印旛沼水質改善に向けた水位低下実験

抄録

Water level of Lake Inba-numa has been managed to be higher and less fluctuated than before since 1968 because of the water resources development. Unfortunately lake water quality became worse at that time, and these changes are thought to cause the disappearance of submerged plants in the lake.

In this paper, we present the results of drawdown experiment of lake water level to improve water quality through the restoration of submerged plants.