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 related regional cooperation frameworks recommend more joint efforts, coordination to boost effectiveness

The importance of synergizing programs of activities of various Mekong related regional frameworks and improved mechanisms for information sharing and collaboration in overcoming the challenges of becoming a more resilient and sustainable Mekong region w

Water flow from China’s Jinghong dam to decrease

The outflow of water from the Jinghong hydropower station in China’s Yunnan province will decrease by about 25-45 percent over five days, according to an official notification from China’s Ministry of Water Resources being copied to the Mekong River Commi

MRC and China renew pact on water data provision and other cooperation initiatives

The People’s Republic of China has agreed to continue sharing hydrological data with the Mekong River Commission, which will contribute to better river monitoring and flood forecasting in the Mekong countries.