Sustainable agriculture for water-stressed regions by air-water-energy management

A. Entezari, R.Z. Wang, S. Zhao, E. Mahdinia, J.Y. Wang, Y.D. Tu and D.F. Huang

Energy, 2019, vol. 181, issue C, 1121-1128

Abstract: For considerate use of limited freshwater resources in arid regions, it is very important to recycle the evapotranspiration water in greenhouse production for sustainable agriculture. In addition, in a typical greenhouse, ideal conditions for plants are set at low temperature, which is provided by evaporative cooling systems and ventilation, and this leads to more water waste. In this study, a water harvesting system was devised in the ventilation air path and our simulation for hot months showed that in a large-scale greenhouse, daily 9.5 tons of water is directed out of the greenhouse and 3.3 tons of them can be returned to the system by this device. A case study in a semi-arid area (Isfahan, Iran) showed that this system can provide 50% of water demand in summer. Such a system may provide feasible solutions for low growth yields in water-stressed regions and agriculture-dependent economies.

Keywords: Sustainable agriculture; Sustainable greenhouse; Air-water harvesting; Water management; Solar energy (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:181:y:2019:i:c:p:1121-1128

DOI: 10.1016/j.energy.2019.06.045

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