More than half of the country are short of water
About 59 percent of the total area of the country covering 548 districts are now classified as water shortage area, according to the National Water Resources Committee.
Of the 548 districts listed as water shortage, 138 districts are located in the Chao Phraya river basin and covered by irrigation system where second-crop cultivation is widespread.
http://englishnews.thaipbs.or.th/content/148757