Water system. Current conditions After the land reclamation, the territory was left with a quite different water system. The construction of the new dyke made impossible the old natural interaction between the canals and the sea, so all the water courses were canalised into underground drainage pipes in order to avoid the construction of expensive dams. Only the area around the Dishui Lake was planned to have a superficial drainage system, which collects all the rainwater into the lake and expels it through a single canal during the low tide.
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