Ecosystem Reference
Ecosystem Mekong
Type River (basin)
Salinity freshwater
Other Names Dza-chu, Lan-ts'ang (Ref. 6318); Lancang Jiang, Mae Nam Khong (Ref. 53495)
Southeast Asia 32° N 9° N - 96° e 107° e
Location Map
Size Ref
River Length 4425 km Area Drainage Area 810000
Average Depth Max Depth Ref
100 Meters Depth
Description Rises in the eastern Tibethan Plateau, passes through China, Myanmar, Laos PDR, Thailand and Kampuchea before it drains into the South China Sea (Ref. 6318). The river has been divided into three portions: The Upper Mekong from the watershed southward to north of Chiangsae, Thailand; the Middle Mekong, from Chiangsaen to the Khone Falls (LeePee) of southern Laos PDR; and from then the Lower Mekong until reaching the delta. The water level of the Mekong changes seasonally by 10-20 m, being highest during the summer in northern areas and lowest in April in souther areas.
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