The trees across all forest types are projected to suffer severe losses by 2090 in 3 of 4 scenarios modelled.
The trees across all forest types in the region are projected to suffer severe losses by 2090 in three of four scenarios modelled, found the study.
The trend of decline be stopped and reversed, so tree cover in the region increases instead, only in the scenario where policies to address both climate change and land use change are enacted.Said the study’s lead author Sean Pang: “Policymakers must recognise that addressing both climate and land use change is crucial for protecting the fate of South-east Asia’s trees, and likely for much of the region’s biodiversity.
“It is hard to say if climate change or land use change is the bigger threat,” said Dr Pang, now a postdoctoral fellow at the Aarhus University in Denmark. “Reduce land clearance but still rely massively on fossil fuels for societal development? Montane systems will be devastated,” Dr Pang said. For example, the most ideal pathway is one where the world takes steps to cut emissions and develop more sustainably, resulting in the lowest levels of global warming.
“Unexpectedly, losses were overall greatest under intermediate climate change pathways rather than under the most extreme pathway,” said the researchers. The researchers say that under these two scenarios, the most at-risk trees are those found in coastal and lowland areas, such as mangroves or tropical rainforests.
When tree diversity in the region is lost, the intangible links they have to the region’s unique cuisine and culture are severed too.
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