Laos-located Don Sahong hydropower project impacts discussed

Laos-located Don Sahong hydropower project impacts discussed

 

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VietNamNet BridgeHydropower projects on the Mekong River, including the Don Sahong in Laos, will pose a threat to the balance of water, fish, and alluvium resources, while harming the ecosystem in the Mekong Delta region, said an expert on climate change.

Prof. Doc. Le Anh Tuan from the Research Institute for Climate Change at Can Tho University, pointed out that Don Sahong, the second hydropower project to be developed on a section of the Mekong River running though Laos, could lead to an extinction of catfish and other migrant fish species in the river.

It would also remarkably reduce the number of endemic fish in downstream areas, Tuan said at a conference held on August 21 in the Mekong Delta city of Can Tho to prepare ideas to be contributed to the proposed Don Sahong hydropower project on the mainstream of the Mekong River.

Meanwhile, Nguyen Thanh Hai, office manager of the Steering Committee for Southwestern Region, said if all 12 hydropower projects are developed upstream, 55 percent of the Mekong River will become large reservoirs. Meanwhile, downstream areas, especially the Mekong Delta region, would suffer from environmental risks, he said.

At the same time, climate change and sea level rise would lead to salinity intrusion in most of the farming areas in the region, affecting the livelihood of about 30 million residents, he said.

Nguyen Huu Thien, an independent specialist, said the whole region would be affected by decisions on hydropower development in the Mekong River – one of the greatest rivers in the world possessing a rich resource that feeds millions of people.

He emphasised that the decisions must base on thorough, quality researches with consultations from governments and communities affected.

During the event, scientists updated the development process of hydropower projects on the Mekong River mainstream, assessment of environment impact of Don Sahong dam, and consultation process for Xayabury hydropower project.

Participants discussed ways to organise the consultations on Don Sahong project and how Mekong Delta localities engage in the process in a most effective manner.

The Mekong River is the world’s 12th longest river. It runs through China, Myanmar, Laos, Thailand, Cambodia and Vietnam.

VNA/VNN

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