Application of Game Theory to Determining Optimal Harvesting of Water Resources and Determination of Optimal cropp pattern (Case study: Gharesu basin)

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MEFTAH HALAGHI M.; GHORBANI KH.; KERAMATZADEH A.; SALARIJAZI M.

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Journal: Journal of Water and Soil Conservation Year:2021 | Volume:27 | Issue:5 Page(s): 69-87

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Title

Application of Game Theory to Determining Optimal Harvesting of Water Resources and Determination of Optimal cropp pattern (Case study: Gharesu basin)

Author(s)

MEFTAH HALAGHI M. | GHORBANI KH. | KERAMATZADEH A. | SALARIJAZI M. | Issue Writer Certificate

Keywords

Conflict resolution

Game theory

Optimal crop pattern

Optimal harvesting value

Water resources management

Abstract

Background and Objectives: Determining the optimal water consumption in Iran with a large percentage of arid and semi-arid climates is of high importance. So far, several methods have been used, including linear and goal programming. Applying Game theory method to solve management problems that facing conflicts between goals can be a different approach to optimizing water use in agriculture. It can offer a different approach to optimizing water use in agriculture. Therefore, in this study crop pattern and the optimal harvesting of groundwater resources was determined in Ghare-Su basin. Materials and Methods: Golestan province, despite being located in the northern regions of Iran, has a lower share of rainfall than other northern provinces. Also, most of the water needs in this province are supplied from groundwater resources, which if not properly managed, will face the risks of reducing the level of groundwater aquifer. So, the cities of Gorgan and Kordkuy in west of Golestan province, located in Gharasso basin, are considered as a study area in this research. After providing information on the area of cultivation, the cost of production and the price of sales of major agricultural products, net irrigation demand was calculated considering irrigation efficiency the potential of water resorces and recharge basin from Regional Water Company of golestan. After preparing the data, by considering water resource constraints and arable lands and also considering the goals of increasing profits and reducing water use to optimize the water harvesting values was determined by Game theory Conflict resolution methodology that including non-symmetric Nash equilibrium, Kalai-Smordinsky solution, area monotic solution and equal loss function method. Results: The optimal operation of water resources with non-symmetric Nash equilibrium, KalaiSmordinsky solution and equal loss function method of Game theory while considering equal weight for economic and environmental purposes and It is equal to 205 million cubic meters per year and optimum harvesting value was obtained 183 million cubic meters per year by using area monotic solution. This is in a situation that is considered for economic purposes as 0. 575 weight and for environmental purposes as a weight 0. 475. Therefore, the harvesting of water resources can be reduced by 43% to 49% to achieve environmental goals. In this method, planting of crops such as cotton, tomato, barley and soybean in Gorgan and barley in Kordkoye city is not recommended. Wheat is also the most cultivated area in Gorgan and spring soybean in Kordkoye. Conclusion: The results showed that the current cultivation pattern is not in the optimal condition and also the current harvesting value is higher than the aquifer recharge. Therefore, using Game theory, the crop pattern and Optimal harvesting value can be determined in a way that economic and environmental goals were met by applying different weights.

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APA: Copy

MEFTAH HALAGHI, M., GHORBANI, KH., KERAMATZADEH, A., & SALARIJAZI, M.. (2021). Application of Game Theory to Determining Optimal Harvesting of Water Resources and Determination of Optimal cropp pattern (Case study: Gharesu basin). JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 27(5 ), 69-87. SID. https://sid.ir/paper/957419/en

Vancouver: Copy

MEFTAH HALAGHI M., GHORBANI KH., KERAMATZADEH A., SALARIJAZI M.. Application of Game Theory to Determining Optimal Harvesting of Water Resources and Determination of Optimal cropp pattern (Case study: Gharesu basin). JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2021;27(5 ):69-87. Available from: https://sid.ir/paper/957419/en

IEEE: Copy

M. MEFTAH HALAGHI, KH. GHORBANI, A. KERAMATZADEH, and M. SALARIJAZI, “Application of Game Theory to Determining Optimal Harvesting of Water Resources and Determination of Optimal cropp pattern (Case study: Gharesu basin),” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 27, no. 5 , pp. 69–87, 2021, [Online]. Available: https://sid.ir/paper/957419/en

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