Weerawardena, N.D.R.Malcom, D.C.Longman, K.A.2014-12-162014-12-161998The Sri Lanka Forester, 23(1-2):p.51-63https://dl.nsf.gov.lk/handle/1/16493ForestryUnderplantingPinesSoil fertilityEcologyForest managementConversion of pine plantations by underplanting in Sri Lanka - possibilities and constraints