Deadwood contains 10-20% of the global forest carbon stocks, and variations in their decomposition rate produce a huge impact on regional and even global carbon emissions. To achieve the goals of global carbon neutrality in 2050 and climate neutrality in 2067, many countries have adopted afforestation as a crucial way to enhance natural carbon sinks. However, various anthropogenic factors, such as afforestation methods and tree species selection, may accelerate the decomposition rate of woody de...