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Our messages on How to unlock the Potential of polders to increase food production

Our messages on How to unlock the Potential of polders to increase food production. River. 5 research projects - expected outcomes. Use of suitability domain maps as a decision support tools Develop, evaluate, and adapt new and improved cropping and aquaculture systems

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Our messages on How to unlock the Potential of polders to increase food production

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  1. Our messages on How to unlock the Potential of polders to increase food production

  2. River 5 research projects - expected outcomes Use of suitability domain maps as a decision support tools Develop, evaluate, and adapt new and improved cropping and aquaculture systems Better polder governance through reduced conflict between fishermen and farmers Understanding of the key external drivers of change in water resources Establish a policy framework for scaling up/out of technologies to enable changes in HH of Ganges coastal zone (team effort) Inlet to sluice gate Polder 31 Sluice gate on river side Sluice gate inside the polder Polder 30

  3. 2/12 Study sites for improved technologies Polder 3 Rice/Aquaculture & Shrimp/Shrimp Polder 30 Intensification from one to two crops Polder 43/2f Intensification from one/two to three crops

  4. Aus (100-105 d) T. Aman (130-140 d) Rabi (130-140 d) 1 Dec Low salinity areas: Aus-Aman-Rabi Cropping System 30 June 15 Nov 05Apr 10 July 10 Apr

  5. Aman (140 d) Rabi (120-140 d) Dec/Jan Moderate salinity areas: Aman-Rabi Cropping System 15 Nov 30 Apr 15 July Terminal Drainage

  6. High salinity areas: Improved aquaculture-rice Wet season Dry season Gher preparation Bagda Rice+Fish Seedling Drain out saline water, expose gher soil to rainfall to leach down soil salinity Poorly-drained gher in polder 3 Well-drained gher

  7. MESSAGE 1Water resources in the coastal zone have largely been mis-conceived and under-utilized CPWF research shows that in the dry season: • fresh water could be brought into the polders from locations where the water is still fresh. • Fresh water could be storied in the internal canal networks for irrigation

  8. ……….Also: • Brackish water should be considered as a resource that can be effectively managed rather than a constraint to production • Large tidal fluctuations in the rivers of the coastal zone offer huge potential for low cost water management in the form of- • Gravity drainage throughout the aman (kharif 2) season • Gravity irrigation during the kharif 1 season or aus rice establishment

  9. MESSAGE 2:Tremendous potential exists through the adoption of newly available crop and aquaculture technologies using available water resources

  10. MESSAGE 3Fundamental changes in thinking about the roles of the polders, and proper investment in infrastructure to unlock the potential of the available water resources.

  11. MESSAGE 3Fundamental changes in thinking about the roles of the polders, and proper investment in infrastructure to unlock the potential of the available water resources. • Integrate existing rural infrastructure into polder water management plans. • Create mini-watersheds each with its own hydrology • Base these on common interests of the land and water users and their ability to implement new practices

  12. MESSAGE 4: There is a need for major changes in policies and the institutional set up to govern and manage water at different scales within the polders.

  13. MESSAGE 5Maintain the water management infrastructure

  14. 1 Misconceived and under-utilized 2 Tremendous potential 3 Fundamental changes in thinking 4 Major changes in policies and the institutional set up 5 Maintenance of the water management infrastructure 6 Access to new models and tools

  15. THANK YOU FROM THE TEAM

  16. MESSAGE 6:Enable access to new models and tools through sustainable data sharing mechanisms • Effective and sustainable data-sharing mechanisms in place • these models and databases must have the ability to integrate both socioeconomic and biophysical data and be accessible to multidisciplinary, multi-institutional datasets • SDI

  17. ONLY THEN CAN The principles of integrated water resources management across different scales (or levels) within each polder help to unlock the potential of polders to increase the resilience of the agricultural and aquatic systems. So what does this mean........

  18. MESSAGE 4: There is a need for major changes in policies and the institutional set up to govern and manage water at different scales within the polders. • Legislation is important to enable local government representatives and institutions to be formally involved in community water governance and management.

  19. THE TECHNOLOGIES ARE AVAILABLE:Improved species / varietiesCropping system intensification and diversificationHOWEVER THERE NEEDS TO BE A PARALLEL PROCESS Change of thinking about the ROLE of poldersChange in the POLICIES that guide institutional structures that manage and govern the polders WE KNOW THAT:

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