The Rajasthan Government is taking a proactive approach to preserving the delicate wetland ecosystem within the state, with plans in place for the development of 52 designated wetlands. Notably among these are Sambhar Lake and Keoladeo Ghana National Park, which both bear the esteemed title of ‘Wetland of International Importance’ as recognized by the Ramsar Convention on Wetlands.
Understanding Wetlands
Defined as lands that serve as a transitional zone between terrestrial and aquatic ecosystems, wetlands are areas where the water table remains at or near the surface. Alternatively, they can also be lands covered by shallow waters.
The Importance of Wetlands
These highly productive ecosystems are responsible for providing nearly two-thirds of the world’s fish harvest. In addition, wetlands play a crucial role in supporting biodiversity and contributing to the ecological well-being of the watershed. High nutrient levels and shallow waters foster the growth of organisms that form the base of the food web, providing nourishment for various species of fish, amphibians, shellfish, and insects. Additionally, microbes, plants, and wildlife in wetlands contribute to global water, nitrogen, and sulfur cycles. Wetlands’ ability to store carbon in their plant communities and soil helps mitigate the effects of climate change.
Human Dependence on Wetlands
Wetlands are not just important for nature and the environment; they also directly impact human lives. More than one billion people worldwide rely on wetlands for their livelihood. Serving as a source of food, raw materials, genetic resources for medicine, and hydropower, wetlands are invaluable. They also hold cultural and spiritual significance for indigenous and Aboriginal people.
Potential Threats to Wetlands
Urbanization poses a significant threat to wetlands, particularly those situated near growing urban centers. These areas often face increasing developmental pressures as space is needed for residential, industrial, and commercial facilities. Wetlands also face threats from agricultural activities and pollution, with many wetland areas being converted into paddy fields or contaminated with fertilizers, pesticides, and industrial waste. Climate change and activities such as dredging and sand mining also pose significant risks to wetland ecosystems.
Global Conservation Efforts
Recognizing the importance of wetland preservation, international bodies like the Ramsar Convention work towards conserving the ecological character of wetlands. The convention, which came into force in 1975, encourages local, national, and international action towards the sustainable use of wetlands.
Conservation Efforts in India
In India, the National Plan for Conservation of Aquatic Ecosystems (NPCA) serves as the central conservation program for both wetlands and lakes. The Wetlands (Conservation and Management) Rules, 2017, also play a crucial role in protecting India’s wetlands by prohibiting certain activities, enforcing rules through state Wetlands Authorities, and recommending the establishment of Integrated Management Plans.
Last Modified: February 9, 2024