Delhi's Ridge Forest Faces Invasive Species Invasion

Delhi's vital ridge forest areas are facing a significant threat from invasive plant species, including Prosopis juliflora, Leucaena leucocephala, and eucalyptus. These foreign species are identified as major risks to the native biodiversity within these protected zones. In response, a comprehensive eco-restoration and enrichment plantation project has been planned. This ambitious initiative aims to cover approximately 6,303.55 hectares over four financial years.

The project is set to commence in the 2026-27 fiscal year, with plans to restore 1,490 hectares through the plantation of nearly 28.56 lakh saplings. Subsequent years will see continued efforts, with 1,670 hectares targeted in 2027-28, followed by 1,450.55 hectares in 2028-29, and a final phase of 1,693 hectares in 2029-30. These phases involve planting millions of tree saplings, shrubs, climbers, and bamboo.

Environmental experts highlight that species like vilayati kikar have been present in Delhi for about a century and have become widespread. Their rapid growth forms dense canopies that block sunlight, displacing native vegetation and leading to a considerable loss of local biodiversity. The plan has been approved by the Union Ministry of Environment, Forest and Climate Change as part of the working plan for Delhi's forests from 2026-27 to 2036-37.

Crucially, the project requires final clearance from the Supreme Court before implementation can begin. The Ridge forest area is currently under judicial protection, necessitating prior court approval for any significant interventions. This approval process is a critical step before the large-scale restoration efforts can commence.