Data comprise soil methane oxidation results from a group of 30 forested islands in northern Sweden sampled in 2006 and 2007. The islands have different fire histories and represent a retrogressive chronosequence spanning 5000 years. Full details about this dataset can be found at https://doi.org/10.5285/66cc8fd4-e722-44c4-9363-5930b8373b2c
