Lewis, Particle size analysis of soils--a comparison of dry and wet sieving techniques, Forensic Sci. Int. 24 (1984) 209-217.Robertson, J.; Thomas, C.J.; Caddy, B.; Lewis, A.J.M. Particle size analysis of soils: A comparison of dry and wet sieving techniques. Forensic Sci. Int....
The hydrometer method of determining the colloidal content of soils produced results suitable for use in the research activities of the Y.P.D.A., only if the samples were pre-treated with H 2O 2 and HC1 so as to eliminate all organic matter and calcium carbonate. Since in our routine te...
Designation: D422 – 63 (Reapproved 2007) Standard Test Method for Particle-Size Analysis of Soils1 This standard is issued under the ?xed designation D422; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last ...
•Clay, silt, and sand content for various layers had moderate spatial variations.•Soils were overall sandy in the north and clayey in the south.•The variation of soil textures was uneven with the increase of latitude.•Spatial variability of clay content was similar to fractal dimensions...
THE DISTRIBUTION OF CHROMIUM SPECIES AS A FUNCTION OF PARTICLE SIZE FOR CHROMIUM WASTE LADEN SOILS FINAL REPORTWith the continuing concern about the presence of chromite ore processing residue (COPR) at various sites in Hudson County, ... L Lin,T Fan,PJ Lioy,... 被引量: 5发表: 2008年 In...
Microscopy is one of the techniques that allow examination of the micro-morphology of soils. With the development of digital image acquisition techniques, computer vision based on image analysis techniques integrated with microscopy are preferable to describe, interpret, and measure components, features,...
Abstract Sources of intracellular and extracellular enzymes in soils are primarily the microbial biomass and to a lesser extent plant and animal residues. Free enzymes in soil are adsorbed on organic and mineral constituents or complexed with humic substance, or both (Kisset al. 1975, Skujins 1978...
The analysis of literature sources and a database on soil physical properties collected by the Department of Soil Physics and Amelioration of Soils of the Faculty of Soil Science of Moscow State University made it possible to compare three major constituents of the particle-size distribution analysis...
It has been revealed that Pb in plants was significantly related with DTPA-extractable fractions in soils24. The passivation effect was enhanced as the dosage of passivators in single application treatment groups increased. The DTPA-Pb concentration significantly decreased by 123.86 (mg kg−1), ...
Most of the metal concentrations in the soils were higher than the background levels in Beijing, and the metal concentrations and total organic matter (TOC) contents generally increased as the particle size decreased. Each metal except Hg significantly positively correlated with the TOC. The metals...