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Mekong River at 'worrying' low level amid calls for more Chinese dam data

WorldFeb 12, 2021 04:00AM ET
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© Reuters. A view of the Mekong river bordering Thailand and Laos is seen from the Thai side in Nong Khai

BANGKOK (Reuters) - Water levels in the Mekong River have fallen to a "worrying level" in part due to outflow restrictions from Chinese hydropower dams upstream, the Mekong River Commission (MRC) said on Friday, calling on Beijing to share all of its water data.

The vital waterway has turned blue along the Thai-Laos border, from its usual murky brown colour - signaling shallow water and low levels of nutrition-rich sediment - partially from outflow restrictions from the Jinghong dam in China's Yunan province, the inter-governmental 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 MRC 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.

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 did not reply to requests for comment on Friday, a public holiday.

The U.S.-funded Mekong Dam Monitor, which uses satellite data to track water levels, also said it noticed daily fluctuations in water releases from China's Jinghong Dam in February.

China last year pledged to share data from it dams with MRC member countries Laos, Thailand, Cambodia and Vietnam.

In January, Beijing notified neighbours that its dams were filling reservoirs and flow will be restored to "normal operation status" on 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 MRC said.

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

Mekong River at 'worrying' low level amid calls for more Chinese dam data
 

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