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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

(e.g.,  the  role  of  environmental  education  in  primary  and  secondary  school,  as  example). Taking  the  above  principles  into  account,  the  BAU  and  an  Environmental  Policy  scenario  were  developed  to  demonstrate  the  utility  of  the  WEAP  model  as  a  tool  for  integrated  water  resources  management,  and  are  summarized  in  Fig.5. Illustrative Water Management Policy Scenario Regional Environmental Conservation 1. Double the instream flow requirement below the Petchaburi River to maintain higher flows down river. 2. Do not allow Khangkachan Reservoir to fall below a minimum height. 3. Ensure groundwater levels do not fall below minimum threshold to reduce salinity threat. BAU Scenario – Assumptions 1. Without Climate Change: Historical climate repeats BAU Scenario - Assumptions 1. With Future Climate Change (RCP4.5 and RCP8.5). 2. Regional population and tourism grows by UN estimate, with a growth rate of less than 1%. 3. Minimum flow requirements below the Petraburi Dam Diversion have highest priority. 4. Irrigated agriculture and municipal water supplies to Eastern region have equal priority, but secondary to Petchaburi river. 5. Irrigation preference is first from Petchaburi canal, then groundwater, and finally local sources. 6. Hydropower is a secondary benefit (serves agriculture and flood protection). 7. Irrigators closer to the canal source possess a "Positional Advantage" to the canal water 8. A minimum canal flow of 1.5 cms to the Southern Region must be met. Fig.5  Baseline  assumptions  and  two  select,  future  water  management  policy  scenarios The  BAU  scenario  assumes  current  water  use  and  supply  sources  continue  along  the  same  trajectory  that  includes  regional  population  growth  and  tourism  visit  estimates,  while  the  land  in  agriculture  and  the  current  infrastructure  and  their  operations  remain  the  same. Water  use  per-capita  also  remains  constant  throughout  the  future  period,  which  have  considered  to  be  2020  through  2040  for  this  analysis.  The  policy  scenario  that  we  have  developed  for  this  report  focuses  on  environmental  enhancement  of  the  Phetchaburi  river  system.  Ideally,  policy  scenarios  would  be  developed  within  a  participatory  environment  that would  gather  input  from  stakeholders  in  an  iterative  fashion.  Unfortunately,  this  brief  project  did  not  have  the  benefit  of  such  direct  input.  The  Environmental  scenario  that  was  developed,  looks  to  enhance  the  environmental  flows  of  the  Phetchaburi  river,  recognizing  that more  than  60%  of  the  flow  at  the  Phetchaburi dam  is  annually  diverted  primarily  to  serve  irrigated  agricultural  interests. 246 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
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