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EnvironmentSource: The Hindu

Total Economic Value of Pichavaram Mangrove Forest Estimated at Rs 2,485.38 Crore

Friday, 4 September 2026
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Key Points

Last Updated: 04-09-2026. A landmark ecological study has estimated the Total Economic Value (TEV) of Tamil Nadu's Pichavaram Mangrove Forest at Rs 2,485.38 crore, underscoring its crucial ecological and economic roles. This valuation is significant for UPSC aspirants, particularly in GS Paper 3, which covers Environmental Conservation and Sustainable Development.

Key Facts About the Pichavaram Mangrove Forest

  • Geographical Location & Hydrography: Located in the Cuddalore district of Tamil Nadu, Pichavaram is strategically situated between the Vellar and Coleroon estuaries, forming the productive Killai backwater complex.
  • Geomorphology: An intertidal forested wetland, it features a labyrinth of approximately 4,400 canals connecting river mouths and the Bay of Bengal.
  • Diverse Vegetation: Encompasses mangrove vegetation, salt marshes, and Dry Evergreen Forests.
  • Permanent Submersion: Unlike many tidal flats, these mangroves are rooted in shallow, brackish water.
  • Flora: Dominated by Rhizophora apiculata and Avicennia marina, featuring stilt and breathing roots respectively.
  • Fauna: A nutrient-rich nursery for marine life, supporting species like tiger prawns and mud crabs, and notable avian species.
  • Disaster Risk Reduction (Bio-Shield): Acts as a buffer zone, stabilizing shorelines and aiding climate change adaptation.
  • Global Recognition: Designated as a Ramsar Wetland in 2022 and recognized as an Important Bird and Biodiversity Area (IBA).

India's Ecological Wealth and Global Conservation Efforts

The Pichavaram Mangrove Forest's valuation highlights its macro-level significance in India's ecological wealth. It aligns with India's strategic goals of environmental conservation and sustainable development. The study emphasizes the need for integrating ecological valuations into national accounting systems, reflecting India's commitment to global conservation efforts. With 50% of global mangrove ecosystems at risk, Pichavaram's conservation is crucial for maintaining biodiversity and ecological balance.

UPSC Relevance

  • GS Paper 3: Environment and Ecology, focusing on conservation strategies and sustainable development.
  • Prelims Angle: Questions on the geographical location, ecological significance, and global recognition of Pichavaram Mangroves.
  • Mains Angle: Analytical themes on ecosystem services, disaster risk reduction, and integration of ecological values into economic planning.
  • Essay Paper: Topics on environmental conservation and the role of natural ecosystems in sustainable development.

FAQ Section

  • What is the Total Economic Value of Pichavaram Mangrove Forest? The Total Economic Value (TEV) of the Pichavaram Mangrove Forest is estimated at Rs 2,485.38 crore, highlighting its ecological and economic importance.
  • Why is the Pichavaram Mangrove Forest important? It provides critical ecosystem services such as carbon sequestration, coastal protection, and supports biodiversity, making it vital for environmental sustainability.
  • What are the key features of the Pichavaram Mangrove Forest? Key features include its strategic location, diverse vegetation, role as a bio-shield, and global recognition as a Ramsar Wetland and Important Bird and Biodiversity Area.

Detailed Coverage

  • Capturing Non-Market Value: Ecosystem worth is Rs 1.83 crore per hectare, highlighting ignored ecological benefits.
  • Dominance of Sub-surface Carbon Sink: Soil organic carbon contributes nearly half of the TEV, storing 251.14 tonnes of carbon per hectare.
  • Multi-Faceted Ecosystem Services: Provides coastal protection, oxygen replenishment, and supports eco-tourism.
  • Nature-Based Solutions (NbS): Functions as a natural shield for disaster risk reduction and supports sustainable fisheries.
  • Global Conservation Context: 50% of global mangrove ecosystems are at risk, as per the IUCN Red List.
  • Way Forward for Policy Integration: Recommendations for integrating valuations into Natural Capital Accounting and utilizing PES.
  • Geographical Location & Hydrography: Located in Tamil Nadu, between the Vellar and Coleroon estuaries.
  • Geomorphology: Intertidal forested wetland with a complex network of canals.
  • Diverse Vegetation: Includes mangrove vegetation, salt marshes, and Dry Evergreen Forests.
  • Permanent Submersion: Mangrove trees are rooted in shallow, brackish water.
  • Flora: Dominated by Rhizophora apiculata and Avicennia marina.
  • Fauna: Supports commercial marine species and notable avian species.
  • Disaster Risk Reduction (Bio-Shield): Stabilizes shorelines and aids in climate change adaptation.
  • Global Recognition: Designated as a Ramsar Wetland in 2022 and recognized as an Important Bird and Biodiversity Area.
Environment

Practice Questions

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Question 1 of 50 / 5 answered
1

In the context of ecological valuation, the term that refers to the economic worth derived from the ecosystem's ability to provide benefits that are not traded in traditional markets, such as carbon sequestration and coastal protection, is best described as what?