China and the Geopolitics of the Mekong River Basin

Two decades after the Paris Peace Accord that ended the proxy war in Cambodia, the Mekong Basin hasre-emerged as a region of global significance. The rapid infrastructure-led integration of a region some call “Asia’s last frontier” has created tensions between and among China and its five southern neighbors – Cambodia, Laos, Myanmar, Thailand, and Vietnam. Both expanded regional cooperation as well as increased competition for access to the rich resources of the once war-torn region have created serious environmental degradation while endangering food security and other dimensions of human security and even regional stability.

China’s seemingly insatiable demand for raw materials and tropical commodities has made it a fast-growing market for several Mekong countries and an increasingly important regional investor. Economic integration has been boosted by a multibillion dollar network of all-weather roads, bridges, dams, and power lines largely financed by the Asian Development Bank (ADB) that is linking the countries of the Lower Mekong to each other and to China. To date, the ADB’s Greater Mekong Subregion (GMS) cooperative development program has primarily benefited large population centers outside the basin proper in China, Thailand, and Vietnam. Unfortunately, the same infrastructure that speeds the flow of people and goods to urban centers also facilitates the environmentally unsustainable exploitation of the forests, minerals, water resources, and fisheries that are still the primary source of food and livelihoods to millions of the Mekong’s poorest inhabitants.

No aspect of China’s fast-growing role and influence in the Mekong region is more evident and more problematic than its drive to harness the huge hydroelectric potential of the Upper Mekong through the construction of a massive cascade of eight large- to mega-sized dams on the mainstream of the river in Yunnan Province. The recently completed Xiaowan dam, the fourth in the series, will mainly be used to send electricity to the factories and cities of Guangdong Province, its coastal export manufacturing base some 1,400 kilometers away. China’s Yunnan cascade will have enough operational storage capacity to augment the dry season flow at the border with Myanmar and Laos by 40-70 percent, both to maintain maximum electricity output and facilitate navigation on the river downstream as far as northern Laos for boats of up to 500 tons.

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Photo Credit: “Xiaowan Dam Site,” courtesy of International Rivers.