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	Provedor de dados AgEcon (11) Autor Wiebe, Keith D. (11) Breneman, Vincent E. (1) Claassen, Roger (1) Gadsby, Dwight M. (1) Gollehon, Noel R. (1) Heimlich, Ralph E. (1) House, Robert M. (1) Maxwell, Daniel G. (1) Narrod, Clare A. (1) Rosen, Stacey L. (1) Soule, Meredith J. (1) Mais... Palavra-chave Productivity Analysis (7) Food Security and Poverty (5) Land Economics/Use (5) Agricultural productivity (3) Food Consumption/Nutrition/Food Safety (2) Food security (2) Land quality (2) Resource /Energy Economics and Policy (2) Soil erosion (2) Wetlands (2) "no net loss" (1) AREI (1) Agricultural economics (1) Agricultural research (1) Agriculture--Economic aspects--Research (1) Animal agriculture (1) Biotechnology (1) Conservation (1) Conservation policy (1) Conventional agriculture (1) Mais... Tipo do documento Conference Paper or Presentation (6) Report (4) Working or Discussion Paper (1) Ano 2006 (1) 2004 (2) 2003 (2) 2001 (2) 2000 (1) 1998 (3) Mais... País United States (11) Idioma Inglês (11)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 11 Primeira ... 1 ... Última Agricultural Resources and Environmental Indicators, 2006 Edition AgEcon Wiebe, Keith D.; Gollehon, Noel R.. This is a large file. We have had reports of problems opening the file in Mozilla Firefox. If you have problems, try using Windows Internet Explorer. Tipo: Report Palavras-chave: ERS; AREI; Agricultural economics; Natural resources; Land; Land use; Land values; Land ownership; Water use; Irrigation; Water quality; Genetic resources; Biotechnology; Agricultural research; Agricultural productivity; Global resources; Soil conservation; Soil erosion; Pest management; Nutrient management; Animal agriculture; Organic agriculture; Conventional agriculture; Conservation policy; Land retirement; Working lands; Wetlands; Farmland protection; Environmental quality; Farm structure; Farm ownership; Farm management decisions; Farm business; Environmental Economics and Policy; Resource /Energy Economics and Policy. Ano: 2006 URL: http://purl.umn.edu/7207 FARMERS’ CHOICES, LAND QUALITY, AND AGRICULTURAL PRODUCTIVITY AgEcon Wiebe, Keith D.. Tipo: Conference Paper or Presentation Palavras-chave: Land Economics/Use; Productivity Analysis. Ano: 2004 URL: http://purl.umn.edu/32984 LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY AT LOCAL, REGIONAL, AND GLOBAL SCALES AgEcon Wiebe, Keith D.. Econometric and simulation analyses indicate that land degradation does not threaten agricultural productivity growth and food security at the global level, but problems exist in some areas. Improving market performance could reduce erosion-induced yield losses to 0.1 percent per year and the number of hungry people in less-developed countries by 5 percent over 10 years. Tipo: Conference Paper or Presentation Palavras-chave: Land quality; Agricultural productivity; Food security; Food Security and Poverty; Productivity Analysis. Ano: 2003 URL: http://purl.umn.edu/22015 LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY: BIOPHYSICAL PROCESSES AND ECONOMIC CHOICES (PowerPoint Presentation) AgEcon Wiebe, Keith D.. PowerPoint presentation Tipo: Conference Paper or Presentation Palavras-chave: Food Security and Poverty; Land Economics/Use; Productivity Analysis. Ano: 2004 URL: http://purl.umn.edu/32974 LAND TENURE AND FOOD SECURITY: A REVIEW OF CONCEPTS, EVIDENCE, AND METHODS AgEcon Maxwell, Daniel G.; Wiebe, Keith D.. This paper attempts to build on a conceptual analysis of both land tenure and food security to set various links in a dynamic framework that captures both the effects of access to resources on food security and the effects of food security on access to and use of resources. This framework is used to examine a range of issues arising in empirical research and to discuss their implications for future research related to land policy and food policy. The paper first reviews the conceptual literature on both land tenure and food security and suggests a new conceptual framework that incorporates the dynamic linkages between the two. Second, it reviews the existing empirical literature to raise for discussion a number of issues that mediate suggested linkages and... Tipo: Working or Discussion Paper Palavras-chave: Agriculture--Economic aspects--Research; Food supply--Research; Land research--Methodology; Land tenure--Research; Food Security