In India there are almost 1130 wetlands present, among which 49 designated as Ramsar sites and 130 are significant wetlands. These wetlands play an important role in maintaining biological diversity and ecological balance of the ecosystem. The criteria for identifying wetlands of national significance under the NWCP are the same as those prescribed by the 'Ramsar Convention on Wetlands.' This article will explain to you about the Criteria for Identification of Wetlands of National Importance which will be helpful in Environment preparation for the UPSC Civil service exam.

Wetlands in India

• India has the largest network of wetlands and Ramsar sites in South Asia, with 49 sites totaling 10,93,636 hectares as of February 2022.
• There are a total of 27,403 wetlands in India, with 23,444 inland wetlands and 3,959 coastal wetlands.
• Wetlands cover around 4.63 percent of India's land area, with paddy cultivation accounting for 70% of that.
• In India, natural wetlands include high-altitude wetlands in the Himalayas, flood plains of major river systems, saline and transient wetlands in dry and semi-arid regions, and coastal wetlands such as lagoons, backwaters, estuaries, mangroves, swamps, and coral reefs, among others.

Percentage of Wetland Area in India

Criteria for Identification of Wetlands of National Importance

Based on sites containing rare and representative wetland types

If it has a representative, rare, or unusual natural or near-natural wetland type found in the suitable biogeographic region.

Based on species and ecological community

• If it protects fragile ecological communities or vulnerable, endangered, or severely endangered species.
• If it helps plant and/or animal species at a key point in their life cycles, or if it provides a safe haven in the face of adversity.
• If it supports populations of plant and/or animal species that are vital for maintaining a biogeographic region's biological diversity.

Based on uniqueness

• Wetlands should be natural or near natural with their own biodiversity.
• It should be of significant hydrological, biological, or ecological importance in the natural functioning of a large river basin or coastal system, particularly if it is located in a trans-border location.

Specific criteria based on water birds

• If it can host 20,000 or more water birds on a regular basis.
• If it supports 1% of the individuals in a population of one species or subspecies of waterbirds on a regular basis.

Based of Flora and Fauna

• It should support a significant number of rare, vulnerable, or endangered plant or animal species or subspecies.
• It should have a significant number of individuals of any one or more of these species or it is of special value for maintaining a region's genetic and ecological diversity due to the quality and peculiarities of its flora and fauna.
• It should have a value as the habitat of plants or animals at a critical stage in wetlands.

Based on water flow

• It should support large numbers of individuals from certain groups of waterfowl, indicating wetland values, productivity, or diversity.
• With respect to population, it should support 1% of a population of one species or subspecies of waterfowl.

Based on Criteria of Fishes and Migratory birds

• It should support a significant proportion of indigenous fish subspecies.
• It should also include species or families, life-history stages, species interactions, and/or populations that are representative of wetland benefits and/or values, contributing to global biological diversity.
• It should hold an important source of food for fishes, spawning grounds, and nurseries.
• Wetlands should have a clear migration path on which fish stocks.

Based on Water/Life and Culture

• It includes a significant supply of food and water, as well as improved recreational and eco-tourism opportunities.
• If it is a significant source of enhanced scenic qualities, educational opportunities, and cultural heritage preservation (historic or religious sites).

Conclusion

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. A Ramsar designation requires authorities to strengthen the protection regime and to build defences against encroachment and other threats to wetlands.

FAQs 

Question: What are wetlands, and why are they important?

Question: What criteria are used to identify wetlands of national importance in India?

Question: How is the Ramsar Convention related to wetlands of national importance?

Question: What is the role of local communities in wetland conservation?

Question: What are some threats faced by wetlands in India?

