Nitrogen-Rich Soil Doubles Tropical Forest Regrowth, Study Finds

Tropical forests can recover twice as fast after deforestation if their soils contain sufficient nitrogen, according to new research from the University of Leeds. The study, published January 15, 2026, tracked forest regrowth across Central America for decades and revealed the critical role of nitrogen in accelerating the return of trees and boosting carbon capture.

The research demonstrated that soil nutrients play a decisive role in natural reforestation. By monitoring forest plots over an extended period, scientists observed a significant correlation between nitrogen levels in the soil and the speed of forest regeneration. The findings suggest that nature-based reforestation strategies, which focus on enhancing soil health, could be more effective than relying solely on fertilizers.

Faster regrowth of tropical forests not only restores biodiversity but also significantly increases the amount of carbon captured from the atmosphere. This has important implications for combating climate change, as healthy, rapidly growing forests act as vital carbon sinks. The study highlights the potential of leveraging natural processes to enhance carbon sequestration and mitigate the impacts of deforestation.

The researchers emphasized the importance of understanding soil composition when planning reforestation efforts. By identifying areas with nitrogen-rich soils, conservationists can prioritize these locations for natural regeneration, maximizing the speed and effectiveness of forest recovery. This approach offers a sustainable and cost-effective way to restore degraded landscapes and enhance their ecological value.