Hydrodynamic Characteristics in Cu Lao Dung Mangrove Forest, Soc Trang, Vietnam

Abstract

Mangroves are unique ecosystems that play a crucial role in protecting coastal environments. This study was conducted in Cu Lao Dung mangrove forest area, Soc Trang, to analyze hydrodynamic conditions and the ecological role of mangroves in coastal environment. Field surveys were carried out during two monsoon seasons (Southwest and Northeast) in 2014 – 2015, measuring and analyzing hydrodynamic factors including water level fluctuations, wave heights, flow velocities, and suspended sediment concentration (SSC). The results indicate that flow within the mangrove forest tends to be weak and asymmetric, while wave energy significantly decreases as waves propagate into the forest, with reductions exceeding 70% for high waves. SSC shows an increasing trend from the coastal zone toward the interior of the forest, highlighting the role of mangroves in sediment deposition. Seasonal variations were also observed, with stronger hydrodynamic forces during the Northeast monsoon. These results increase the understanding of hydrodynamic mechanisms in mangrove ecosystems and provide a scientific information for the management, conservation, and restoration of mangroves, particularly in areas heavily impacted by climate change and human activities.