Performance Evaluation of Agricultural Surface Water Distribution Systems Based on Water-food-energy Nexus and Using AHP-Entropy-WASPAS Technique

Fatemeh Bayat (), Abbas Roozbahani () and Seied Mehdy Hashemy Shahdany ()
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Fatemeh Bayat: University of Tehran
Abbas Roozbahani: University of Tehran
Seied Mehdy Hashemy Shahdany: University of Tehran

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2022, vol. 36, issue 12, No 14, 4697-4720

Abstract: Abstract This study aimed to quantitatively evaluate the performance of practical alternatives in modernization projects of water distribution in irrigation networks based on the water-food-energy nexus using the AHP-Entropy-WASPAS technique. Three methods of improved manual operation, decentralized automatic operation, and centralized automatic operation were developed under normal and water shortage operation scenarios and modeling the current status of water distribution in the main canal of the Rudasht irrigation network as a case study. Water-based, energy-based and food-based indicators were used to develop the nexus evaluation framework. The results showed that the average values of the water-food-energy nexus index in the manual operation method were estimated at 0.49 and 0.16 under normal and water shortage operation scenarios, respectively. These average values were estimated at 0.53 and 0.17 under normal and water shortage operation scenarios, respectively, by improving the method to the improved manual operation method. The decentralized automatic operation method improved these average values to 0.82 and 0.39 under normal and water shortage operation scenarios. Finally, using the centralized automatic operation method, these average values were 0.94 and 0.35 under normal and water shortage operation scenarios. Since the downstream secondary off-takes of the irrigation network receive no water even by upgrading the surface water distribution system to the decentralized automatic operation method under the water shortage operation scenario, it can be said that the performance of the centralized automatic operation method is more efficient than the decentralized automatic operation method due to the fair and uniform distribution of water in both normal and water shortage scenarios.

Keywords: AHP-Entropy-WASPAS technique; Economic productivity; Modernization; Water-food-energy nexus; Agricultural water (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s11269-022-03273-3

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