Archive · 6 Aug 2025
IIT Study: India's Forest Loss Exceeds Gains (2015-2019)
Imagine India's forests are like a big puzzle.
A new study from IIT Bombay looked at how this puzzle changed between 2015 and 2019.
They found that for every little bit of new forest added, a much larger area of forest was lost.
Some states gained forest area while others lost more.
The new forests are often in small, disconnected pieces, like tiny puzzle pieces that don't fit together well.
This is a problem because connected forests are healthier for animals and plants.
The study suggests that we should focus on keeping forests connected instead of just adding more trees everywhere.
IIT Bombay study reveals India lost 18 sq km of forest for every 1 sq km gained between 2015-2019.
Nearly half of the forest gain occurred in Andhra Pradesh, Tamil Nadu, Karnataka, and Rajasthan.
Tamil Nadu and West Bengal accounted for almost half the total forest loss during the same period.
Over half the newly added forest covers are fragmented.
Study suggests a need to prioritize structural connectivity in forest planning.
- Who
- IIT Bombay researchers, led by Prof Raaj Ramsankaran.
- What
- India lost more forest area than it gained between 2015 and 2019.
- When
- Between 2015 and 2019.
- Where
- India
- Why
- To assess changes in forest cover and ecological impact.
IIT Study Findings
Forest Survey of India (FSI) Perspective
Forest Cover Assessment Methods
IIT Study Findings
Highlights net loss of forest cover and forest fragmentation.
Forest Survey of India (FSI) Perspective
Indicates overall increase in forest cover, according to their data and methods.
Prioritization of Forest Characteristics
IIT Study Findings
Emphasizes the ecological impact of fragmented forests.
Forest Survey of India (FSI) Perspective
Focuses on total area under forest cover.
- Forest Loss Ratio
- 18 sq km lost for every 1 sq km gained
- Study Period
- 2015-2019
- Data Source
- Copernicus Global Land Service (CGLS)
- Key Researchers
- Prof. Raaj Ramsankaran, Dr. Vasu Sathyakumar
- Total Forest Loss (approx.)
- 1,032.89 sq km
- Fragmentation Concern
- Over half the newly added forests are fragmented