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米埔標誌：斑點魚郎
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基 圍 16/ 17 的 推 土 工 程
Gei wai 16/17 is managed as one
of the main roosting sites for the waterbirds that use Mai Po
Nature Reserve. This is done by carefully adjusting the water
level inside the gei wai over the course of the year,
so that the ponds has a range of water depths, from deep to shallow,
for the different birds to roost and feed in, depending on their
requirement.
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However,
the floor of the gei wai has been silting up over
the past decades because of mud that is brought into the
pond each month when water exchange takes place. As a result,
some parts of the floor of the pond has slowly been rising
and are now difficult to cover with water. These drier
areas can become quickly invaded by tall grasses and so
are not used by roosting birds. One such area is the floor
of the pond in front of Birdwatching Hide #3. |
| Earthmoving in gei wai 16/17. |
As a result, gei wai 16/17 will
be drained down from September to December 2003 so that earthmoving
works can be carried out to lower this part of the pond floor.
A bulldozer and backhoe will be used to carry out the works,
and the silt that is removed will be placed along the side of
the pond. The aim is to complete the work by December 2003 but
Mai Po staff will try their best to finish the work as soon as
possible so that the pond can be refolded and the wintering waterbirds
can once again use it for roosting and feeding.
To further minimise disturbance to the
wintering waterbirds, we have lowered the water levels in a number
of other gei wai (e.g. gei wai 6 and 11), so that
these waterbirds can use other ponds in the reserve in the meantime.
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