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Urban and peri urban water management nexus to a dying river_Prof MS Khan-Bangladesh
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Urban and peri urban water management nexus to a dying river_Prof MS Khan-Bangladesh

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Urban and Peri-Urban Water Management Nexus to a Dying River by Prof MS Khan, BUET, Bangladesh, presented at IDRC, New Delhi

Urban and Peri-Urban Water Management Nexus to a Dying River by Prof MS Khan, BUET, Bangladesh, presented at IDRC, New Delhi

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  • 1. Urban and Peri-Urban Water Management Nexus to a Dying River M. Shah Alam Khan Professor Institute of Water and Flood Management, Bangladesh University of Engineering and Technology IDRC Seminar, New Delhi January 11, 2012
  • 2. Presentation Outline• Khulna: general description• Urban/Peri-urban vulnerabilities• Mayur river: urban and peri-urban links• Mayur river: issues and challenges• Actions/Adaptations
  • 3. Khulna CityThird largest metropolitan city- Population 1.7 million (3.8% growth)- Area 46 sq. km- Groundwater based water supply (56 production wells, 12,000 hand tubewells)Water institutions:- Khulna WASA, KCC, KDA, Union- level community organizations- Strong NGO, civil society mobilization around water (Coastal Water Convention 2011)- Mayor popular across party lines
  • 4. River SystemRupsha-Bhairab(Ganges tidal plain) Urbanized area Mayur riverMayur river Rupsha river(flow controlled by gates) Regulator
  • 5. Urban/Peri-Urban Vulnerabilities• Water scarcity for drinking, sanitation and agricultural use• Wastewater discharge, solid waste disposal, rainfall flooding and water logging• Climate change induced sea level rise and salinity intrusion• Salinity, iron and arsenic in groundwater• Absence of community participation in gate operation and management• Absence of community participation and institutional arrangement for water management• Conflict between upstream and downstream (Mayur river) water users (culture fisheries)• Conflict between urban and peri-urban water users
  • 6. VulnerabilitiesUrbanization stress on peri-urbancommunities- Land conversion and depleting waterbodies- Wastewater and solid waste disposal (18 drains from the city into the Mayur river)Adverse impacts on ecosystem and livelihoodsDisplacement of the poor
  • 7. VulnerabilitiesProjected climate change impacts(one of the most vulnerable cities)- More frequent extreme events: Cyclone, storm surge, rainfall- Sea level rise resulting in salinity intrusion, drainage congestion and storm surge/tidal floodingAdverse impacts on vulnerable communities ‘Climate migrant’ influx
  • 8. Mayur RiverUrban/Peri-urban Links• Stormwater and wastewater drainage• Solid waste disposal• Water supply• Ecosystem and livelihood
  • 9. Mayur RiverIssues and Challenges• Natural (tidal) flow of the river is obstructed (by gates)• The river has lost its conveyance capacity due to solid waste accumulation• Water is unsuitable for aquatic life (DO: 0.3 - 1.4 mg/L; pH: 6.32 - 6.85)• Conflict between KCC, KDA and KWASA regarding ownership of the problem• Absence of strong advocacy for the peri-urban communities
  • 10. Blame it ALL on Climate Change!• Khulna has been the focus of CC studies and 160 capacity building programs 140 No. of Rainy Days 120• These programs have generated a lot of 100 awareness among the vulnerable 80 60 communities 40 20• Local people believe almost all the problems 0 (including WL rise and increasing salinity) 1940 1950 1960 1970 Year 1980 1990 2000 2010 are caused by CC impact• Need to isolate CC impact and other causes
  • 11. Action/Adaptation/Advocacy• Water supply, sewage treatment and solid waste management programs for the city (Water importation from peri-urban areas/distant rivers)• Restoration of the Mayur river – ‘Linear Park’• Community based solid waste management and biological treatment• Drainage improvement• Wastewater irrigation• ‘Save the Mayur’ campaign
  • 12. AcknowledgementInternational Development Research CenterSouth Asia Consortium for InterdisciplinaryWater Resources Studies
  • 13. Thanks for listening

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