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	Provedor de dados AgEcon (18) Autor Almas, Lal K. (11) Amosson, Stephen H. (5) Colette, W. Arden (5) Lust, David G. (5) Guerrero, Bridget L. (4) Johnson, Jeffrey W. (4) Hudson, Darren (3) Golden, Bill B. (2) Taylor, Robert H. (2) Tewari, Rachna (2) Weinheimer, Justin (2) Wheeler-Cook, Erin (2) Adusumilli, Naveen C. (1) Ahamadou, Aly (1) Bordovsky, James P. (1) Bretz, Fran E. (1) Brooks, Kathleen R. (1) Brozovic, Nicholas (1) Das, Biswa R. (1) Dembele, Mamadou (1) Mais... Palavra-chave Ogallala Aquifer (18) Resource /Energy Economics and Policy (11) Environmental Economics and Policy (7) Crop Production/Industries (6) Q32 (6) Q38 (5) Texas Panhandle (5) Farm Management (4) Land Economics/Use (4) Production Economics (4) Q30 (4) Agribusiness (3) Agricultural and Food Policy (3) Groundwater Conservation (3) Q15 (3) Water Management Policy (3) Water policy (3) Community/Rural/Urban Development (2) Crop-Livestock Systems (2) ET (2) Mais... Tipo do documento Conference Paper or Presentation (12) Journal Article (4) Presentation (2) Ano 2012 (2) 2011 (3) 2010 (5) 2009 (3) 2008 (3) 2007 (2) Mais... País United States (18) Idioma Inglês (18)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 18 Primeira ... 1 ... Última Evaluating Dryland Crop/Livestock System Alternatives for Risk Management under Declining Irrigation in the Texas Panhandle AgEcon Lust, David G.; Almas, Lal K.; Stewart, Bob A.; Colette, W. Arden. Production budgets for dryland crop and crop/livestock systems are developed to estimate yields, costs and returns for dryland wheat and sorghum and for alternative dryland crop/livestock systems. A crop simulation model aids yield estimation. The yield and return distributions are used to estimate risk and relative risk for included alternatives. Tipo: Conference Paper or Presentation Palavras-chave: Relative Risk; Ogallala Aquifer; Crop-Livestock Systems; Wheat; Sorghum; Crop Production/Industries; Farm Management; Livestock Production/Industries; Production Economics; Productivity Analysis. Ano: 2009 URL: http://purl.umn.edu/46843 The Economic Value of Irrigation in the Texas Panhandle AgEcon Guerrero, Bridget L.; Wright, Andrew P.; Hudson, Darren; Johnson, Jeffrey W.; Amosson, Stephen H.. The Texas Panhandle relies largely on the Ogallala Aquifer for access to water for irrigated agricultural production. With current pumping rates and slow recharge rates, the aquifer will at some point in the future no longer be an economically viable source of water for agriculture. The objective of this study is to estimate the value of irrigated agriculture to the region. A hypothetical policy restriction is imposed which assumes a one hundred percent conversion to dryland agriculture. The study estimates the economic impact of such a change on producer income and the resulting socioeconomic impacts on communities in the region. Tipo: Conference Paper or Presentation Palavras-chave: Economic impacts; IMPLAN; Irrigated production; Ogallala Aquifer; Water policy; Community/Rural/Urban Development; Environmental Economics and Policy; Q18; Q32; Q38. Ano: 2010 URL: http://purl.umn.edu/56433 Economic Analysis of Water Conservation Policies in the Texas Panhandle AgEcon Taylor, Robert H.; Almas, Lal K.; Colette, W. Arden. Due to declining water availability from the Ogallala Aquifer, management policy alternatives for extending the life of the aquifer to sustain rural economies in the Texas Panhandle are evaluated. The study concludes that water conservation policies for the region significantly impact crop mix, resource usage, and net present value of farm profits over a sixty-year planning horizon. Tipo: Conference Paper or Presentation Palavras-chave: Ogallala Aquifer; Groundwater Conservation; Water Management Policy; Texas Panhandle; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/34836 Economic Efficiency of Short-Term Versus Long-Term Water Rights Buyouts AgEcon Wheeler, Erin A.; Golden, Bill B.; Johnson, Jeffrey W.; Peterson, Jeffrey M.. Because of the decline of the Ogallala Aquifer, water districts, regional water managers, and state water officers are becoming increasingly interested in conservation policies. This study evaluates both short-term and long-term water rights buyout policies. This research develops dynamic production functions for the major crops in the Texas Panhandle. The production functions are incorporated into optimal temporal allocation models that project annual producer behavior, crop choices, water use, and aquifer declines over 60 years. Results suggest that long-term buyouts may be more economically efficient than short-term buyouts. Tipo: Journal Article Palavras-chave: Dynamic production function; Nonlinear optimization; Ogallala Aquifer; Water rights buyout; Agribusiness; Environmental Economics