and Poverty; Land Economics/Use. Ano: 1998 URL: http://purl.umn.edu/12752 LINKING LAND QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY AgEcon Wiebe, Keith D.. Land quality and land degradation affect agricultural productivity, but quantifying these relationships has been difficult. Data are limited, and impacts are sensitive to the choices that farmers make. Summarizing new research by economists, soil scientists, and geographers, this report explores the extent to which land quality and land degradation affect agricultural productivity, how farmers' responses to land degradation are influenced by economic, environmental, and institutional factors, and whether land degradation poses a threat to productivity growth and food security. Results suggest that land degradation does not threaten food security at the global scale, but does pose problems in areas where soils are fragile, property rights are insecure, and... Tipo: Report Palavras-chave: Land quality; Land degradation; Soil erosion; Agricultural productivity; Food security; Food Security and Poverty; Land Economics/Use; Productivity Analysis. Ano: 2003 URL: http://purl.umn.edu/34073 Natural Resources, Agricultural Productivity, and Food Security AgEcon Wiebe, Keith D.. Tipo: Report Palavras-chave: Food Security and Poverty; Productivity Analysis; Resource /Energy Economics and Policy. Ano: 2001 URL: http://purl.umn.edu/33608 RESOURCE QUALITY, AGRICULTURAL PRODUCTIVITY, AND FOOD SECURITY AgEcon Rosen, Stacey L.; Wiebe, Keith D.. USDA's Economic Research Service estimates that about 33 percent of the developing world's people suffer from insufficient food intake. Growth in agricultural productivity is critical to improvements in food security. We will examine the impact of changes in acreage and fertilizer response on production in 67 study countries and review the implications for food security. Tipo: Conference Paper or Presentation Palavras-chave: Food Consumption/Nutrition/Food Safety; Productivity Analysis. Ano: 2001 URL: http://purl.umn.edu/20737 RESOURCE QUALITY AND AGRICULTURAL PRODUCTIVITY: A MULTI-COUNTRY COMPARISON AgEcon Wiebe, Keith D.; Soule, Meredith J.; Narrod, Clare A.; Breneman, Vincent E.. This paper builds on earlier studies of agricultural productivity by incorporating spatially referenced soil and climate data combined with high-resolution land-cover data. Econometric analysis of these data, along with panel data on agricultural inputs and outputs from 110 countries for 1961-1997, quantifies the significant impact that differences in land quality have on agricultural productivity. Tipo: Conference Paper or Presentation Palavras-chave: Productivity Analysis. Ano: 2000 URL: http://purl.umn.edu/21723 SUSTAINABLE RESOURCE USE AND GLOBAL FOOD SECURITY AgEcon Wiebe, Keith D.. The notion of food security has advanced from a focus on food availability to one including access. Recent efforts to incorporate changes in natural and human resources into measures of income and wealth suggest the potential for further improvements in integrated analysis of sustainable resource use and global food security. Tipo: Conference Paper or Presentation Palavras-chave: Food Consumption/Nutrition/Food Safety. Ano: 1998 URL: http://purl.umn.edu/20832 Wetlands and Agriculture: Private Interests and Public Benefits AgEcon Heimlich, Ralph E.; Wiebe, Keith D.; Claassen, Roger; Gadsby, Dwight M.; House, Robert M.. Society has recently increased the value it places on the services that wetlands provide, including water quality improvements, flood control, wildlife habitat, and recreation. However, owners of wetlands are often unable to profit from these services because the benefits created are freely enjoyed by many. This report examines differences between public and private incentives regarding wetlands. Federal wetland policy has shifted in recent decades--from encouraging wetland conversion to encouraging wetland protection and restoration--in an effort to balance public and private objectives. The report assesses the need for continued wetlands protection policies as the United States approaches achieving the goal of no net loss of wetlands. Tipo: Report Palavras-chave: Wetlands; "no net loss"; Swampbuster; Conservation; Restoration; Land Economics/Use. Ano: 1998 URL: http://purl.umn.edu/34043 Registros recuperados: 11 Primeira ... 1 ... Última

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