According to the Ramsar Convention (www.ramsar.org) wetlands can be defined as land which is naturally or artificially always waterlogged, either continuously or seasonal, with a silent or flowing water. Water in wetlands can be freshwater, brackish and salty. High sea levels which inundate wetlands located on the seafront of no more than six meters at low tide conditions.
Wetlands scattered from the lowlands to the highlands
Examples of natural wetlands:
rivers, lakes, delta, peat swamp jungle, mangrove forests, kerapa, coral, lagoon
Examples of Artificial Wetlands :
reservoir, irrigation canal, field, ponds and ditches
The function and role of wetlands:
Wetlands are generally places that are rich in biodiversity. Humans acquire the benefits of wetlands, both economically, ecologically, and culturally.
Most of the world’s population live within the area or close to wetlands. Many cities in the world built on wetlands. Bandung in West Java was once a lake. Towns in the province of West Kalimantan are generally located near the river. The capital of West Kalimantan Province is located in the delta region of the Kapuas River.
Currently, there are seven areas that are designated as Ramsar sites. Those are Berbak National Park (Jambi), Sembilang National Park (South Sumatra), Rawa Aopa Watumohae (Southeast Sulawesi), Lake Sentarum Naional Park (West Kalimantan), Wasur National Park (Papua), Pulau Rambut Wildlife Reserve (Jakarta), and Tanjung Puting National Park in Central Kalimantan which was recently established by the government.
reference : www.ramsar.org