The soil used in this experiment was a pseudo luvisol with
dysmull, collected from a forested area located at Mélisey,
Haute-Saône, France (477530 latitude, 65800 longitude). Soil
samples were collected from within the top 20 cm of the soil layer
and sieved through a 1 cm mesh. Aerobically digested SS from a
domestic wastewater treatment plant in the village of Mélisey
was also used. The physico-chemical characteristics of the soil and
SS are provided in Table