scholarly journals Multi-objective optimal model for sustainable management of groundwater resources in an arid and semiarid area using a coupled optimization-simulation modeling

2021 ◽  
Author(s):  
Mahmoud Mohammad Rezapour Tabari ◽  
Mehdi Eilbeigi ◽  
Manouchehr Chitsazan
Keyword(s):  
Simulation Modeling ◽  
Sustainable Management ◽  
Groundwater Resources ◽  
Optimal Model ◽  
Semiarid Area ◽  
Multi Objective ◽  
Optimization Simulation ◽  
Arid And Semiarid

scholarly journals Multi-Objective Optimal Model for Sustainable Management of Groundwater Resources in an Arid and Semi-arid Area Using a Coupled Optimization-Simulation Modeling

2021 ◽  
Author(s):  
mahmoud mohammad rezapour tabari ◽  
Mehdi Eilbeigi ◽  
Manouchehr chitsazan
Keyword(s):  
Simulation Modeling ◽  
Sustainable Management ◽  
Nitrate Concentration ◽  
Groundwater Resources ◽  
Multiple Criteria Decision Making ◽  
Temporal Distribution ◽  
Optimal Model ◽  
Aggregation Method ◽  
Nsga Ii ◽  
Optimization Simulation

Abstract Increased abstraction from the aquifer, in addition to the progressive drawdown of groundwater table can increase the concentration of pollutants. This research, optimal scenario for withdrawing water from wells is proposed for the aquifer sustainable development. The aquifer quantitative and qualitative simulation was carried out with the GMS model. The developed code in MATLAB2018b provides the link between the simulation and the NSGA-II optimization tools. Optimal scenario was chosen based on applying the Multiple-Criteria Decision Making (MCDM) and Berda Aggregation Method (BAM). The results show that reducing the current withdrawal rate to 51.55% can establish the quantitative and qualitative stability of the aquifer. The spatial and temporal distribution of nitrate concentration after applying the optimal discharge of wells shows that the nitrate concentration in central and eastern parts of the aquifer have greatly reduced. The developed structure can be used to improve the quantitative and qualitative status of any aquifer.

scholarly journals New Designing The Relationship Between The Water-Energy-Food Nexus With Environmental Objectives At The Basin Level For Sustainable Agricultural Management

2021 ◽  
Author(s):  
Abbas Mirzaei ◽  
Abbas Abdeshahi ◽  
Hassan Azarm ◽  
Somayeh Naghavi
Keyword(s):  
Sustainable Management ◽  
Agricultural Sector ◽  
Programming Model ◽  
Groundwater Resources ◽  
Gross Margin ◽  
Irrigation Network ◽  
Multi Objective ◽  
Multi Objective Programming ◽  
Environmental Objectives ◽  
Chemical Pesticides

Abstract Accomplishing the objectives of optimal and sustainable management in the agricultural sector is increasingly getting complicated, which includes increasing the sustainable productivity of water and energy resources, ensuring food security, decreasing contaminations from fertilizers and chemical pesticides, and environmental destruction. The present research deals with designing the relationships between the water-energy-food (WEF) nexus approach with economic and environmental objectives to accomplish the aforementioned objectives. Hence, a multi-objective programming model was developed to maximize the water-energy-food nexus index and farmers' gross margin, minimize the use of chemical fertilizers (nitrogen and phosphate), and minimize the use of chemical pesticides (herbicides) by considering the balancing constraint to groundwater resources. Afterward, the proposed multi-objective model was solved using the augmented ε-constraint method, and then the total of strong and efficient Pareto solutions was extracted. Then, the best solution was chosen using the TOPSIS method and assigning a weight of equal importance to the desired objectives. The irrigation network of Jiroft plain in Kerman province in Iran was chosen as the study area to implement such a system. The obtained results indicated that the optimal and sustainable management in the agriculture sector can be hopeful using the proposed approach in the current research. On the other hand, the results revealed that despite considering the economic objective in the proposed system, the farmers' profits can be significantly decreased. Thus, the realization of optimal and sustainable management in the agricultural sector is not possible without the implementation of policies for increasing the economic incentive of farmers.

scholarly journals Multi-Objective Optimal Model for Task Scheduling and Allocation in a Two Machines Robotic Cell Considering Breakdowns

2020 ◽  
Keyword(s):  
Optimal Allocation ◽  
Solution Procedure ◽  
Optimal Solutions ◽  
Operational Cost ◽  
Optimal Model ◽  
Robotic Cell ◽  
Swarm Optimization ◽  
Multi Objective ◽  
Processing Times ◽  
Two Machines

