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Commission Says Mekong River at “Very Worrying Water Levels”

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Mekong River Being 'Dammed' with Uncertainty by China and Laos

The Mekong River Commission (MRC) has once again asked China to share all of its water data because of “very worrying water levels” due to outflow restrictions from Chinese hydropower dams upstream.

The Mekong River has once agian turned blue along the Thai-Laos border, from its usual murky brown colour. The blue color signaling shallow water and low levels of nutrition-rich sediment. Caused partially from outflow restrictions from the Jinghong dam in China’s Yunnan province, the MRC said.

Friday’s statement said low rainfall and dams on the Lower Mekong and tributaries also contributed to the drop in levels. “There have been sudden rises and falls in water levels immediately downstream of Jinghong and further down to Vientiane,” said Winai Wongpimool, director of the Mekong River Commission Secretariat’s Technical Support Division.

Such fluctuations affect fish migration, agriculture and transportation that nearly 70 million people rely on for their livelihoods and food security.

“To help the Lower Mekong countries manage risks more effectively, we call on China and the Lower Mekong countries themselves to share their water release plans with us,” Winai said.

China pledged to share data

The MRC said normal conditions may be restored if large volumes of water are released from Chinese dams’ reservoirs. China’s Ministry of Foreign Affairs disputed the Mekong River Commission’s findings, adding that there are many causes of downstream drought.

China last year pledged to share data from it dams with Mekong River Commission member countries Laos, Thailand, Cambodia and Vietnam. In January, Beijing notified neighbours that its dams were filling reservoirs until Jan. 25.

Outflow levels at Jinghong Dam were 785 cubic metres per second in early-January before rising to 1,400 cubic metres per second in mid-January, the Mekong River Commission said.

However, levels dropped again in February and were 800 cubic metres per second as of Thursday, the Mekong River Commission said. The statement did not mention any recent notification from Beijing.

China said the dam’s outflow has been consistently more than 1,000 cubic meters per second since the end of January, a level it says is nearly twice the natural flow of the river. It called on the Mekong River Commission “to avoid causing public misunderstanding”.

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