A proposed multi-objective model with a water-energy-food nexus approach to improve water and energy efficiency

Articles in Press

Document Type : Research Paper

Authors

1 PHD of Agricultural Economics, University of Sistan and Baluchistan

2 Assistant Professor of Agricultural Economics، Faculty of Management and Economics, University of Sistan and Baluchistan, Zahedan, Iran

3 Assistant professor, University of sistan and baluchestan, sistan and baluchestan, Iran.

4 Associate professor of agricultural economics- Agriculture Sciences and Natural Resources University of Khuzestan

10.22034/iaes.2023.1990874.1982

Abstract

Due to the drought conditions and due to population growth and increased demand for food, today more than ever there is a need to improve water and energy efficiency. In recent years, water-scarce regions (WSRs) have faced many challenges in order to achieve sustainable economic development. Sustainable economic development in the agricultural sector of WSRs is possible by paying attention to the water-energy-food nexus (WEFN) concept. WEFN determined using consumption, physical productivity, and economic productivity criteria of water and energy resources. The present research was conducted in the study area of Sistan Plain for the crop year 2017-2018. Considering that no study has been conducted in this basin in the field of water and energy efficiency using the correlation approach. Therefore, the current research has determined the amount of economic and physical productivity (water and energy consumption) in this basin using a multi-objective planning model. Coding and solving the model has been done using GAMS software. According to the results of the implementation of the water-energy-food correlation model, it has led to an improvement in the efficiency of irrigation water consumption in the study area by 11.37%. According to the results of the model of economic productivity for energy consumption of inputs, strategic products to provide food security and CO2 greenhouse gas emission, respectively (14.3, 14. 1 and 16.02) percent were obtained. Also, the results of the proposed model showed that the physical productivity of water consumption in Sistan Plain has increased from 188899.5 kg/m3 to 211487.5 kg/m3. Therefore, the implementation of the WEFN correlation approach in the study area has led to the improvement of the economic and physical efficiency of water and energy consumption.

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Main Subjects

Agricultural Economics

Articles in Press, Accepted Manuscript
Available Online from 23 January 2024

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