Sentence examples for source soil from inspiring English sources
For most geochemical elements, the uncorrected source soil concentrations showed a smaller difference in concentrations relative to the mobilized soil as compared to the corrected source soil.
Overall, it was found that the eroded material was enriched in both fine-grained and carbon-rich particles relative to the source soil.
Despite sieving the samples, there were still particle size and organic carbon content differences between the source soil and the mobilized soil.
Aggregate size distribution in sediments was different from that in source soil and was significantly correlated to sediment concentration in runoff.
For each soil source, soil samples were randomly collected from different points at depths between 0 and 15 cm using a hand-held soil auger and then bulked to get a composite sample.
To account for these differences, particle size, and sometimes additional organic matter, correction factors are often applied to the source soil concentrations in an attempt to make the two sample types more directly comparable.
Physical and chemical properties measured in source soils and sediment included fallout radionuclides (137Cs, excess 210Pb), major and minor element geochemical constituents, total organic carbon and particle size.
In general, sediment content of NH4F-extractable (aluminium (Al -associated) P wAl -associatedly lower and NaOH-extractable (iron (Fe)-associated) significantly higher than in source soils.
All CW sediments were characterised by similar total P content but clearly higher content of anion exchange resin-extractable P in fresh sediments than the source soils.
Differences in the particle size and organic carbon content of source soils could explain much of the variation in these properties in downstream sediment, rather than selective transport effects.
When δ13C and δ15N were compared between SS and potential source soils during three storm events, SS δ13C and δ15N in the forest stream were similar to forest floor δ13C and δ15N.
