How Can Forests Be Reforested in a Climate-Friendly Way?

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Only a few tree species are flexible enough to survive a century of rapid climate change.

Only a few tree species are flexible enough to survive a century of rapid climate change.

Europe's forests have already been severely affected by climate change. Thousands of hectares of trees have already died due to drought and bark beetles. Scientists from the University of Vienna and the Technical University of Munich have now investigated which trees can be used for reforestation. Their findings: only a few tree species are fit for the future, such as English oak in the UK. However, mixed forests are important for the survival of forests, otherwise the forest ecosystem as a whole could be weakened. The results of the study were recently published in the renowned journal Nature Ecology and Evolution.

Although European forests are naturally home to a mix of trees, the number of tree species is lower than in climatically comparable areas of North America or East Asia. In the future, even fewer species will be available to the forestry industry, as scientists led by Johannes Wessely and Stefan Dullinger from the University of Vienna have shown in their new study. Depending on the region, between a third and a half of the tree species found there today will no longer be able to cope with future conditions. "This is an enormous decline," says lead author Johannes Wessely, "especially when you consider that only some of the species are of interest for forestry".

Read more at University of Vienna

Image: Tree mortality due to bark beetle infestation. Credit: Rupert Seidl