Table 6

Applications of Value Transfer Function in Three Nature-Based-Solution Pilots

ProjectEssen’s Transition (from Gray to Green)Coastal Mangrove Restoration (Bangladesh)Conserving Biodiversity (Nile Basin Transboundary Wetlands)
TypeUrbanMangrove restorationWetland conservation
DescriptionFormer site of Krupp cast-steel factory; transformed into a 230 ha green beltEstablished 9,650 ha of mangrove plantationTo strengthen technical and institutional capabilities to sustainably manage the region to limit drought and flooding
ContinentEuropeAsiaAfrica
Risk being addressedFloodingFlooding, coastal defenseFlooding, droughts
Area (ha)2309,650320
Population density2,7151,1801,280 (across Nile basin)
GDP per capita50,0702,6881,100 (avg. Nile basin countries)
Type of nature-based solutionParkMangroveWetland
Co-benefits providedRecreation, species habitat, air quality, climate regulation, carbon sequestration, flood risk, aesthetic appreciationRecreation, habitat for species, climate regulation, flood riskRecreation, habitat for species, air quality, climate regulation, flood risk
Previous land useUrbanRestorationConservation
Annal value per hectare533,870160,76496,244
Annual total value122.7 million1,512 million30.8 million
  • Note: The GDP and values are in 2022 US$. The contingent valuation method is set at 0.2 to reflect the sample average.