1409-3871 1409-3871 S1409-38712020000100079 10.15517/lank.v20i1.41434 Sri Lanka Sri Lanka 00 04 2020 00 04 2020 20 1 79 90

2011 38 1821-33 2020 2016 14 355-70 Department of Agriculture. 1997 Department of Meteorology 2020 2013 Okinawa, Japan 103-8 2012 200-4 2008 18 1 1 1-28 2012 141-68 2007 93 11 11 1567-72 1981 Volume II 4-387 2017 17 3 3 417-31 2016 42 42 33-40 2006 2017 67-85 2017 3 2 2 1-21 2016 2 16134 1987 42 4 4 937-43 2006 44-9 2009 40 7 7 486-94 2014 202 392-400 Ministry of Environment (MOE) 2010 1-90 Ministry of Environment (MOE) 2012 2000 403 853-858. 2006 21 64-65. 64-65. 2017 17 1 1 17-47 2009 104 543-556 543-556 2008 33 27-35 UNESCO 2010 2013 44 6 6 461-7 2011 14 702-8 2008 2015 10 2013 171 3 3 453-81