Of the eight roofs sampled for soil, pH values ranged from 5.2 to 7.2.
Additionally, compacted and uncompacted areas were sampled for soil salinity at selected areas consisting of Entisols (young alluvial soils).
In 2003, the two fields along with native prairie were sampled for soil quality parameters across two landscape positions.
Eight sampling sites, selected by different history of heavy metal (HM) exposure, were chosen to be sampled for soil, nettle leaves, and newly matured snails.
Ten soil cores were collected from one site, and one core was intensively sampled for soil organic carbon content, pollen analysis and 14C dating.
They have analyzed the soil samples for important soil property parameters at onset of experiment and again after 21 years.
Soil samples for the soil seed bank study were collected at the end of September 2012, during the end of the growing season, after seed production of most herbaceous species, at the same sampling site of the understory vegetation.
Mean depth of soil samples for measured soil variables was 30 cm with a range from 5 to 120 cm (Table 1).
The samples obtained from all terrestrial environments comprised three different sampling plots (for soil, wood-filter), plants (rizhosphere), shelves (spent mushroom compost) different amount of material.
