Vol. 10 No. 4 (2021)
Full Research Articles

Sustainable water resources management under population growth and agricultural development in the Kheirabad river basin, Iran

Ghasem Layani
Shiraz University
Mohammad Bakhshoodeh
College of Agriculture, Shiraz University
Mansour Zibaei
College of Agriculture, Shiraz University
Davide Viaggi
Department of Agricultural and Food Sciences, University of Bologna
Published March 31, 2022
Keywords
  • Sustainability Index,
  • water system,
  • system dynamics,
  • agriculture,
  • food security,
  • Kheirabad River Basin
  • ...More
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How to Cite
Layani, G., Bakhshoodeh, M., Zibaei, M., & Viaggi, D. (2022). Sustainable water resources management under population growth and agricultural development in the Kheirabad river basin, Iran. Bio-Based and Applied Economics, 10(4), 305-323. https://doi.org/10.36253/bae-10465

Abstract

In this study, an integrated system dynamics model was developed for scenario analysis in sub-sectors of the Kheirabad River Basin in southwestern Iran where managing water resources is seriously challenging due to population growth and periodic drought. Afterward, the variability of water demand and supply under baseline scenario and different water demand management policies, including water conservation and water pricing, was evaluated. Findings illustrated that with increasing population and cropland area if no further demand management policies were implemented, the total water demand and withdrawal of water resources increase by more than 0.75% annually. The annual surface water availability during 2018-2030 is expected to decrease by around -1.23%. Under these circumstances, the sustainability index of the water resources system is equal to 0.703, indicating that the water system would not be able to meet the total water demand in the near future. However, the water resource sustainability index increases significantly by improving irrigation efficiency and changing crop patterns at the basin. Also, the reduction in per capita water demand and domestic water pricing under the competition structure would help to improve the sustainability index to 0.963 and 0.749, respectively.

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