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Wetlands: A Crucial National Public Good for India

Emphasizing the ecological functionality of wetlands over mere beautification to safeguard cultural heritage and promote sustainable governance.
G
Gopi
••6 mins read
40% of India’s wetlands lost in 30 years: urgent reforms needed
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1. Traditional Knowledge and India’s Wetland Heritage

World Wetlands Day 2026 highlighted the theme ‘Wetlands and traditional knowledge: Celebrating cultural heritage’, underscoring the longstanding relationship between communities and wetland ecosystems. In India, this theme resonates strongly because traditional water systems have historically enabled ecological balance and community resilience. Wetlands across regions served as sources of food, water, rituals, and livelihoods.

Examples across States show how human-made and natural wetlands supported sustainable water management. In Tamil Nadu, cascading kulam tank systems ensured irrigation security for paddy cultivation. In Wayanad, kenis, shallow drinking-water wells over 200 years old, serve both cultural and functional needs. Andhra Pradesh’s Srikakulam wetlands preserve traditional fishing practices that continue to sustain communities.

However, even as these systems reveal the depth of traditional ecological knowledge, their degradation demonstrates shrinking cultural continuity and ecological collapse. Weakening traditional practices disconnects communities from wetlands and accelerates unsustainable land-use patterns.

If traditional knowledge is not integrated with modern governance, India risks losing both ecological stability and cultural continuity, weakening long-term resilience and water security.

2. Policy Framework: Adequacy in Law, Gaps in Implementation

India’s wetland governance framework includes the Wetlands (Conservation and Management) Rules, 2017, which provide mechanisms for identifying, notifying, and regulating wetlands. Despite this, nearly 40% of India’s wetlands have disappeared in the last three decades, and around 50% of the remaining wetlands show ecological degradation. This mismatch between regulation and outcomes highlights gaps in enforcement.

The National Plan for Conservation of Aquatic Ecosystems (NPCA) provides updated guidelines for structured planning and monitoring, while the Coastal Regulation Zone (CRZ) framework protects coastal wetlands. Ramsar designation for 98 sites offers international recognition and obligations. Collectively, these cover freshwater, coastal, urban, riparian, and high-altitude wetlands, but coordination across instruments remains weak.

Institutions such as the M.S. Swaminathan Research Foundation have demonstrated successful models of participatory wetland management, mapping, and livelihood-linked conservation. Yet, without unified implementation across States, policy tools cannot translate into ecological outcomes.

If regulatory tools function in silos, wetlands continue to degrade despite strong legal frameworks, undermining ecological services and disaster resilience.

Key Challenges:

  • 40% wetland loss in 30 years
  • 50% of remaining wetlands degraded
  • Fragmented policy implementation
  • Limited coordination between NPCA, CRZ, Ramsar obligations

3. Drivers of Wetland Degradation: Development, Hydrological Disruption & Pollution

Wetlands are inherently multiple-use systems, making them both valuable and vulnerable. India’s population density has intensified pressure, leading to encroachment and land conversion for infrastructure, real estate, and transport networks. Catchment degradation has distorted natural drainage systems, while outdated cadastral records complicate protection efforts.

Hydrological disruptions such as dams, embankments, channelisation, sand mining, and groundwater extraction alter the timing and quantity of inflows. Floodplains and riparian wetlands are treated as surplus land rather than dynamic river systems, shrinking their ecological function. Urban wetlands face contradictory expectations — to store floodwater, absorb sewage, and support biodiversity — often without protective zoning.

Pollution accelerates degradation through eutrophication, triggered by untreated sewage, industrial effluents, agricultural runoff, and solid waste dumping. Coastal wetlands face dual pressures: development from the landward side and sea-level rise, cyclones and shoreline change from the seaward side, squeezing mangroves and lagoons.

Ignoring these drivers reduces wetlands’ flood buffering, water purification and carbon storage capacities, ultimately increasing disaster risks and water insecurity.

Key Causes:

  • Untreated sewage inflows and industrial effluents
  • Catchment alteration and groundwater over-extraction
  • Encroachment and real estate expansion
  • Climate-induced sea-level rise and cyclones

4. Institutional and Capacity Constraints

State Wetland Authorities often face shortages of staff, funding, and technical expertise. Their mandates span hydrology, ecology, GIS mapping, legal enforcement, and community engagement — areas requiring specialised training. Limited institutional capacity results in weak management plans, slow notifications, and ineffective restoration efforts.

Furthermore, monitoring systems are inconsistent across States, and local governance bodies may lack technical tools to address encroachment, hydrological disruptions, or pollution. This affects India’s ability to operationalise national guidelines or meet Ramsar commitments.

Without strengthening institutions and capacities, policy reforms remain on paper, and wetland degradation continues unchecked.

