an open tidal area with islands will be created to provide a high tide roosting habitat for migratory waterbirds, especially shorebirds that use deep bay 区内建有有多个小岛的潮汐区,为后海湾的迁徙水鸟,尤其是涉禽提供涨潮时的栖息生境。
most tidal areas in sihcao are distributed near the outlet to the sea where the salt content is low and water flows slowly . therefore, they are ideal habitats for animals and plants and nourish a wide variety of bathos, such as fish, shrimps and shells . when low tide comes, we can see flocks of birds and packs of fiddler crabs come seeking food in these areas 四草地区的潮间带多分布于出海口,因为此地位于河海交界,盐分较低、水流缓慢,适合动、植物栖息,孕育丰富的鱼虾贝类等底栖生物,退潮时经常吸引成群的鸟类及招潮蟹前来觅食。