The Borjuli Wetland

🌿 Borjuli Wetland & Biodiversity Heritage Site (BHS)

📖 PRELIMS POINTER

🔹 What is the Borjuli Wetland?

• The Borjuli Wetland is a biologically rich freshwater marsh and swamp ecosystem that functions as a natural gene bank for wild rice species.
• It is one of India's most important habitats for conserving Crop Wild Relatives (CWRs), which provide valuable genetic resources for future crop improvement and climate-resilient agriculture.
• The wetland has now been declared a Biodiversity Heritage Site (BHS) under the Biological Diversity Act, 2002.

📍 Location

• Located in Sonitpur District, Assam.
• Situated within the Brahmaputra River Valley, one of India's richest floodplain ecosystems.
• The wetland is sustained by seasonal monsoon floods, alluvial channels, and natural drainage systems, creating a dynamic freshwater habitat.

🌾 Key Biological Features

• Natural Habitat of Oryza rufipogon
  • The wetland conserves Oryza rufipogon, the wild progenitor of cultivated rice (Oryza sativa).
  • It represents an invaluable genetic resource for future rice breeding programmes.
• Genetic Diversity
  • Contains genes for resistance to pests, diseases, floods, drought, and salinity.
  • Provides traits essential for developing climate-resilient rice varieties.
• Natural Climate Adaptation
  • Wild rice populations have evolved to withstand prolonged flooding and fluctuating water conditions.
  • Exhibit remarkable resilience to diverse environmental stresses.
• In-situ Conservation
  • Protects genetic diversity within its natural habitat, allowing continuous evolution and adaptation.
  • Supported by ICAR–National Bureau of Plant Genetic Resources (NBPGR) and the Assam State Biodiversity Board.

🌱 Biodiversity Heritage Site (BHS)

🔹 What is a Biodiversity Heritage Site?

• A Biodiversity Heritage Site (BHS) is a unique and ecologically significant area notified for conserving rich biodiversity, rare species, traditional crop varieties, and culturally important ecosystems.
• These sites complement protected areas by safeguarding biologically important landscapes outside National Parks and Wildlife Sanctuaries.

⚖ Legal Framework

🎯 Objectives of BHS

• Conserve unique ecosystems and habitats.
• Protect rare, endemic, threatened, and economically important species.
• Safeguard crop wild relatives and indigenous genetic resources.
• Promote community-based conservation and sustainable resource use.
• Preserve ecological, cultural, and traditional knowledge associated with biodiversity.

🌟 Significance of Borjuli Wetland

• Acts as a natural repository of globally important rice genetic resources.
• Supports development of climate-resilient and disease-resistant crop varieties.
• Strengthens India's long-term food and nutritional security.
• Promotes in-situ conservation of crop wild relatives.
• Enhances resilience of agriculture against climate change and emerging pests.
• Demonstrates the importance of community-led biodiversity conservation.