Page 139

Proceedings of International Conference on Climate Change, Biodiversity and Ecosystem Services for the Sustainable Development Goals : Policy and Practice 27-29 June 2016 at the Sirindhorn International Environmental Park, Cha-am, Phetchaburi, Thailand

Thailand with boundary of water sheds Fig.1  Location  of  the  study  area. A.  Assessing  land  use  change  Land  use  change  was  analysed  for  four time  periods  (1989,  2000,  2007  and  2013).  Year  2000  represents  the  immediate  past  before  the  major  agricultural  policy  implemented  to  promote  rubber  plantation  in  the  country.  The  year  1989  was  chosen  to  examine  what  was  the  land  use  type  as  it  was  the  year  when  logging  ban  was  implemented  and  2013  to  represent  the  current  situation.  Land  use  map  1989  was  interpreted  from  Landsat-5  Thematic  Mapper  (TM)  satellite  data  for  Path  129/Row  48  and  49  acquired  on  25  March  1989  from  the  United  States  Geological  Survey  website  (http://earthexplorer. usgs.gov/)  by  visual  interpretation  technique  in  ARCGIS  10.2  software  (ESRI,  2013).  Land  use  maps  for  the  year  2000,  2007,  and  2013  were  obtained  from  the  Land  Development  Department  of  Thailand  in  digital  format.  The  land  use  classes  were  regrouped  for  all  the  years  into  eleven  major  land  use  classes.  Land  use  change  was  analysed  in  ARCGIS  by  creating  land  use  change  matrix.  B.  Assessing  ecosystem  services  The  Integrated  Valuation  of  Ecosystem  Services  and  Tradeoffs  (InVEST  3.0.1)  tool  was  used  to  map  and  quantify  a  set  of  ecosystem  services  in  this  study.  InVEST,  a  geospatial  modeling  framework  tool,  which  quantifies  and  maps  a  range  of  ecosystem  services  and  evaluates  the  impact  of  land  use  change  on  ecosystem  services  13,  15,  is  widely  used  for  assessing  ecosystem  services  16.  In  this  study,  we  analysed  four  selected  ecosystem  services,  1)  water  yield,  2)  sediment  retention,  3)  carbon  storage,  and  4)  habitat  quality,  representing  supporting  (sediment  retention,  habitat  quality  as  a  proxy  of  biodiversity),  regulating  (carbon  sequestration),  and  provisioning  (water  yield)  services.  1) Water  yield  Water  yield  is  defined  as  the  amount  of water  runoff  from  the  landscape  17.  The  water  yield  model,  which  runs  on  a  gridded  map,  requires  specific  data  input  in  the  form  of  raster  maps  to  estimate  the  quantity  of  water  Proceedings  of  the  International  Conference  on  Climate  Change,  Biodiversity  and  Ecosystem  Services  for  the 137 Sustainable  Development  Goals  (SDGs):  Policy  and  Practice  27-29  June  2016,  Cha-am,  Phetchaburi,  Thailand


Proceedings of International Conference on Climate Change, Biodiversity and Ecosystem Services for the Sustainable Development Goals : Policy and Practice 27-29 June 2016 at the Sirindhorn International Environmental Park, Cha-am, Phetchaburi, Thailand
To see the actual publication please follow the link above