There are 66 large and small rivers in Thailand, with a total length of 15262 km. The drainage area of the three main rivers, namely, the Mekong River, the maigong River and the Mongolian River, accounts for 65% of the total land area of Thailand

(1) Northern region. There are eight rivers in the northern region, namely Binhe River, Wanghe River, Yonghe River

Nanhe River, Maiguo River, Luohe River, Yinhe River and Baihe River are the longest, with a total length of 740 km. There are two dams built, one is shiliji dam in wudaldi Prefecture, and the other is nalixuan dam in pengshiluo Prefecture. In addition, the Thai government has built the Bhumibol dam on the Bin River and the Jilong dam on the Wang River.

(2) The northeast. There are three rivers in Northeast China, namely Meng River, Qihe River and Songkan river. Qihe river is 765km long in length, which is the longest river in Northeast China. There are two dams on the river, namely Nanming dam and nanpolong dam; the second is Menghe River, with a total length of 641km. The Thai government has built more than 10 dams on the mon River, including Damon dam, banggukeng dam, pimai dam and bang Kongchun dam and salapidi dam, etc.

(3) Central region. There are six rivers in the central region, namely, the Mekong River, the supan River, the maigong River, the bangbagong River, the Basa River and the sagaigan river. The longest one is the maigong River, with a total length of 550 km. Four dams are jointly constructed, namely, the kaolang dam, the selaklin dam, the tatunga dam, and the waqilalonggong dam. The chuaina dam is built in the Mekong River, the gaxiao dam is built in the supan River, and the Basa spring river is built in the Basa river Se dam and palonjo dam.

(4) Southern region. In southern Thailand, there are seven rivers, namely, the kerila River, the Dabi River, the langi River, the Dongli River, the beidanian River, the Golog River and the jiawuli river. The length of the rivers is relatively short and there are few dams. The longest one is the Dabi River, with a total length of about 232 km. Bangku dam and banglan dam are built, followed by the beidanian River, with a total length of 190 km.