Mangrove forests are coastal forest ecosystems consisting of groups of trees that can live in highly saline environments. One of the characteristics of mangrove plants, it has roots that protrude to the surface and function to breathe. The appearance of mangroves is like a stretch of shrub separating the land from the sea. The word mangrove comes from the word mangue (Portuguese) which means plant, with grove (English) meaning bush. Meanwhile in other literature it is mentioned that the term mangrove comes from the word mangi-mangi (Old Malay language).

Mangrove forests are a group of woody plant species that grow along protected tropical and subtropical coastlines and have a form of coastal land with anaerobic soil types. These mangroves are intentionally planted on the coast and downstream of the river to prevent abrasion as well as to preserve the habitat of Borneo fauna such as proboscis monkey.