The primary way that wetlands filter water is through their role in water flow. As sediment-containing water passes through wetlands, the water flow slows. Sediment will drop out of the water and become part of the ground layer.

A wetland filtration system, also called a bog, is a natural filter for your pond. Water flows into the bottom of the wetland filter and is pushed upward. It goes up through gravel and plant roots, which filter the water. The rocks and plants remove nutrients algae use to grow.

Wetlands within and upstream of urban areas are particularly valuable for flood protection. The impervious surface in urban areas greatly increases the rate and volume of runoff, thereby increasing the risk of flood damage.

Wetlands purify our water They trap sediments and remove pollutants, which helps to purify water. This certainly beats expensive, human-made filtration systems.

China

“Losses (of wetlands) have been driven by mega trends such as climate change, population increase, urbanisation, particularly of coastal zones and river deltas, and changing consumption patterns that have all fuelled changes to land and water use and to agriculture,” it says.

Long name: The Ramsar Convention on Wetlands of International Importance Especially as Waterfowl Habitat is an international treaty for the conservation and sustainable use of wetlands. It is also known as the Convention on Wetlands. It is named after the city of Ramsar in Iran, where the convention was signed in 1971.

Harike Wetland

On 2 February 1971, the International Treaty for the Conservation and Sustainable Use of Wetlands was signed at a city of Iran called Ramsar, hence the name Ramsar Sites. 1- Ramsar Convention or the Convention of Wetlands was established in 1971 and came into force in the year 1975, upon receipt by UNESCO.

The United Kingdom currently has 175 sites designated as Wetlands of International Importance (Ramsar Sites), with a surface area of 1,283,040 hectares.

the Pantanal

The countries with the most Sites are the United Kingdom with 175 and Mexico with 142. Bolivia has the largest area with 148,000 square km under the Convention protection; Canada, Chad, Congo and the Russian Federation have also each designated over 100,000 square km.

Renuka Wetland

In 2020, five new sites has been added into the list taking the total Ramsar sites numbers to 42 spreading over sq km area. This account attempts to provide the basic information and issues with the new Ramsar sites as mentioned on Ramsar websites and in other sources.

Tso Kar wetland

Spread across India and Bangladesh over 1 million ha area, Sunderban is the world’s largest single contiguous mangrove swamp. The Indian part received its formal designation yesterday thus bringing the entire swamp under the ambit of Ramsar wise use framework.

The lake is in the process of being identified under the Ramsar Convention as a wetland of international importance. This will be the first trans-boundary wetland in South Asia under the convention.

Indian sites on the Montreux Record