The Aapplication of Integrated Electra Model and Weighted Linear Combination in Fuzzy Environment in Order to Prioritize Alternatives to Deal with Combat Desertification

Subject Areas : natural sources

Mohammad Hassan Sadeghi Ravesh ^{1 *} , Hassan Khosravi ²

1 - Associate Professor, Department of Environment, Tak.C., Islamic Azad University, Takestan, Iran. *(Corresponding Author)
2 - Professor, Department of Arid and Mountainous Regions Reclamation, Faculty of Natural Resources, University of Tehran, Tehran, Iran.

Received: 2024-01-14 Accepted : 2024-08-18 Published : 2025-03-21

Keywords: Alternative selection, Desertification, Fuzzy multi-criteria decision-making methods, Pairwise comparison, Triangular fuzzy number.,

Abstract :

Background and Objective: Desertification is a serious global environmental and economic-social threat, which, in addition to the extent of destruction, variety of effects and complexity of the process, also deals with qualitative and non-deterministic iindices and follows the behavior of fuzzy systems. It seems necessary to use fuzzy multi-criteria decision-making methods in evaluating the alternatives to deal with desertification in order to achieve the preferred and optimal alternatives. Therefore, this research was carried out with the aim of determining the priority of alternatives to deal with desertification using decision-making models in a fuzzy environment and on a case-by-case basis in the Yazd-Khizrabad plain during 2021-2022.

Material and Methodology: In order to achieve this goal, a fuzzy decision-making matrix was obtained from the fuzzy Delphi method and within the framework of the multi-criteria decision-making method. Then, using Expert Choice software and through the Electra model, the initial priority of the alternatives was obtained, and in order to estimate the final priority of the alternatives, the weighted linear combination method was used.

Findings: Based on the obtained results, from the point of view of Electra and Fuzzy VLC evaluation model, the strategy of preventing the inappropriate conversion and change of land use (18A) with a priority coefficient of 0.223 and adjusting the withdrawal from underground water resources (31A) with a priority coefficient of 0.213 were evaluated as the most effective alternatives in order to achieve the goal.

Discussion and Conclusion: Therefore, paying attention to the proposed strategies from a wide range of strategies can quickly improve this chaotic situation and establish a stable structure in the process of dealing with desertification. Finally, it is suggested that the plans to deal with desertification, according to the strategic document obtained in the study area, emphasize the obtained results in order to prevent the wastage of limited funds and increase the efficiency of control, restoration and reconstruction plans.

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