Page 258

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

3.  Formulation  of  guidelines  for  sustainable  integrated  watershed  management  with  people  participation II.  STUDY  AREA The  study  area  is  located  in  Cha-am  District,  Phetchaburi  Province  covering  the  study  sites  of  2  watershed  areas:  Bangtranoi  and  Huaisai  with  an  area  64.1  and  19.51  sq.  km.  respectively,  in  which  the  Sirindhorn  International  Environmental  Park  (SIEP)  and  its  vicinity  area  are  included  (Fig.1). III. MATERIALS  AND  METHODS 3.1  Land  use  change  analysis To  work  out  the  land  use  change  of  the study  watershed  (BTN  and  HS  watershed),  Sample point WS Boundary land  use  classification  mapping  for  the  periods  from  2009  to  2015  by  the  Land  Development  Department  (LDD,  2015)  was  used.  The  classified  images  were  converted  to  ArcGIS  files  format  for  investigating  the  change  of  land  use  detection  and  calculated  land  use  change  areas  from  2009  to  2015  using  the  raster  calculation  technique  in  the  spatial  analyst  module.  In  addition,  a  field  survey  was  used. 3.2  Soil  resource  analysis Totally  10  disturbed  and  undisturbed  soil  samples  were  collected  based  on  land  use  types  and  soil  series  (Fig.2).  Soil  texture,  bulk  density  and  chemical  properties  (soil  fertility)  was  analyzed  in  a  laboratory,  whereas,  infiltration  rate  data  was  collected  during  the  field  survey.  Furthermore,  on-site  soil  erosion  was  calculated  using  USLE  equation  and  GIS  technique. Bangtranoi WS Huaisai WS Fig.2  Soil  sampling  location Key:  Slope  complex  (Sc),  Nhong  Kae  (Nk),  Hup  Ka  Pong  (Hg),  Chonburi  (Cb),  Samutprakarn  (Sm), Watana  (Wa) 3.3  Forest  resource  survey Forest  inventory  techniques  were  used  to  measure  forest  resource  involving  235  temporary  field  sampling  plots.  The  plots  are  circular;  a  17.85,  12.62  and  5.64  meter  radius  were  used  to  measure  forest  types,  stand  density  (trees,  saplings,  seedlings,  and  bamboos), stand  volume,  and  biodiversity.  15  permanent  plots  (20  x  40  m2)  were  used  to  study  canopy  crown  cover,  plant  profile,  and  ecological  features (Table  1)  and  comparison  with  the  study  by  Faculty  of  Forestry,  Kasetsart  University  (2008). 256 Proceedings  of  the  International  Conference  on  Climate  Change,  Biodiversity  and  Ecosystem  Services  for  the 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