Capacity Gaps:

  • Lack of trained hydrologists, ecologists, GIS experts
  • Understaffed State Wetland Authorities
  • Weak enforcement and monitoring systems

5. Pragmatic, Contextual, and Multi-Scale Approaches

A shift is needed from cosmetic beautification projects toward ecological restoration and programme-based planning. Wetland conservation must be integrated at watershed, basin, and landscape levels, replacing departmental silos with coordinated governance structures.

Notification and demarcation under the 2017 Rules must be strengthened with transparent public mapping, grievance redress, and participatory ground-truthing. Urban and peri-urban wetlands require treated wastewater inflows, supported by functional sewage treatment systems. Hydrological connectivity must be restored by clearing feeder channels, regulating extraction, and managing waste.

Coastal and riparian wetlands should form the backbone of disaster risk reduction strategies, complementing grey infrastructure. Finally, India requires a formal, national capacity mission to train wetland managers in hydrology, restoration ecology, GIS/remote sensing, environmental law, and community governance.

If modern scientific tools are not paired with traditional ecological knowledge, India risks creating plans without community legitimacy or long-term sustainability.

Key Measures:

  • Publicly accessible wetland boundary maps
  • Ensuring treated wastewater inflows
  • Basin-level hydrological management
  • Integrating wetlands into disaster risk reduction
  • National wetland capacity-building mission

6. Aligning Science, Policy, and People

India’s mapping and monitoring capacity is growing with satellite remote sensing, drones, and time-series analytics that track encroachment and ecological change. Updated NPCA guidelines promote measurable, science-based management plans, while Ramsar’s principles of wise use and clear boundary demarcation align with national needs.

However, conservation requires collective action across society. Governments must enforce and finance wetland protection; urban authorities must stop treating wetlands as wastelands; industries must prevent pollution at source; educational institutions must train the next generation of wetland professionals; and citizens must safeguard local lakes, ponds, mangroves, and springs.

"In the end, our society will be defined not only by what we create, but by what we refuse to destroy." — John Sawhill

If science, policy, and people do not converge, wetlands will continue to decline, harming India’s long-term water security and climate resilience.

Conclusion

World Wetlands Day 2026 reinforces that wetlands are not ornamental spaces but foundational ecosystems embedded in India’s cultural heritage and water security. Sustaining them requires combining traditional knowledge with modern tools, integrating policies across scales, and strengthening community-centred governance. Protecting wetlands today will directly shape India’s ecological resilience and water future.

Quick Q&A

Everything you need to know

Wetlands are ecosystems where water covers the soil or is present near the surface for part or all of the year. They include rivers, lakes, marshes, floodplains, mangroves, and man-made systems such as tanks and ponds. Wetlands perform critical ecological, economic, and cultural functions.

Ecological importance: Wetlands act as natural water purifiers, filtering pollutants, sediments, and excess nutrients. They support biodiversity by providing habitat for fish, birds, amphibians, and other species. Wetlands also mitigate floods by absorbing excess rainwater and regulate groundwater recharge.

Economic significance: Many communities depend on wetlands for livelihoods such as fishing, rice cultivation, and aquaculture. Traditional systems like Tamil Nadu’s kulams and Kerala’s kenis demonstrate how wetlands support agriculture, water security, and festivals.

Cultural relevance: Wetlands are intertwined with human traditions, rituals, and festivals. They embody traditional knowledge and community stewardship, aligning with the 2026 World Wetlands Day theme: ‘Wetlands and traditional knowledge: Celebrating cultural heritage’. The recognition of wetlands as both ecological and cultural assets is essential for sustainable development and resilience in India.

India has a strong legislative foundation for wetland conservation, including the Wetlands (Conservation and Management) Rules, 2017, Coastal Regulation Zone (CRZ) provisions, and the National Plan for Conservation of Aquatic Ecosystems (NPCA). These frameworks outline identification, notification, protection, and management of wetlands. However, wetlands remain highly vulnerable due to several factors.

Key threats:

  • Encroachment and land conversion: Approximately 40% of natural wetlands have disappeared over the last three decades due to infrastructure development, roads, and real estate expansion.
  • Hydrological disruption: Dams, embankments, channelization, sand mining, and groundwater over-extraction alter water timing and flow, affecting wetland ecosystems.
  • Pollution: Untreated sewage, industrial effluents, agricultural runoff, and solid waste cause eutrophication, biodiversity collapse, and loss of natural flood-buffering capacities.
  • Capacity constraints: State wetland authorities are often underfunded, understaffed, and lack technical expertise in hydrology, ecology, GIS, legal enforcement, and community engagement.

Conclusion: While India has legal frameworks, their weak implementation, coupled with developmental pressures and insufficient capacity, explains the continued degradation of wetlands. Strengthening governance, monitoring, and participatory approaches is essential to reverse these trends.

