Coastal spatial planning_ ecosystems management and disasters risk

Document Sample
Coastal spatial planning_ ecosystems management and disasters risk Powered By Docstoc
					                                  Coastal spatial planning, ecosystems
                               management and disasters risk reduction
                                              Experiences from Western Africa

World Conservation Congress, Jeju, 7ty of September 2012 – Workshop #791 “Reducing Environmental Risks – Naturally!”
Towards a regional understanding
of the coastal risks in West Africa
        • UEMOA 2007 : regional program to fight
          coastal erosion
        • IUCN committed to produce a diagnostic,
          a map of the coastline and a regional coastal
          zone management scheme
        • Collaboration with EOS.D2C, EAM.GEOME,
          and more than 130 national experts:
                   – Prospective studies on demography,
                     economy and climate
                   – Regional diagnostic, maps, regional and
                     detailed management scheme
                   – 11 national diagnostics
                   – 15 case studies
          Origins of the risks

• Fast demographic growth and concentration
  in the coastal areas
• Human installations in exposed areas
• Fragile coasts
• Perturbations of the hydro-sedimentary
  dynamics (dams, infrastructures, modifying estuaries,
   coastal protection, etc.)
• Extraction of coastal sediments
• Destruction of coastal green infrastructures
  and ecosystems services
• Sea level rise and meteorological events
Results and perspectives

     • A regional diagnostic
     • 10.000 km of coasts mapped
       (dynamics, stakes and management scheme)
     • A management scheme with detailed
       recommendations for 179 sectors
     • Next steps:
        – A GIS and a long term regional monitoring
          system of coastal risks for West Africa
        – Strengthening governance and actors’ capacities
        – Link strongly coastal spatial planning and
          disaster risks reduction
        – Integrating ecosystem management, restoration
          and conservation
     Coastal ecosystems, land use planning
          and disasters risk reduction

• Three case studies:
   – Nouakchott, Mauritania:
     Importance of preserving sand ridges
     to prevent the flooding of the capital

   – Banjul, The Gambia:
     Conserving mangroves to reduce the
     impacts on infrastructures

   – Abidjan, Ivory Coast:
     The coastal wetlands and lagoons for
     adaptation to sea level rise and
     water supply
        Nouakchott, a capital
        under the sea level
• Preserve the coastal sand
  ridge to prevent floodings
 Banjul, the mangrove to slow down
 the effects of coastal erosion

• The mangroves capture the sediments
  contributing to stabilize the coast
Abidjan, wetlands reducing the impacts
of coastal erosion and supply water

• The coastal lagoons provide water to Abidjan
  and reduce coastal erosion, migrating
  backwards where the lido has not been
  heavily artificialized
          Next steps concerning PACO
           and GMPP / Global Coasts

• Do the same job in Central Africa (CEMAC ?)
• Develop a flagship product for the Global coast
  program: Coastal Spatial Planning
• Collaborate to similar approaches in other regions
  (Asia, ESARO) and methodologies (R2R, etc.)
• In collaboration with CEM and DRR program in HQ
   Lessons learnt and recommendations

• Territorial prospective is a necessary approach
• Why insisting on DRR approaches ?
   – Maximum political audience
   – Multidisciplinary and prospective, technically exigent
   – access to new funding mechanisms
     (adaptation funds, WB GFDRR, etc.)
   – A strong justification for coastal & marine PAs and ecosystem based
• Need further integration with ecosystem management, restoration
  and conservation
• IUCN has a DRR network already : CEM, EOS.D2C, EAM-GEOME
• Need for a proactive Specialized Thematic Group in CEM on DRR
  with key areas - including coastal, proposing a set of diverse expertise
  easy to mobilize, flagship approaches and capitalization products

Shared By: