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Vietnam Net Bridge
17 December 2009
VietNamNet Bridge – Aquatic
products output from the Mekong River will be halved to 200,000 tons a
year in the coming time due to the impacts of climate change and the
construction of 19 hydropower dams in the upper reaches of the river,
said a researcher.
The
4,900-kilometer river flowing through China, Myanmar, Thailand, Laos,
Cambodia and Vietnam currently supplies over 400,000 tons of fishery
products a year. However, upstream countries are developing 19 dams
serving their economic development, said Nguyen Ngoc Anh, head of the
Southern Irrigation Planning Institute.
Anh
told reporters in an informal meeting last week that in China alone an
eight-dam cascade was already underway in the upper reaches of the
Mekong. International Rivers, an organization which protects rivers and
defends the rights of communities dependent on them, says on its
website that two of the eight dams have been completed and three are
under construction.
The Mekong Delta will find
itself in the dilemma of rising sea levels caused by climate change and
depleting fresh water from upstream.
The ecological catastrophe
will surely result in the dying out of rare fish like the Irrawaddy
dolphin and giant catfish of the Mekong River, thus draining fishery
resources of the river by half.
The falling of aquatic
resources also rings alarm bells for rice-growing and other
agricultural activities, including fish farming, of the whole region,
he said.
Anh
cited that while one hectare of paddy field needed about 10,000 cubic
meters of fresh water, a hectare of shrimp farm needed a ten-fold water
supply.
Envisioning the threat, the
six countries drinking from the same river, backed by the Asian
Development Bank, have kicked off the economic cooperation of the
expanded Greater Mekong Sub-region, which also focuses on cooperation
in energy and agriculture.
More than 60 million people
rely on the Mekong, known as the Lancang in China, and its tributaries
for food, water, transport and other aspects of life, according to
International Rivers, and “the river supports one of the world’s most
diverse fisheries, second only to Brazil’s Amazon River.”
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