Traditional knowledge refers to practices developed over centuries by local communities to manage water, biodiversity, and livelihoods. In wetlands, such knowledge can complement modern conservation methods.

Examples of traditional practices:

  • Tamil Nadu’s tank systems or kulams form cascading irrigation networks for paddy cultivation while maintaining hydrological balance.
  • Kerala’s kenis, shallow wells crafted over 200 years ago, provide drinking water, support rituals, and manage seasonal water fluctuations.
  • Srikakulam wetlands in Andhra Pradesh sustain traditional fishing practices while maintaining aquatic biodiversity.

Contribution to conservation: These practices ensure minimal ecological disruption, maintain catchment integrity, and promote community stewardship. Integrating traditional knowledge into modern frameworks enhances participatory management, compliance, and restoration outcomes. For example, involving local communities in mapping, demarcation, and monitoring of wetland boundaries improves enforcement and sustainability. The 2026 World Wetlands Day theme emphasizes using such knowledge as evidence for effective wetland governance.

Urban wetlands face challenges due to population pressure, encroachment, pollution, and infrastructure development. They are often treated as stormwater drains or dumping grounds. Untreated sewage and industrial effluents lead to eutrophication, biodiversity loss, and reduction in their natural flood-buffering ability.

Coastal wetlands, including mangroves, lagoons, and mudflats, face a double bind: landward development pressures and rising sea levels due to climate change. Activities like port expansion, aquaculture, and tourism reduce space for natural migration, leaving ecosystems vulnerable to cyclones and erosion.

Institutional and regulatory challenges: CRZ enforcement and Ramsar site management often lack integration with local livelihoods. Capacity gaps, insufficient staffing, and poor coordination across departments exacerbate degradation. Addressing these challenges requires basin-level planning, wastewater treatment before inflow, disaster risk integration, and community-sensitive governance to protect both urban and coastal wetlands.

Successful wetland restoration examples:

  • The M.S. Swaminathan Research Foundation has collaborated with state governments and local communities to implement participatory wetland management, mapping, and livelihood-linked restoration projects.
  • In Kerala, community-led initiatives have restored traditional kenis and small wetlands, improving water availability and biodiversity.
  • In Tamil Nadu, rejuvenation of tank cascades has improved irrigation efficiency, groundwater recharge, and fishery-based livelihoods.

Key success factors:
  • Community engagement and participatory governance.
  • Integration of traditional knowledge with modern hydrology and GIS mapping.
  • Linking restoration to livelihoods, ensuring long-term sustainability.

Implications: These examples demonstrate that restoration initiatives can deliver ecological, economic, and social benefits simultaneously. Scaling up such practices across India, coupled with NPCA guidelines and Ramsar commitments, can significantly improve wetland conservation outcomes.

Policy and institutional framework: India has comprehensive legal instruments such as the Wetlands (Conservation and Management) Rules, 2017, CRZ regulations, NPCA guidelines, and Ramsar site obligations. These provide mechanisms for identification, notification, protection, restoration, and monitoring.

Strengths:

  • Clear legal authority and responsibilities for central and state bodies.
  • Integration of wetlands into broader water and disaster management plans.
  • Global recognition through Ramsar sites encourages international accountability.

Limitations:
  • Implementation gaps due to understaffed and underfunded authorities.
  • Weak coordination across departments leading to fragmented management.
  • Lack of effective monitoring and enforcement results in continued degradation and encroachment.

Way forward: Policies must shift from siloed, project-based approaches to integrated, basin-scale programs. Strengthening institutional capacity, building expertise in hydrology, ecology, GIS, and community governance, and aligning policy with scientific monitoring can transform wetlands from degraded ecosystems into resilient, multiple-use landscapes.

Wetlands as nature-based infrastructure: Wetlands, including mangroves, mudflats, floodplains, and urban waterbodies, act as natural buffers against floods, cyclones, storm surges, and sea-level rise. They store excess water, reduce velocity of flows, and dissipate wave energy, thereby protecting human settlements and agricultural land.

Case study – Coastal mangroves: Studies in the Sunderbans and Kerala’s coastal wetlands have shown that dense mangrove forests reduce cyclone damage by absorbing energy and preventing shoreline erosion. This reduces human casualties, property loss, and economic disruption.

Urban flood mitigation: Urban wetlands in Chennai and Pune have historically absorbed monsoon floods, but encroachment and pollution have diminished their efficacy. Restoration and protection of urban wetlands can complement grey infrastructure such as stormwater drains, reducing reliance on costly engineering solutions.

Policy implications: Integrating wetlands into disaster risk reduction planning under CRZ and NPCA frameworks, along with community engagement, ensures multifunctional use — conservation, livelihood support, and disaster mitigation. Such approaches align ecological integrity with human resilience, making wetlands critical components of sustainable development strategies.

Attribution

Original content sources and authors

SS
Soumya Swaminathan
TH
The Hindu
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