泥沙是营养物质(如 N、P)进入海岸水域的主要来源之一,沿海各省区所排放出的有机物、重金属离子正是随着河流泥沙、城市污泥进入海洋的。研究表明,99%的有机物来自泥沙。研究表明,泥沙是人类生活污水和工业废水中磷的沉积源,吸附在泥沙上有机物会有季节性地释放到水中,使水体富营养化。从赤潮发生的 Sediment is one of the main sources of nutrients (such as N and P) entering the coastal waters. The organic pollutants and heavy metal ions released by the coastal provinces and autonomous regions just follow the river sediment and enter the ocean. Research shows that 99% of the organic matter comes from sediment. Studies have shown that sediment is the deposition source of phosphorus in human domestic sewage and industrial waste water. Organic substances adsorbed on the sediment will be released into the water seasonally to make the water body eutrophication. Occurred from the red tide