1
Amazon Rainforest
- Annual Carbon Sequestration (GtC/year)
- 2.2
- Key Characteristics
- Largest global sink with high biomass productivity

This ranking evaluates the carbon sequestration capacity of global forest ecosystems based on Net Primary Productivity (NPP) and biomass accumulation rates. These forest belts are vital hubs for mitigating climate change and regulating the global carbon cycle, playing a critical role in maintaining planetary ecological balance.
| Rank | Forest Region | Annual Carbon Sequestration (GtC/year) | Key Characteristics |
|---|---|---|---|
| 1 | Amazon Rainforest | 2.2 | Largest global sink with high biomass productivity |
| 2 | Congolian Rainforests | 1.5 | High sequestration efficiency, core African sink |
| 3 | Eurasian Boreal Forests | 1.3 | Vast soil organic carbon stores, cold-adapted |
| 4 | Southeast Asian Island Rainforests | 0.9 | Dense canopy cover, complex vertical structure |
| 5 | North American Boreal Forests | 0.85 | Expansive Taiga, regulating N. Hemisphere cycle |
| 6 | Temperate Broadleaf and Mixed Forests | 0.6 | Long growth cycle, high sequestration stability |
| 7 | South American Atlantic Forests | 0.45 | Biodiversity hotspot, high secondary regrowth |
| 8 | Australian Tropical Rainforests | 0.35 | High carbon density, protected by unique climate |
| 9 | European Temperate Forests | 0.3 | Sustainable management, significant afforestation |
| 10 | Himalayan Forests | 0.25 | Vertical zonation, montane ecosystem carbon capture |
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