and Policy; Q30; Q32; Q38. Ano: 2008 URL: http://purl.umn.edu/46987 Estimating the Spatial Distribution of Groundwater Demand In the Texas High Plains AgEcon Zhao, Shiliang; Wang, Chenggang; Bordovsky, James P.; Sheng, Zhuping; Gastelum, Jesus R.. Developing groundwater management plans requires a good understanding of the interdependence of groundwater hydrology and producer water use behavior. While state-of-the-art groundwater models require water demand data at highly disaggregated levels, the lack of producer water use data has held up the progress to meet that need. This paper proposes an econometric framework that links county-level crop acreage data to well-level hydrologic data to produce heterogeneous patterns of crop choice and irrigation practices within a county. Together with agronomic data on irrigation water requirements of various crops and irrigation practices, this model permits estimation of the water demand distribution within a county. We apply this model to a panel of 16... Tipo: Conference Paper or Presentation Palavras-chave: Discrete Choice Model; Random-coefficients Discrete Choice Model; Crop Choice; BLP; Groundwater; Texas High Plains; Ogallala Aquifer; Crop Production/Industries; Resource /Energy Economics and Policy. Ano: 2011 URL: http://purl.umn.edu/103931 Multi-year Water Allocation: A Policy Analysis for Groundwater Management and Conservation for Irrigated Agriculture AgEcon Tewari, Rachna; Almas, Lal K.; Lust, David G.. Heavy withdrawals from the most dependable source of groundwater in the Texas Panhandle, the Ogallala Aquifer, create an impending need for implementing water conservation policies. This study evaluates the policy option of multi-year water allocation coupled with water use restriction in four water deficit counties of Castro, Deafsmith, Parmer and Swisher over a sixty year planning horizon. Results indicate that the water use in the study area declines with progressive restriction rates accompanied by a substantial decrease in the net present value of net returns over sixty years and therefore it is important to analyze the socio-economic effects of implementing such a policy alternative. Tipo: Conference Paper or Presentation Palavras-chave: Multi-year allocation; Ogallala Aquifer; Texas Panhandle; Water conservation; Environmental Economics and Policy; Farm Management; Resource /Energy Economics and Policy. Ano: 2011 URL: http://purl.umn.edu/98737 Groundwater Policy Research: Collaboration with Groundwater Conservation Districts in Texas AgEcon Johnson, Jeffrey W.; Johnson, Phillip N.; Guerrero, Bridget L.; Weinheimer, Justin; Amosson, Stephen H.; Almas, Lal K.; Golden, Bill B.; Wheeler-Cook, Erin. The unique nature of the Ogallala Aquifer presents interesting and confounding problems for water policymakers who are coping with changing groundwater rules in Texas. The purpose of this article is to link previous efforts in water policy research for the Ogallala Aquifer in Texas with current collaborations that are ongoing with regional water planners. A chronological progression of economic water modeling efforts for the region is reviewed. The results of two recent collaborative studies are presented that provide estimates of impacts of alternative policies on groundwater saturated thickness, water use, net farm income, and regional economic activities. Tipo: Journal Article Palavras-chave: Groundwater economics; Ogallala Aquifer; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q30; Q32; Q38. Ano: 2011 URL: http://purl.umn.edu/117941 Economic Value of Groundwater Resources and Irrigated Agriculture in the Oklahoma Panhandle AgEcon Almas, Lal K.; Colette, W. Arden; Adusumilli, Naveen C.. An economic optimization model was developed using available groundwater resources in the Oklahoma Panhandle to estimate value of water for irrigated agriculture in the area. The model will serve as policy tool to analyze alternative water management strategies and conservation programs to assess the economic impact of depleting Ogallala Aquifer. Tipo: Conference Paper or Presentation Palavras-chave: Ogallala Aquifer; Irrigated Agriculture; Groundwater Conservation; Water Management Policy; Oklahoma Panhandle; Resource /Energy Economics and Policy. Ano: 2008 URL: http://purl.umn.edu/6714 Macroeconomic Impacts of Water Use in Agriculture AgEcon Weinheimer, Justin; Wheeler-Cook, Erin; Ethridge, Don E.; Hudson, Darren. The recent/current recession provides the opportunity to study the effects of the macroeconomic changes on the agricultural production systems in the Great Plains and trace some of its impacts through the system to changes in primary inputs such water resource use. Therefore, the objective of the study reported here was to determine the effects of the changes in macroeconomic conditions driven by the 2008 recession on irrigated