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Opening Gates Risks Farming, Closing Them Fuels Algae: The River Dilemma


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Opening river gates to combat algae leaves farmers short of water. Yet keeping the gates closed causes the river water to stagnate, raising concerns over ecosystem damage.

The debate surrounding the opening of the Nakdong River's gates ultimately leads to the question of how to utilize the river while simultaneously reviving it. On the Geum River, an attempt was made to mitigate agricultural water issues by installing alternative groundwater wells prior to opening the weir, while fishways are being operated at the Nakdong River estuary so that marine life can move back and forth even when the waterway is blocked.

On the Seomjin River, where the river and sea remain connected without an estuary barrage, various migratory fish species, including freshwater clams and endangered species, are found.

Through sites along the Nakdong, Geum, and Seomjin rivers, we examined what kind of life a flowing river can harbor and what common ground we must find between water utilization and ecosystem preservation.

(Supervised by: Sim Yeong-gu | Edited by: Kim Bok-hyung | Produced by: Knowledge Contents IP Team | Production Support: Ministry of Climate, Energy and Environment, Korea Environment Corporation)

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