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Four reservoirs in Taiwan are badly silted, says WRA

TAIPEI -- Four out of the 94 reservoirs around Taiwan are badly silted, according to the Water Resources Agency.

The four facilities — Shimen, Zengwen, Wushantou and Nanhua reservoirs — are among 26 key reservoirs supplying water to households and industry, with a total water storage capacity accounting for 96.1 percent of the total of all reservoirs around Taiwan, the agency said on its website Aug. 21.

The silting rate of Shimen Reservoir in Taoyuan County has reached 30 percent, while that of Zengwen is at 36 percent, Wushantou is at 37 percent and Nanhua is at 48 percent, the agency added.

Zengwen, Wushantou and Nanhua reservoirs are all located in southern Taiwan.

Measures have been taken to remove the silt, promote soil conservation in the upstream water catchment areas and improve the facilities' anti-silting capabilities in the hope that these important reservoirs can continue to function, the agency said.

1 Comment
August 25, 2014    curtisakbar@
This is a long term and continuous problem. There are no realistic options to solve the problem so we can only treat the symptoms by dredging the reservoirs from time to time. Annually would be costly, so I purpose a 5 year maintenance routine to ensure the long life of these resources without which famine, economic failure and industrial disaster would occur. To illustrate my point the Chianan plains is the major agricultural area of Taiwan and its water is mostly from Zengwen, Wushantou and Nanhua reservoirs. So if these reservoirs fail the canals that criss-cross the plains would dry up and farming would cease.
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