MCQs 

1. Which international treaty focuses on the conservation and sustainable use of wetlands?

A) Kyoto Protocol

B) Ramsar Convention

C) Paris Agreement

D) Stockholm Convention

2. What is one of the main criteria for identifying wetlands of national importance in India?

A) Presence of amusement parks

B) Rich biodiversity and ecological significance

C) Urban development potential

D) Lack of any water bodies

3. Which of the following is a major threat to wetlands in India?

A) Preservation initiatives

B) Industrial pollution and encroachment

C) Increased rainfall

D) None of the above

4. Wetlands help in flood control by:

A) Absorbing excess rainfall and releasing it slowly

B) Increasing urban construction

C) Decreasing groundwater recharge

D) Draining water away immediately

5. Local community involvement in wetland conservation is important because:

A) They can provide traditional knowledge and sustainable practices

B) They can pollute the wetlands more easily

C) It minimizes biodiversity

D) None of the above

GS Mains Questions and Model Answers

Q1: Discuss the criteria for identifying wetlands of national importance in India and their significance for conservation.

Answer: The identification of wetlands of national importance in India is based on criteria such as biodiversity richness, ecological and hydrological significance, and socio-economic and cultural importance. Wetlands play a vital role in water purification, flood control, groundwater recharge, and supporting a diverse range of flora and fauna, including endangered species. Criteria also include their role as a habitat for migratory birds and support for human livelihoods. Recognizing and protecting such wetlands is essential to maintaining ecological balance, reducing disaster risks, and preserving biodiversity. The government works with local communities and international treaties like the Ramsar Convention to ensure the conservation and sustainable management of these critical ecosystems.

Q2: Analyze the major threats to wetlands in India and suggest measures to address them.

Answer: Wetlands in India face numerous threats, including pollution from industrial and household sources, encroachment due to urbanization, over-extraction of water, invasive species, and climate change impacts. These threats degrade wetland health, affecting biodiversity, water quality, and ecosystem services. To address these challenges, a multi-pronged approach is needed, involving robust legal frameworks, stricter enforcement of existing regulations, community participation, public awareness campaigns, and restoration projects. Sustainable land-use practices, pollution control measures, and collaboration with local stakeholders can ensure the long-term health and viability of wetlands.

Q3: Evaluate the role of the Ramsar Convention in wetland conservation and its impact on Indian wetlands.

Answer: The Ramsar Convention is an international treaty dedicated to the conservation and sustainable use of wetlands. As a signatory, India has designated several wetlands as Ramsar Sites, recognizing their global ecological significance and commitment to their protection. The convention promotes wise use, awareness, and scientific research for wetland management. Ramsar recognition brings attention to wetland conservation, encouraging both governmental and community efforts. However, challenges remain in ensuring effective implementation and addressing local threats. Continued collaboration, policy support, and public participation are necessary to maximize the positive impact of the Ramsar Convention on Indian wetlands.

Previous Year Questions on Criteria for Identification of Wetlands of National Importance

1. UPSC CSE - 2020

Question: "Explain the significance of wetlands in maintaining the ecological balance of an area."

Answer: Wetlands play a crucial role in maintaining ecological balance by serving as natural water filters, removing pollutants and improving water quality. They act as buffers against floods, absorbing excess water during heavy rainfall and reducing the impact of flooding. Wetlands also support biodiversity, providing habitats for a wide variety of flora and fauna, including migratory birds and endangered species. By recharging groundwater, regulating climate, and supporting livelihoods, wetlands contribute to the stability of ecosystems. Their conservation is essential for sustaining environmental health and resilience against climate change.

2. UPSC CSE - 2019

Question: "Discuss the challenges in wetland conservation and management in India."

Answer: Wetland conservation and management in India face challenges such as industrial and domestic pollution, encroachment due to urbanization, invasive species, over-extraction of resources, and climate change impacts. Policy implementation is often weak, and coordination between different stakeholders is lacking. To overcome these challenges, it is necessary to strengthen legal frameworks, enforce pollution control measures, engage local communities, and enhance public awareness. Integrated management plans that consider environmental, social, and economic aspects can lead to sustainable wetland conservation and ensure long-term benefits for both ecosystems and human communities.