A soft shield of silt that took over 6,000 years to form and which protects the ‘rice bowl’ of Vietnam against intrusion from seawater, erosion and declining groundwater levels has been seriously stripped by Chinese dams on the Mekong River, say experts. Half of the river’s essential sediment is now trapped upstream and the delta may be in jeopardy of disappearing altogether. Thanh Nien News reports.
River-related news from the two important political meetings held this month in Beijing included calls to tackle risks related to silt buildup in the Three Gorges reservoir, to curb dam-building on China’s rivers and to protect rare fish in the Yangtze.
Changsha: Dongting Lake, the second biggest freshwater lake in China, will completely disappear from the earth because of accumulated silt after a century, experts have warned.
(July 24, 2006) Forestry and water-control projects are helping to keep silt at a stable level on the Yangtze River, particularly near the Three Gorges dam, the official Chinese news agency says.