The effects of substitution of natural mixed forest by red oak forest on humus forms and soil properties were investigated in two paired plots: a 50-year-old (Bosco Ginestre) and 80-year-old (Bosco Vacaressino) forest stand. Soil sampling was performed from 3 layers at 49 and 40 points in Bosco Ginestre and Bosco Vacaressino respectively to determine humus forms, soil pH, organic carbon stock, carbon-nitrogen ratio (C:N), available phosphorus and texture.

Supplement to: Ferré, Chiara; Comolli, Roberto (2020): Effects of Quercus rubra L. on soil properties and humus forms in 50-year-old and 80-year-old forest stands of Lombardy plain. Annals of Forest Science, 77(1)