Karunarathna, H. H. A.; Bandaranayeka, G.M.
(Nāgānanda International Journal of Humanities & Social Sciences,Vol: II , No. 1, 2021, pp. 30-42 © NIIBS Publications. All Right Reserved http://www.niibs.lk, 2021)
Long extending canals, distributing water for vast areas are one of the ancient
irrigation structures of Sri Lanka. Normally, in terms of functionality, these
canals are of four types. One; supply of water for paddy ...