A Decision Support System for Evaluating the Effects of Alternative Farm Management Systems on Water Quality and Economics
A prototype Multi-Objective Decision Support System (MODSS) for water quality has been developed by the Agricultural Research Service at the Southwest Watershed Research Center in Tucson, Arizona. The Decision Support System uses a simulation model to predict the impact of alternative management sys...
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| Veröffentlicht in: | Water science and technology 1993-01, Vol.28 (3-5), p.47-54 |
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| creator | Yakowitz, D S Stone, J J Lane, L J Heilman, P Masterson, J Abolt, J Imam, B |
| description | A prototype Multi-Objective Decision Support System (MODSS) for water quality has been developed by the Agricultural Research Service at the Southwest Watershed Research Center in Tucson, Arizona. The Decision Support System uses a simulation model to predict the impact of alternative management systems on surface and groundwater quality as well as farm income. The results of the simulation, which includes modeling of hydrology, erosion, nutrient and pesticide transport, crop growth and economics, are analyzed with respect to the multiple objectives of reducing surface and groundwater pollution while maintaining or improving farm income. Often these objectives are in conflict and objectively discerning which practice is preferred can be a difficult task. The multi-objective decision making component of the decision support system makes use of dimensionless utility functions and the concept of importance order dominance. The MODSS allows the user to set up alternatives, choose the decision criteria, and accept or customize the decision mode settings. The results are presented graphically as well as in tabular form. The dominance of one practice over another, if it exists, is clearly evident in the graphical presentation. We illustrate the decision component of the MODSS with pictures of the screens from an example which uses the simulation results of several management alternatives on farmland in the Deep Loess Soil Major Land Resource Area near Treynor, Iowa. |
| doi_str_mv | 10.2166/wst.1993.0402 |
| format | Article |
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The Decision Support System uses a simulation model to predict the impact of alternative management systems on surface and groundwater quality as well as farm income. The results of the simulation, which includes modeling of hydrology, erosion, nutrient and pesticide transport, crop growth and economics, are analyzed with respect to the multiple objectives of reducing surface and groundwater pollution while maintaining or improving farm income. Often these objectives are in conflict and objectively discerning which practice is preferred can be a difficult task. The multi-objective decision making component of the decision support system makes use of dimensionless utility functions and the concept of importance order dominance. The MODSS allows the user to set up alternatives, choose the decision criteria, and accept or customize the decision mode settings. The results are presented graphically as well as in tabular form. The dominance of one practice over another, if it exists, is clearly evident in the graphical presentation. 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The dominance of one practice over another, if it exists, is clearly evident in the graphical presentation. We illustrate the decision component of the MODSS with pictures of the screens from an example which uses the simulation results of several management alternatives on farmland in the Deep Loess Soil Major Land Resource Area near Treynor, Iowa.</abstract><cop>London</cop><pub>IWA Publishing</pub><doi>10.2166/wst.1993.0402</doi><tpages>8</tpages></addata></record> |
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| ispartof | Water science and technology, 1993-01, Vol.28 (3-5), p.47-54 |
| issn | 0273-1223 1996-9732 |
| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Agricultural economics Agricultural land Agricultural research Agrochemicals Alternative farming Computer simulation Crop growth Crops Customization Decision making Decision support systems Dominance Economic analysis Economics Erosion Farm income Farm management Farming Farmlands Farms Groundwater Groundwater pollution Groundwater quality Hydrology Land resources Loess Management Management systems Mathematical models Mineral nutrients Modelling Multiple objective analysis Nutrient transport Nutrients Pesticides Pictures Pollution Profitability Prototypes Resource management Resources Screens Simulation Soil Water pollution Water quality Watersheds |
| title | A Decision Support System for Evaluating the Effects of Alternative Farm Management Systems on Water Quality and Economics |
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