Why are mangroves called Coast Guard?

Due to the special breeding habits and strong roots of mangroves, dense mangroves can form a green Great Wall along the coast, which can resist wind and waves and strengthen dikes and revetments. At the same time, mangroves constantly fix seawater sediments, and with the accumulation of fallen leaves and bird droppings, new land can be formed. Mangroves also provide habitats for coastal birds, fish and shrimp, and become a base for maintaining coastal ecological balance. Therefore, mangroves are known as "coastal guards".

At low tide, mangrove plants form a green "sea woodland" by the sea, which is also called "blue ocean oasis". They play an important role in regulating tropical climate and preventing coastal erosion. A forest composed of mangrove plants is called "mangrove".

Mangrove is a wetland woody plant community, which grows in the intertidal zone of tropical and subtropical coasts and consists of evergreen trees or shrubs. It plays an important role in purifying seawater, preventing wind and waves, fixing and storing carbon and maintaining biodiversity. It has the reputation of "Coast Guard" and "Marine Green Lung", and it is also an important habitat for rare and endangered waterfowl and a breeding ground for fish, shrimp, crabs and shellfish.

Mangrove plants in China are distributed in Guangdong, Guangxi, Hainan, Fujian, Zhejiang and other provinces. The total area of mangroves in Guangxi is about 9330 hectares.

In recent years, China has vigorously promoted the protection and restoration of mangroves, and the mangrove area has increased to 29,000 hectares, making it one of the few countries in the world with a net increase in mangrove area. The "Coast Guard" is developing vigorously.