2026-06-27http://hdl.handle.net/123456789/158985Report of a study conducted by IIMI for the Government of Sri Lanka and the ADBapplication/pdfOpen Accessriver basinsland usewater usewellsgroundwaterwater qualityirrigation watertank irrigationrehabilitationirrigation programsdevelopment projectswatershedswater resources developmentsimulation modelsrural developmentfarmers organizationsmappingparticipatory rural appraisalcost benefit analysisPre-project technical assistance study for proposed Area Development Project of North Central ProvinceReport