围垦工程对河口地区水动力条件的影响分析

2-D hydrodynamic model was used to analyze the impact of reclamation on water level changes at the estuary of Lin hong River and the rationality of the calculation results . The result shows that the water level at the estuary of Lin hong River is affected by both impacts of the block on the north bank and the decrease of the tidal surface elevation difference. When single take the effect of inland current into account, the upper water level will rise during the sluice ; When consider the impact of tide separately ,the upper water level will drop down during the flood .The change of water level after the reclamation mainly lies on the dominant status of these two impacts.