|Author:||Balkhair, K. S.|
|Book Group Author:||NA|
This study evaluated five crops grown economically with groundwater supply shortage at the Agriculture Research Station, King Andulaziz University in the Makka region, Saudi Arabia. It further calculates the possible water savings under two production policies using linear programming as a mathematic model in the economic evaluation process. The station's historical records of production and expenses were utilized during model formation. Two production policies were adopted under the conditions of water availability and shortage. These are open and restricted production policy. Consequently, the mathematical model was built containing appropriate objective function and constraints for each policy. Optimal production and income was obtained by solving the linear programming problem. Sensitivity analysis was conducted and the effect of objective function coefficient and available resources on the solution was determined and water savings were also calculated. An open production policy leads up to 58% of water savings and achieved 32% more income than the restricted production policy. Results also showed that shortage in groundwater supply in both policies leads to direct reduction in income. A linear relationship was obtained between them.
|Pages:||190 - 199|
|Journal:||Arab Gulf Journal of Scientific Research|
crop production, groundwater, production policy, wateravailability, water conservation, water policy, water supply, SaudiArabia, West Asia, Asia, Middle East, Developing Countries, watersupplies, Forestry Economics (EE112) (New March 2000), Policy andPlanning (EE120), Plant Production (FF100), Water Resources (PP200)