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Brigham Young University

Conference

2018

Agriculture

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Integrating Socio-Environmental Models: Vegetation, Agriculture, And Landform Dynamics, Miguel Acevedo, William Boyd, Hessam Sarjoughian, Isaac Ullah, Michael Barton Jun 2018

Integrating Socio-Environmental Models: Vegetation, Agriculture, And Landform Dynamics, Miguel Acevedo, William Boyd, Hessam Sarjoughian, Isaac Ullah, Michael Barton

International Congress on Environmental Modelling and Software

How did landscapes evolve as agriculture emerged thousands of year ago? How do we ensure sustainable food production and still maintain environmental quality? Integrated socio-environmental models help provide answers to these two seemingly distant, yet related questions. For practical purposes, in this paper we use the terms socio-ecological and socio-environmental systems, with acronym SES as synonyms. The Mediterranean Landscape Dynamics (MedLand) project aims to develop experimental SES models made possible by recent advances in computation while exercising interdisciplinary collaboration. In this paper, we exemplify one aspect of this integration by discussing the development of a vegetation model, which at the …


Simulating Hydroeconomic Impacts Of Potential Water Rights Trade In The Lake Naivasha Basin Using A Mopec Modeling Framework, Tesfaye Woldeyohanes, Arnim Kuhn Dr. Jun 2018

Simulating Hydroeconomic Impacts Of Potential Water Rights Trade In The Lake Naivasha Basin Using A Mopec Modeling Framework, Tesfaye Woldeyohanes, Arnim Kuhn Dr.

International Congress on Environmental Modelling and Software

We use an integrated hydroeconomic model for Lake Naivasha Basin, Kenya (LANA-HEBAMO) to analyze the impact of institutional and biophysical changes on resource allocation and water system performance. An extended mathematical programming approach called MOPEC (multiple optimization problems with equilibrium constraint) is used. This approach allows each economically independent water user to maximize its own objective function subject to another agent’s water use decisions as well as other biophysical and institutional constraints. MOPEC is an individual optimization approach and avoids unrealistic assumptions in aggregate optimization that assume omniscient decision maker with perfect foresight to reallocate water such that the water …


Comparing System Dynamics And Agent Based Modeling Methods Through Their Application In A Single Case Study, Ravi Gorripati, Nagesh Kolagani, Uma Garimella, Palaniappan Ramu Jun 2018

Comparing System Dynamics And Agent Based Modeling Methods Through Their Application In A Single Case Study, Ravi Gorripati, Nagesh Kolagani, Uma Garimella, Palaniappan Ramu

International Congress on Environmental Modelling and Software

Participatory modeling helps stakeholders to understand their problems and arrive at mutually acceptable solutions through what-if scenario analysis. Several papers comparing use of different participatory modeling methods in different contexts across the world are available in the literature. A novel contribution of our paper is simultaneous use of two such methods, system dynamics and agent based modeling, to address the same problem in a single case study and compare their results. We apply these two methods to model crop-water-market dynamics in a south Indian village over last fifty years. While building system dynamics model, causal loop diagram was drawn by …


Modeling Dynamic Feedbacks Between Water Supply And Water Use In A Snow-Fed Agricultural Basin, Richard Niswonger, Eric D. Morway, Wesley Kitlasten, Murphy Gardner, Enrique Triana, Steve Regan Jun 2018

Modeling Dynamic Feedbacks Between Water Supply And Water Use In A Snow-Fed Agricultural Basin, Richard Niswonger, Eric D. Morway, Wesley Kitlasten, Murphy Gardner, Enrique Triana, Steve Regan

International Congress on Environmental Modelling and Software

Hydrologic models are used to evaluate past water budgets and future water supplies in developed river basins. Moreover, models are commonly used to evaluate alternative management options for enhancing water supply or to estimate anticipated impacts of climate and land-use change. Principal to these analyses is the realistic representation of feedbacks between water supply and water use. In agricultural basins, these feedbacks are complicated by water governance used to allocate water during periods of limited water supply. Most hydrologic studies develop models with predetermined water use and proceed to evaluate impacts on water resources. This approach has historically worked well …


Economic Viability And Environmental Impact Of Processing Arid Crops In The American Southwest, Hailey Summers, Evan Sproul, Jason Quinn Jun 2018

Economic Viability And Environmental Impact Of Processing Arid Crops In The American Southwest, Hailey Summers, Evan Sproul, Jason Quinn

International Congress on Environmental Modelling and Software

Drought represents a significant risk for agricultural producers in the American Southwest. One method for limiting this risk is planting high value crops that are drought resilient. Two such crops, Guayule and Guar, are native to arid climates and produce a broad range of valuable products including natural rubber, guar gum, and biofuels. This work outlines two process models used to evaluate the efficiency of converting raw Guayule and Guar biomass into final products. The process models are leveraged to develop life cycle (LCA) and techno-economic analyses (TEA) that will be used to evaluate the social, environmental and economic feasibility …


Comet-Planner: Carbon And Greenhouse Gas Evaluation For Usda-Nrcs Conservation Practice Planning, Amy Swan, Mark Easter, Kevin Brown, Mark Layer, Keith Paustian Jun 2018

Comet-Planner: Carbon And Greenhouse Gas Evaluation For Usda-Nrcs Conservation Practice Planning, Amy Swan, Mark Easter, Kevin Brown, Mark Layer, Keith Paustian

International Congress on Environmental Modelling and Software

Conservation planners must assess a range of environmental, agronomic and economic impacts of implementing conservation practices on farms. While environmental impacts such as soil erosion control, improved soil quality, reduced nonpoint source pollution and a number of other site-specific benefits are currently considered, conservation practices may also have significant climate benefits, through carbon sequestration and/or reduction of greenhouse gas (GHG) emissions. If conservation planners wish to incorporate greenhouse gas impacts in their planning process, they will need access to quick, easy-to-use tools to assess greenhouse gas impacts of conservation practices on farms. COMET-Planner (www.comet-planner.com) was developed to provide …