Marginal lands; Extensive margin; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy; Q15 Land Ownership and Tenure; Land Reform; Land Use; Irrigation; Agriculture and Environment; Q28 Government Policy; Q42 Alternative Energy Sources; Q48 Government Policy; R14 Land Use Patterns; R52 Land Use and Other Regulations. Ano: 2010 URL: http://purl.umn.edu/98203 ENVIRONMENTAL EFFECTS OF AGRICULTURAL LAND-USE CHANGE: THE ROLE OF ECONOMICS AND POLICY AgEcon Lubowski, Ruben N.; Bucholtz, Shawn; Claassen, Roger; Roberts, Michael J.; Cooper, Joseph C.; Gueorguieva, Anna; Johansson, Robert C.. This report examines evidence on the relationship between agricultural land-use changes, soil productivity, and indicators of environmental sensitivity. If cropland that shifts in and out of production is less productive and more environmentally sensitive than other cropland, policy-induced changes in land use could have production effects that are smaller-and environmental impacts that are greater-than anticipated. To illustrate this possibility, this report examines environmental outcomes stemming from landuse conversion caused by two agricultural programs that others have identified as potentially having important influences on land use and environmental quality: Federal crop insurance subsidies and the Conservation Reserve Program (CRP), the Nation's... Tipo: Report Palavras-chave: Conservation Reserve Program (CRP); Crop insurance; Erosion; Extensive margin; Farm policy; Imperiled species; Land use; Land-use change; Land quality; Nutrient loss; Soil productivity; Environmental Economics and Policy; Land Economics/Use. Ano: 2006 URL: http://purl.umn.edu/33591 Effects of Federal Risk Management Programs on Optimal Acreage Allocation and Nitrogen Use in a Texas Cotton-Sorghum System AgEcon Seo, Sangtaek; Mitchell, Paul D.; Leatham, David J.. We analyze the effects of crop insurance and the Marketing Loan Program on optimal nitrogen use and acreage allocation for a case cotton-sorghum farm in Texas. A mathematical programming model is used to solve for the optimal nitrogen fertilizer rate, crop acreage allocation, coverage level, and price election factor, along with participation in the crop insurance and the Marketing Loan Program for both crops. Results show that depending on the crop and farmer risk aversion, these federal risk management programs increase or decrease optimal fertilizer rates-6% to 3%, increase optimal cotton acreage 94% to 144%, and decrease sorghum acres up to 50%. Tipo: Journal Article Palavras-chave: Crop insurance; Extensive margin; Intensive margin; Loan deficiency payments; Revenue insurance; Q12; Q18. Ano: 2005 URL: http://purl.umn.edu/43503 Registros recuperados: 3 Primeira ... 1 ... Última

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