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  • Presentation | H51M: From Data to Decisions: Water-Energy-Food-Environment (WEFE) Nexus Modeling Under Changing Climate II Poster
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  • H51M-0530: Harnessing the WEFE Nexus: Innovative Digital Solutions for South Asia’s Water Crisis
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  • Board 0530‚ Hall EFG (Poster Hall)
    NOLA CC
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Author(s):
Mohsin Hafeez, International Water Management Institute (First Author, Presenting Author)
Asif Naseer, International Water Management Institute
Mohammad Ali Tahir, International Water Management Institute
Iqra Akram, International Water Management Institute
Mohammad Jehanzaib Cheema, International Water Management Institute
Salman Siddiqui, International Water Management Institute
Steven Davies, International Food Policy Research Institute
Habibullah Bodla, International Water Management Institute
Mohammad Ashraf, International Water Management Institute
Bunyod Holmatov, International Water Management Institute
Matthew McCartney, International Water Management Institute (IWMI)


South Asia’s rivers face serious problems like water shortages, extreme weather, and damage to ecosystems. These challenges, made worse by poor coordination between sectors, put natural resources under pressure and threaten food security. There is an urgent need for sustainable, integrated water management. The Water-Energy-Food-Ecosystem (WEFE) Nexus framework looks at how these systems are connected and promotes resilience, efficiency, and sustainability by encouraging cooperation and reducing conflicts.


The Indus River Basin, home to the world’s largest irrigation system, needs smart, data-driven tools to manage water. The open-source Pywr model is a flexible tool that simulates complex water-sharing rules and helps balance the needs of farming, energy, and household water use. By using detailed infrastructure data, the Indus Pywr model supports planning that aligns with national goals and builds climate-resilient water management.


This study highlights three digital tools in Pakistan:




  • Water Productivity Atlas: Shows how efficiently water is used for farming across Punjab.




  • Water Bodies Inventory: A national database that helps guide water infrastructure decisions.




  • Hydro-Economic Model: Analyzes water use, crop choices, and economic impacts under changing climate conditions.




The study also offers guidelines for adopting and scaling the WEFE Nexus approach across South Asia, helping countries improve coordination and resilience.




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