Linking ecohydraulic simulation and optimization system for mitigating economic and environmental losses of reservoirs

Sedighkia, Mahdi, Datta, Bithin, and Fathi, Zeynab (2022) Linking ecohydraulic simulation and optimization system for mitigating economic and environmental losses of reservoirs. Aqua: water infrastructure, ecosystems and society, 71 (2). pp. 229-247.

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Balancing the benefits and environmental degradations of the reservoirs is a challenging issue in the reservoir management. The present study proposes and evaluates an integrated framework to optimize reservoir operation in which hydropower loss and economic loss of irrigation supply are minimized while ecological degradations at downstream river are alleviated. The ecohydraulic simulation was utilized in the structure of the reservoir operation optimization. Reservoir operation losses and environmental degradations were minimized in three hydrological conditions including dry years, normal years and wet years. Moreover, the cropping pattern optimization was applied to mitigate the economic loss of irrigation supply as the main responsibility of the reservoir in the study area. Particle swarm optimization was applied in the reservoir operation optimization. Based on the results in the case study, reliability indices of hydropower production and farmers’ revenue are 15–25 and 30–60%, respectively. Moreover, the physical habitat loss is considerably reduced in all hydrologic conditions by proposing optimal environmental flow. The proposed method is able to provide a fair balance between downstream environmental degradations and economic benefits of the reservoir including farmers’ revenue and hydropower production. Low computational complexities are the most important strength point for the developed model.

Item ID: 72137
Item Type: Article (Research - C1)
ISSN: 2709-8028
Keywords: cropping pattern, ecohydraulic simulation, hydropower, particle swarm optimization, reservoir operation
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Copyright Information: © 2022 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (
Date Deposited: 09 Feb 2022 09:06
FoR Codes: 40 ENGINEERING > 4005 Civil engineering > 400513 Water resources engineering @ 100%
SEO Codes: 18 ENVIRONMENTAL MANAGEMENT > 1803 Fresh, ground and surface water systems and management > 180399 Fresh, ground and surface water systems and management not elsewhere classified @ 100%
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