EXAMINING PAYMENTS/REWARDS FOR ENVIRONMENTAL SERVICES : EXPERIENCES FROM PRO-POOR REWARDS FOR ENVIRONMENTAL SERVICES IN AFRICA ( PRESA ) Sara Namirembe With Meine van Noordwijk Delia Catacutan Leimona Beria
RES schemes based on scientifically sound assessment of relationships of land use changes and ES provision.
Impacts of land use change - Kapingazi The impact of land use change on water yield is generally low. Scenario Water yield (mm) Surface runoff % Base flow % Base case 846 86 14 Convert tea farms to annual crops 936 84 16 Convert coffee farms to annual crops 864 88 12 Double built up areas 860 86 14
Effectiveness of landuse practices on hydrology Quantity: Soil and water conservation practices have little effect on water yield Quality: Significant effect on sediment yield Sasumua Landuse practices Sediment yield reduction (%) Reduction in surface runoff (%) Increase in base flow (%) Contour farming with trees 49 16 8 Grass filter strips 38 - - Grass waterway 41 - - Terraces 85 22 10
Initial interest Effective increase in ES Signed contract External investors and regulators: learning curve Learning curve for local stakeholders (actors) of land use change Smooth implemen- tation? Efficient + Fair reward systems require a two-way learning curve Negotiations