Tulisan 2 B.Inggris

A mangrove is a tropical marine tree or shrub of the genus Rhizopora. Mangroves have special aerial roots and salt-filtering taproots that enable them to thrive in brackish water (brackish water is salty, but not as salty as seawater).

There are several species of mangrove trees found all over the world. Some prefer more salinity, while others like to be very close to a large fresh water source (such as a river). Some prefer areas that are sheltered from waves. Some species have their roots covered with seawater every day during high tide. Other species grow on dry land, but are still part of the ecosystem.

Mangroves need to keep their trunk and leaves above the surface of the water. Yes, they also need to be firmly attached to the ground so they are not moved by waves. There are there types of mangrove roots that play an important role of it :

(1) support roots which directly pierce the soil.

(2) level-growing roots which twist upwards and downwards, with the upward twists emerging on the water surface.

(3) level-growing roots which downwards twists (sub-roots) appear on the water surface.

Any part of a root that appears above the water flows oxygen to the plant under water surface. As the soil begins to build up, these roots produce additional roots that become embedded in the soil.