BharatNotes
What is a Biosphere Reserve?
A Biosphere Reserve is an internationally recognized area designated under UNESCO's Man and the Biosphere (MAB) Programme to promote sustainable development based on combined community efforts and sound science. These reserves serve as living laboratories for testing and demonstrating integrated management of land, water, and biodiversity. The concept was initiated by UNESCO in 1971, and the World Network of Biosphere Reserves (WNBR) was formally established in 1976.
Each biosphere reserve has a three-zone structure: (1) a Core Zone -- strictly protected area for conservation of ecosystems, species, and genetic variation; (2) a Buffer Zone -- surrounds the core and allows activities compatible with conservation such as environmental education and ecotourism; and (3) a Transition Zone -- the outermost area where sustainable economic activities including agriculture and settlements are permitted.
India designated its first biosphere reserve -- the Nilgiri Biosphere Reserve -- in 1986. As of 2025, India has 18 notified Biosphere Reserves covering approximately 91,425 sq. km, of which 13 are recognized by UNESCO under the WNBR. The most recent addition was the Cold Desert Biosphere Reserve (Himachal Pradesh), included in UNESCO's network in September 2025.
Key Features
| # | Feature | Details |
|---|---|---|
| 1 | Governing Body | UNESCO Man and the Biosphere (MAB) Programme |
| 2 | Three Zones | Core Zone (strict protection), Buffer Zone (limited activities), Transition Zone (sustainable use) |
| 3 | Total in India | 18 notified Biosphere Reserves (as of 2025) |
| 4 | UNESCO-recognized | 13 out of 18 are in the World Network of Biosphere Reserves |
| 5 | Area Covered | Approximately 91,425 sq. km across India |
| 6 | First in India | Nilgiri Biosphere Reserve (1986) -- Tamil Nadu, Karnataka, Kerala |
| 7 | Latest UNESCO Entry | Cold Desert Biosphere Reserve, Himachal Pradesh (2025) |
| 8 | Nodal Ministry | Ministry of Environment, Forest and Climate Change (MoEFCC) |
Current Status / Latest Data
- India has 18 Biosphere Reserves spread across mountains, deserts, forests, islands, coasts, and mangroves.
- 13 reserves have received UNESCO recognition: Nilgiri, Gulf of Mannar, Sundarbans, Nanda Devi, Nokrek, Pachmarhi, Simlipal, Achanakmar-Amarkantak, Great Nicobar, Agasthyamalai, Khangchendzonga, Panna, and Cold Desert.
- The Cold Desert Biosphere Reserve (Pin Valley, Spiti, Himachal Pradesh) was added to UNESCO's WNBR in September 2025, bringing the UNESCO-recognized count from 12 to 13.
- Five reserves still await UNESCO recognition: Manas, Dibru-Saikhowa, Dihang-Dibang, Seshachalam, and Kutch.
UPSC Exam Corner
Prelims: Key Facts
- UNESCO MAB Programme launched in 1971; WNBR established in 1976
- India has 18 Biosphere Reserves; 13 are UNESCO-recognized (as of 2025)
- Three-zone model: Core -- Buffer -- Transition
- First Indian Biosphere Reserve: Nilgiri (1986)
- Largest Biosphere Reserve in India: Gulf of Kutch (by area)
- Biosphere Reserves differ from National Parks and Wildlife Sanctuaries in allowing human habitation in the transition zone
Mains: Probable Themes
- Role of biosphere reserves in in-situ conservation vs. ex-situ methods
- Balancing tribal livelihoods with biodiversity conservation in buffer and transition zones
- India's commitment to Kunming-Montreal Global Biodiversity Framework and the role of biosphere reserves in achieving 30x30 targets
- Challenges of climate change, invasive species, and encroachment in managing biosphere reserves
- Comparison of conservation models: Biosphere Reserves vs. National Parks vs. Community Reserves
Sources: UNESCO MAB Programme, PIB - India's Biosphere Reserves, Wikipedia - Biosphere Reserves of India
