3. main stream streamflow, sediment, chemicals,microbes Topographic divide Rain Watershed Structure Evapotranspiration WS Leakage WS Resources Products

4. Rainfall = P Inflow = I Evapotranspiration = E Storage = S Groundwater Outflow = O g Streamflow = R Soil and Water Assessment Tool : SWAT

5. streamflow forest shifting cultivation village fruit trees paddy Influence of land use to flow quantity and timing, water quality measuring point

6. Soil Detachment Small particle Small particle blocking to soil pore Soil pore Detachment Transportation Scouring Deposition

7. SWAT is the acronym for Soil and Water Assessment Tool, a river basin, or watershed, scale model developed by Dr. Jeff Arnold for the USDA Agricultural Research Service (ARS). SWAT was developed to predict the impact of land management practices on water, sediment and agricultural chemical yields in large complex watersheds with varying soils, land use and management conditions over long periods of time.

8. The Soil and Water Assessment Tool (SWAT) model is a continuation of nearly 30 years of modeling efforts conducted by the USDA Agricultural Research Service (ARS). SWAT has gained international acceptance as a robust interdisciplinary watershed modeling tool as evidenced by international SWAT conferences

9. PART 1. Overview of SWAT 1.1 Overview of Soil and Water Assessment Tool (SWAT) Model 1.2 The Soil and Water Assessment Tool: Historical Development, Applications, and Future Research Directions

10. PART 2. Worldwide Applications of SWAT PART 3. Using SWAT Software

11. North Carolina Agricultural and Technical State University Iowa State University Texas A&M University University Hohenheim : Geraman Bogor Agricultural University USAID USDA Agricultural Research Service Korea institute of Construction Technology United Nations University :Japan University of the Philippines Los Bonos Collage, Texas Institute for Applied Environment Research, Tarieton State University National Water Management Center (NWMC), NRCS :USA Verginia Technology :USA Grassland Soil&Water Research Laboratory Temple, Texas Ministry of Education and Training, Nong Lam University WASWC Chiang Mai University, Kasetsart University Land Development Department Collaboration SWAT NETWORK in Thailand

12. The 2nd International SWAT Conference was held in Bari, Italy during July 1-4, 2003. The focus of this conference was to allow an international community of researchers and scholars to discuss the latest advances in the use of the SWAT model to assess water quality trends.

13. The 3rd International SWAT Conference was held in Zürich, Switzerland in July 2005.

14. The 4th International SWAT Conference was held at UNESCO-IHE, Delft, The Netherlands, July 2-6, 2007. 2008 International SWAT Conference, October 15-19, 2008, Beijing, China

15. The 2009 SWAT ‐ SEA Conference, January 5 ‐ 8, Chiang Mai, Thailand

16. The 5th International SWAT Conference August 5-7, 2009 August 3-4, 2009 SWAT Workshops Boulder, Colorado

17. The SWAT Training and Workshop 19 -22 Sept, 2009 Organize by Land Development Department Soil and Water Conservation Association of Thailand WASWC Lecturers Raghavan Srinivasan Texas A&M Univ Manuel Reyes,North Carolina University Nguyen Kim LoiNong Lam Univ.HCMC, Vietnam Attachai Jintrawet,Chiang Mai Univ.,

18. http://www.brc.tamus.edu/swat/contact.html Contact Information Grassland, Soil & Water Research Laboratory, USDA-ARS 808 East Blackland Road Temple, Texas 76502 USA Information & Contact