Numerous human activities lead to chemical contamination of soil, primarily via atmospheric deposition and infiltration of stormwater.
Previous studies have shown that the bacterial community is influenced by the application of industrial wastes, such as tannery sludge, that change the chemical properties of soil, primarily the soil pH and salinity19, as well as the available Ca, Mg, and Mn20.
All soil units classified as histosols (a soil consisting primarily of organic materials and defined as having 40 cm or more of organic soil material in the upper 80 cm) were assumed to be peat soil in these two countries.
Based on data from Mars rovers (Spirit, Opportunity, and Curiosity), Martian surface soil consists primarily of plagioclase, pyroxene, and olivine, with minor amounts of Fe and Ti oxides (e.g., magnetite, ilmenite, and hematite) and various alteration minerals (e.g., sulfates, phyllosilicates, and carbonate) (Yen et al. 2005; McSween et al. 2010; Bish et al. 2013).
The soil consists primarily of deep pumice, which does not hold water well.
The soil is primarily of alluvial origin, underlain by dolomite bedrock.
There was some sorption of iodine in the treated soils, primarily by iron and aluminum oxides (Whitehead, 1973).
The island's soil is composed primarily of volcanic material, lagoonal deposits and coralline debris, with silty sand from the dredging.
The clay-rich hilltop soils are primarily a consequence of blanketing of the area with boulder clay or glacial till during the recent glaciations.
Soils, distributed in a complex pattern, are composed primarily of red earths, with brown soils and yellow gritty clays on the plateaus.
The main challenges for the development of agricultural films biodegradable in the soil concern primarily the effects of ageing and degradation during the useful lifetime, which may cause premature losses in their mechanical performance.