crop production in a portion of the Southern Great Plains and its impacts on water use. The approach for the study was to: (1) use the 10-year baseline FAPRI projections, based on changes in macroeconomic conditions, of agricultural commodity prices and input costs between the beginning of 2008 and the beginning of 2009, and (2)... Tipo: Conference Paper or Presentation Palavras-chave: Ogallala Aquifer; Recession; Macroeconomic; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy; E00; Q15; Q30; Q31. Ano: 2010 URL: http://purl.umn.edu/56456 Analyzing the Potential Water Conservation Strategies: An Application to Irrigated Agriculture in the Texas Panhandle AgEcon Tewari, Rachna; Almas, Lal K.; Lust, David G.; Amosson, Stephen H.; Bretz, Fran E.. Witnessing a rapid surge in irrigation requirements as well as the pressure on natural resources to augment production for satisfying grain demand for the growing human and livestock population, ground water supply in the Texas Panhandle reflects itself as a limiting yet indispensable factor. This study evaluates the effectiveness of eight potential water management strategies in terms of water savings, implementation costs as well as the regional impact of each policy on the agricultural economy of Region A, comprising 21 counties in the North Texas High Plains, over a fifty-year planning horizon. Tipo: Conference Paper or Presentation Palavras-chave: Ogallala Aquifer; Water Management strategies; Texas Panhandle; Regional Impacts; Agricultural and Food Policy; Environmental Economics and Policy; Resource /Energy Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/56393 Water use efficiency and maximizing profitability of grain sorghum production in the Texas Panhandle AgEcon Ahamadou, Aly; Dembele, Mamadou; Almas, Lal K.; Brooks, Kathleen R.. The reduction in the availability of irrigation water and the increase in pumping costs resulting from the decline in the Ogallala Aquifer make good management decisions more critical for the survival of the farm firm and the success of the agricultural sector in the Texas Panhandle. Response functions for irrigation and percentage potential evapotranspiration (PET) in the production of grain sorghum are estimated. The response functions are transferred into value product functions and combined with an irrigation energy cost function to determine the profit maximizing irrigation strategy. Three management decision variables; total water available, the level of irrigation and the water to meet crop ET requirements are evaluated. Grain sorghum yield,... Tipo: Presentation Palavras-chave: Grain sorghum; ET; Maximizing profit; Irrigation efficiency; Input use optimization; Water conservation; Ogallala Aquifer; Texas Panhandle.; Farm Management; Production Economics; Productivity Analysis; Resource /Energy Economics and Policy; Q12; Q15; Q25; Q32; And Q34. Ano: 2012 URL: http://purl.umn.edu/119801 Estimation of Farm-Forward Regional Economic Impacts for the North Plains Groundwater Conservation District in Texas AgEcon Guerrero, Bridget L.; Dudensing, Rebekka M.; McCorkle, Dean A.; Hanselka, Daniel D.; Hudson, Darren; Amosson, Stephen H.. Impacts of alternative agricultural water conservation strategies are being evaluated in the Texas Panhandle. Stakeholders have expressed concern that all effects need to be accounted for including the regional economy. A methodology was developed to evaluate the effects on the backward and forward-linked processing sectors and differentiated results are presented. Tipo: Presentation Palavras-chave: Backward-linked; Forward-linked; IMPLAN; Ogallala Aquifer; Water policy; Resource /Energy Economics and Policy; Q18; Q32; Q38. Ano: 2012 URL: http://purl.umn.edu/119823 Reducing Irrigation Water Demand with Cotton Production in West Texas AgEcon Almas, Lal K.; Colette, W. Arden; Warminski, Patrick L.. Due to declining water availability from the Ogallala Aquifer and increasing pumping costs, irrigation management options for cotton are analyzed. The study concludes that supplemental irrigation while meeting crop ET requirements is the most profitable option. Switching from corn to cotton production may reduce irrigation water demand in the region. Tipo: Conference Paper or Presentation Palavras-chave: Ogallala Aquifer; Irrigated cotton; Irrigation efficiency; Water response function; Input use optimization; ET; Texas Panhandle; Crop Production/Industries; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/34848 Irrigation Technology Adoption Under Factor Price Uncertainty: Groundwater- Irrigated Production in Nebraska, 1960 -- 2005 AgEcon Savage, Jeff; Brozovic, Nicholas. The development of groundwater-irrigated production technologies, fed by water from the Ogallala Aquifer, facilitated the development of agriculture in the High Plains region of the United States