三十五年来,厦门西海域筑堤围海、填海面积超过20km~2,纳潮量减少1.2亿m~3以上,引起潮流流速减少,沉积速率增加,航道缩窄、淤浅,水域环境质量下降,水产养殖生物连年发生死亡,1986—1987年还发生赤潮。筑堤围海、填海使厦门西海域的自然环境和生态环境受到了严重影响,有必要及时采取防治措施。 Over the past 35 years, the embankment area in the west of Xiamen has been reclaimed to the sea, with an area of ​​more than 20km ~ 2 and a decrease of more than 120 million m 3 in tidal volume, which leads to the decrease of tidal current velocity, deposition rate, channel narrowing, shallow siltation, water environment quality Decline, aquaculture organisms died year after year, also occurred in 1986-1987 red tide. Embankment around the sea, reclamation to the Xiamen Western Sea natural environment and ecological environment has been seriously affected, it is necessary to take timely control measures.