1. The Chao Phraya River Basin, basin 20
there is 125 square km.Covers an area of 11 provinces, Nakhon Sawan, sing Buri, Ayutthaya, Pathum Thani, Nonthaburi, Samut Prakan, Bangkok, Saraburi, Chai NAT, Lop Buri. Ang thong and basin is divided into 4 basin branch volume density of population 212 per square km.Average rainfall, 1 200 mm / year. Because the Chao Phraya River Basin was executed along with in the tha chin River Basin. So the demand of water use.
the current study quantity, water demand of the entire basin, is 12 2150 / yr., which were water shortage, is about 1, 500 - 2 500 / yr. water resources development project. At present, there are large - medium include 14 project. Can retain water 26 MCM, 0 irrigation area.14 million hectares and small projects 119 project area benefit 0.37 million hectares. The development plan to improve irrigation water resource short is original. The Chao Phraya River Basin has no potential development in the large water resources.
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