EVS - Wetlands, case study. Definition, examples

Detailed study of wetlands.

1. WETLANDS Wetlands are transitional land between aquatic and terrestrial ecosystems. Wetland is a Submerged or water-saturated land, both natural and man-made, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide does not exceed 6 meters. Mangroves, lake littorals (areas adjacent to river channels beyond natural levees and periodically flooded during high river discharge), floodplains (areas lying adjacent to river channels beyond natural levees and periodically flooded during high river discharge), and other marshy or swampy areas are examples.

2. CLASSIFICATION OF WETLANDS

3. Functions of Wetlands Source of Water Wetland Products Water purifier Wetland for research and education Recreation property of Wetlands Combat Climate Change Habitats of migratory birds Biodiversity hotspot Flood and storm buffer zone

4. Significance of Wetlands Wetlands are a vital part of the hydrological cycle. They are rich in biodiversity and enrich the ecosystem services. Wetlands provide ecosystem services such as waste assimilation, flood mitigation , erosion control , groundwater recharge, micro climate regulations and water purification etc. Wetlands are part of cultural heritage by supporting significant recreation and socio – cultural activities.

5. Conclusion Global climate change has emerged as a major driver of wetlands loss and degradation, particularly at high altitudes and along coastlines. According to studies, a one-meter rise in sea level would put 84 percent of India's coastal wetlands at risk. Changing hydrological regimes, eutrophication, and algal blooms are all threats to inland wetlands as a result of rising temperatures.Hence it is important to conserve the Wetland ecosystem. THANKS SY –A BHAGYASHREE D KHOT