Scientists have traditionally believed that warmer forests would decompose dead wood faster, but new research suggests otherwise. A study led by Pascal Edelmann at the Technical University of Munich analyzed global forests and found that dead wood is accumulating faster than it decomposes, particularly in colder regions.
The researchers mapped dead wood stocks and used five vegetation models to predict tree growth and mortality. By measuring decomposition rates at various sites, they concluded that the balance between dead wood formation and decomposition slightly favors accumulation, with dead wood expected to increase by about 5% by century’s end. This trend varies regionally, with the cold north accumulating the most dead trees, while tropical regions see limited growth due to rapid decay from heat and moisture.
The findings indicate that climate change will likely lead to more dead wood in forests, highlighting its ecological importance as a habitat for many species. These insights could inform forestry practices and policies aimed at preserving dead trees rather than removing them. The research was published in Communications Earth & Environmental.
