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Agricultural industry

Adaptive Irrigation Strategies Crucial for Balancing Water Use in Arid Western United States

Strategic Insights

— 1 min read

Researchers at Chapman University have conducted a study to explore the critical role of adaptive irrigation strategies in balancing water use, economic viability, and food security in the arid Western United States. The study found that water use efficiency (WUEc) is becoming increasingly complex to estimate due to climate change, and that crop-switching strategies can optimize land allocation among cereals in water-scarce environments.

Key Takeaways:

  • The study highlighted the importance of adaptive irrigation strategies in balancing water use, economic viability, and food security in the arid Western United States.
  • Water use efficiency (WUEc) is becoming increasingly complex to estimate due to climate change, making it challenging to regulate agricultural productivity and crop irrigation.
  • Crop-switching strategies can optimize land allocation among cereals in water-scarce environments, reducing water consumption by up to 13.7% and increasing farmers' profits by up to 44.8%.
  • Under the warmer SSP5-8.5 scenario, sustaining profit by up to 39% and calorie gains by up to 10.2% would require up to 9.5% more water.
  • The study concluded that crop-switching strategies can serve as a practical adaptation strategy to enhance agricultural sustainability in water-scarce environments.
  • Shahryar Fazli, a researcher from Chapman University, emphasized the need for region-specific approaches to ensure resilience to climate change.

Statistics:

  • Water consumption can be reduced by up to 13.7% through crop-switching strategies in the Imperial Valley and Lower Gila River regions.
  • Farmers' profits can increase by up to 44.8% through crop-switching strategies in the same regions.
  • Calorie production can increase by up to 2.7% through crop-switching strategies in the same regions.
  • Up to 9.5% more water may be required under the warmer SSP5-8.5 scenario to sustain profit and calorie gains.

Sources:

  • "Adaptive crop switching for irrigated agriculture in response to climate change in the Western U.S." (Journal: Agricultural Water Management, Volume 318, 2025, Article number: 109700)
  • Shahryar Fazli, Shahryar Fazli (Computational and Data Sciences Graduate Program, Schmid College of Science and Technology, Chapman University, Orange, CA 92866, United States)
  • Additional authors: Wenzhao Li, Surendra Maharjan, Rejoice Thomas, Aqil Tariq, Hesham El-Askary

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