This paper aimed to demonstrate a metaheuristic as a solution procedure to schedule a two-machine, identical parts robotic cell under breakdown. The proposed previous model enabled one to determine optimal allocation of operations to the machines and corresponding processing times of each machine. For the proposed mathematical model to minimize cycle time and operational cost, multi-objective particle swarm optimization (MOPSO) algorithm was provided. Through some numerical examples, the optimal solutions were compared with the previous results. MOPSO algorithm could find the solutions for problems embeds up to 50 operations in a rationale time.

scholarly journals Proposing the Optimum Withdrawing Scenarios to Provide the Western Coastal Area of Port Said, Egypt, with Sufficient Groundwater with Less Salinity

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3359
Author(s):  
Mohamed Abdelfattah ◽  
Heba Abdel-Aziz Abu-Bakr ◽  
Ahmed Gaber ◽  
Mohamed H. Geriesh ◽  
Ashraf Y. Elnaggar ◽  
...  
Keyword(s):  
Seawater Intrusion ◽  
Coastal Aquifer ◽  
Sustainable Management ◽  
Groundwater Resources ◽  
Field Investigation ◽  
Visual Modflow ◽  
Groundwater Abstraction ◽  
Human Needs ◽  
Western Area ◽  
Port Said

Recently, groundwater resources in Egypt have become one of the important sources to meet human needs and activities, especially in coastal areas such as the western area of Port Said, where seawater desalination cannot be used due to the problem of oil spill and the reliance upon groundwater resources. Thus, the purpose of the study is the sustainable management of the groundwater resources in the coastal aquifer entailing groundwater abstraction. In this regard, the Visual MODFLOW and SEAWAT codes were used to simulate groundwater flow and seawater intrusion in the study area for 50 years (from 2018 to 2068) to predict the drawdown, as well as the salinity distribution due to the pumping of the wells on the groundwater coastal aquifer based on field investigation data and numerical modelling. Different well scenarios were used, such as the change in well abstraction rate, the different numbers of abstraction wells, the spacing between the abstraction wells and the change in screen depth in abstraction. The recommended scenarios were selected after comparing the predicted drawdown and salinity results for each scenario to minimize the seawater intrusion and preserve these resources from degradation.

Sustainable management of groundwater resources

2008 ◽  
pp. 473-480 ◽  
Author(s):  
J. Guttman ◽  
E. Salameh ◽  
E. Rosenthal ◽  
AR. Tamimi ◽  
A. Flexer
Keyword(s):  
Sustainable Management ◽  
Groundwater Resources

scholarly journals The role of unsaturated zone in estimating groundwater recharge in arid and semiarid areas as depicted by geochemical tracers

2019 ◽  
Vol 98 ◽  
pp. 12007
Author(s):  
Tianming Huang ◽  
Baoqiang Ma ◽  
Yin Long ◽  
Zhonghe Pang
Keyword(s):  
Groundwater Recharge ◽  
Unsaturated Zone ◽  
Surface Boundary ◽  
Recharge Rate ◽  
Semiarid Area ◽  
Near Surface ◽  
Geochemical Tracers ◽  
Semiarid Areas ◽  
Arid And Semiarid Areas ◽  
Arid And Semiarid

In arid and semiarid area, the recharge rate is relatively limited and the unsaturated zone (UZ) is commonly thick. The moisture in the UZ may represent the water infiltrating from precipitation during the past decades to thousands of years. Therefore, the multiple geochemical tracers in soil moisture, including Cl (chloride mass balance), 3H (tritium peak displacement), NO3, 2H, 18O, can be used to estimate diffuse recharge rate and related recharge characteristics. Based on 45 UZ profiles with maximum depth of 62 m in the Ordos Basin in NW China, a typical arid and semiarid area, we has used multiple geochemical tracers to study the following recharge informations: (1) reconstruction of groundwater recharge history, (2) determination of groundwater recharge mechanism, and (3) assessment of impact of vegetation changes on groundwater recharge. The results show that the soil texture (epically the shallow soil), vegetation and precipitation mainly control the recharge rate. This study also found that shallow groundwater in arid and semiarid areas is often not in equilibrium with near-surface boundary conditions. To estimate present recharge information, the UZ must be considered. The whole recharge process from precipitation to groundwater cannot be well understood unless the UZ have been included in arid and semiarid areas.

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