that began during the 1960s. The current rate of pumping for irrigation in the region is causing the aquifer to be depleted in many areas, which is cause for concern from a socioeconomic and environmental standpoint. The goal of this paper is to assess the factors that affect the decision to adopt groundwater-irrigated production by farmers, in the presence of risk differentiated by heterogeneous farmland quality and groundwater depth. A binary choice model of adoption is estimated for Nebraska, from 1960 – 2005. The results suggest that farmers consider climate... Tipo: Conference Paper or Presentation Palavras-chave: Irrigation; Technology Adoption; Risk; Ogallala Aquifer; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Q15; Q32; Q55. Ano: 2009 URL: http://purl.umn.edu/49585 Water Conservation Policy Alternatives for the Ogallala Aquifer in the Texas Panhandle AgEcon Taylor, Robert H.; Almas, Lal K.; Lust, David G.. The continued decline in the availability of water from the Ogallala Aquifer has led to an increased interest in conservation policies designed to extend the life of the aquifer to sustain rural economies in the Texas Panhandle. This study evaluates the effectiveness of five policies in terms of changes in the saturated thickness of the aquifer as well as the impact each policy has on crop mix, water use per acre, and the net present value of farm profits over a sixty-year planning horizon for the region. Tipo: Conference Paper or Presentation Palavras-chave: Ogallala Aquifer; Groundwater Conservation; Water Management Policy; Texas Panhandle; Agricultural and Food Policy; Environmental Economics and Policy; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy. Ano: 2009 URL: http://purl.umn.edu/46746 Alternative Livestock/Dryland Forage Systems in the Texas Panhandle AgEcon Lust, David G.; Almas, Lal K.; Colette, W. Arden; Schlater, Leah M.. Optimization models are developed to determine grazing alternatives for individual dryland producers. Models alternatives include wheat, sorghum-sudan, summer perennial grass, and native range. Precipitation risk and price risk are estimated for seasonal production alternatives, and options that reduce both price risk and production risk are examined. Tipo: Conference Paper or Presentation Palavras-chave: Relative Risk; Ogallala Aquifer; Crop-Livestock Systems; Wheat; Crop Production/Industries; Farm Management; Land Economics/Use; Livestock Production/Industries; Risk and Uncertainty. Ano: 2010 URL: http://purl.umn.edu/56533 Integrating Stakeholder Input into Water Policy Development and Analysis AgEcon Guerrero, Bridget L.; Amosson, Stephen H.; Almas, Lal K.. Agricultural water use is becoming an issue in much of the South due to population growth. Results of projects evaluating the impacts of conservation strategies aimed at reallocating or extending the life of water supplies are being met with great skepticism by stakeholder groups. In order to gain acceptance of results, it is essential that stakeholder groups be involved from the beginning in the identification of potential water conservation strategies and be kept informed throughout the project. The objective of this paper is to review previous attempts at involving stakeholders and the methodology currently being employed in the Ogallala Aquifer Project. Tipo: Journal Article Palavras-chave: Conservation; Ogallala Aquifer; Stakeholder; Water policy; Agribusiness; Agricultural and Food Policy; Consumer/Household Economics; Q250; Q280. Ano: 2008 URL: http://purl.umn.edu/46984 Effectiveness of Two Water Conservation Policies: An Integrated Modeling Approach AgEcon Das, Biswa R.; Willis, David B.; Johnson, Jeffrey W.. Agriculture in the Texas High Plains depends entirely on the Ogallala Aquifer. Texas enacted water conservation legislation to address declining reserves in the aquifer. We developed an integrated regional water policy model that links a hydrology model with an economic optimization model to estimate policy impacts with respect to economic cost and water conservation. Testing the effectiveness of two policies, a groundwater extraction tax and extraction quotas, we observe that neither significantly inhibits groundwater use. Although both policies conserve similar amounts of groundwater, the regional cost of the tax policy to agriculture is more than the quota policy. Tipo: Journal Article Palavras-chave: Integrated regional water policy model; Texas High Plains; Water conservation policy; Hydrology model; Economic optimization model; Ogallala Aquifer; Tax policy; Quota policy; Agribusiness; Community/Rural/Urban Development; Food Security and Poverty; Land Economics/Use; Political Economy; Q30; Q31; Q38. Ano: 2010 URL: http://purl.umn.edu/100523 Registros recuperados: 18 Primeira ... 1 ... Última

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