In 1986, a severe storm surge occurred along the coast of Guangxi, China, which was not seen in a century. Nearly 3 / 4 of the 398 km seawall in Hepu County was washed away by the waves. Where there are mangroves outside the seawall, the seawall remains intact. Therefore, local people regard mangrove forest as "coast guard".
Mangrove is not red. It is a kind of plant community growing in tidal flat wetlands on tropical and subtropical coastal beaches. Most of the tree species belong to mangrove plants, so it is named mangrove. In fact, these shrubs or trees are evergreen plants. Mangrove is located in the transition zone from land to ocean, which makes it have a series of unique properties.
Mangrove seeds look like green beans, hang on the vine rack, germinate on the mother tree, grow into seedlings, fall off into the sea, insert the sediment like a ship anchoring, and develop into a small tree. Sometimes, the seedlings that have not been fixed in the sediment will be swept away by the sea when they encounter the tide, but when the tide ebbs, the seedlings will take root and grow elsewhere. Year after year, mangroves thrive on this strange growth mode. The intertwined and mutually supporting structure is as stable as Mount Tai in the wind and waves, which not only dispels the impact of wind and waves and plays the role of stabilizing the embankment, but also plays the role of protecting the beach and purifying the sea water. Moreover, mangroves are also a paradise for seabirds and other marine creatures!