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Cut Vines, Grow Forests Faster!
15 Jul
Summary
- Cutting climbing vines aids tropical forest canopy recovery three times faster.
- This restoration method costs up to ten times less than planting new trees.
- The research was conducted over many years in Malaysian Borneo.
Tropical rainforests damaged by logging can recover up to three times faster by simply cutting back aggressive climbing vines, according to long-term research in Malaysian Borneo. This method is also significantly more cost-effective, potentially saving up to ten times the expense of traditional tree-planting programs. The findings offer a vital strategy for restoring damaged ecosystems and enhancing carbon sequestration, crucial in the face of climate change and biodiversity loss.
In healthy forests, woody vines called lianas are a natural part of the ecosystem. However, after selective logging creates openings, lianas proliferate, using trees for support and competing for resources. This hinders natural forest recovery. Traditional restoration, like planting young dipterocarp trees, is slow and takes decades to impact forest structure.
Researchers in Borneo used lidar technology to map forest structure in experimental plots. Areas where vines were cut showed taller growth and thicker canopies. These forests also stored carbon three times faster and experienced lower tree mortality rates compared to plots with only sapling planting or natural recovery.
While cutting vines accelerates tree growth, complete removal could harm biodiversity as lianas provide habitats. Researchers suggest a partial removal approach to return vines to natural levels could be more beneficial for the ecosystem. Conservation organizations are piloting similar vine management projects globally to develop practical guidelines for sustainable forestry and forest restoration.
