Half of replanted tropical trees don’t survive, new study finds

By UK Centre for Ecology & Hydrology
November 14, 2022
Category: Forestry
Region: International

On average, about half of trees planted in tropical and sub-tropical forest restoration efforts do not survive more than five years, but there is enormous variation in outcomes, new research has found. The study analysed tree survival and growth data from 176 restoration sites in tropical and sub-tropical Asia, where natural forests have suffered degradation. The team found that, on average, 18% of planted saplings died within the first year, rising to 44% after five years. However, survival rates varied greatly amongst sites and species, with some sites seeing over 80% of trees still alive after five years, whereas at others, a similar percentage had died. The findings are published today in the Philosophical Transactions of the Royal Society B: Biological Sciences.

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