Mekong Basin

The Mekong River is one of the world’s great river systems, flowing 4,909 km through six countries: China, Myanmar, Thailand, Lao PDR, Cambodia, and Viet Nam. The source of the river’s great productivity is its seasonal variation in water level and the range of wetland habitats inundated. The Mekong River Basin’s biodiversity is immense, even in comparison with other parts of tropical Asia. Its biodiversity is fundamental to the viability of natural resource-based rural livelihoods of a population of 60 million people living in the Lower Mekong Basin.

To learn more about the Mekong River Basin, visit the sections listed below:

PhysiographyThe Mekong River Basin consists of seven broad physiographic regions featuring diverse topography, drainage patterns, and geomorphology. Learn about the form of the Mekong River channels and how they connect. more>>

ClimateThe Mekong River Basin ranges from the glaciated highlands of the Tibetan Plateau to the hot and humid lowlands of Southeast Asia and encompasses 16 distinct WWF Ecoregions. more >>

Hydrology: The source of the Mekong’s great productivity is its seasonal variation in water level, resulting in rich and extensive wetlands. The annual flood season is especially important in the Lower Mekong Basin where it has shaped the environment and life in the region. more >>

Natural Resources: The Mekong River Basin contains a wealth of natural resources, including one of the world’s largest inland fisheries. more>>

Stories from the Mekong - These regularly updated stories provide a voice to people in the Mekong Basin and can help to bring both contemporary and traditional issues to life. more>>

Latest News

Mekong River Commission Launches Two Joint Projects to Better Manage the Mekong Basin Resources and Address Flood and Drought Issues

The Mekong River Commission launched two joint projects between Cambodia and Lao PDR, and Cambodia and Thailand to better ...

Mekong River Commission, Korea Development Institute Discuss Knowledge Sharing Programme

Water security and integrated river basin management, challenges and opportunities in hydropower development ...

Joint Visit to the Mekong River Strengthens Research Collaboration

On 13 and 14 December, representatives from the Mekong River Commission (MRC) Member Countries, China, the International Water Management Institute (IWMI), and the MRC Secretariat made a joint visit to the Mekong River.