SWAT modeling results identified priority locations for catchment management.

  • Total cost of the full implementation scenario was 111 million USD (about 12 billion rupees). The full implementation scenario assumes all land management activities are done everywhere they are possible.
  • HRUs 1177 and 1145 had the highest average annual change in sediment yield.
  • SALT was the recommended activity for all top-ranked watersheds with the highest potential change in sediment yield from full implementation.
  • Roughly half of the full implementation budget, or $53M USD, would be spent on SALT before reforestation or conservation agriculture (on lower sloping areas) become the more cost-effective alternative.
  • Most areas with highest modeled reduction in sediment load are outside of the area of immediate impact of the Kaligandaki facility.
Priority areas for non-structural (land management) interventions