Particle Size Analysis of Soils: the Problem of Preparation and Analysis of Soils By Different Methods
Keywords:
granulometric analysis, laser diffraction method, particle sizeAbstract
Difference between the results of granulometric analysis by the method of sedimentation and laser diffraction cause (1) non-sphericity of particles, (2) the presence of organic matter and (3) the heterogeneity of particle density. After removal of the organic substances оr at low content of slit the differences between the methods became minimal. Dispersion of soil suspension by ultrasound is mandatory pre-processing for and laser diffraction, ultrasonic power is increased by the presence in samples of solid microaggregates that is dependent on the type and origin of interparticle bonds. The use of pyrophosphate with ultrasound remains preferred treatment for sedimentometric analysis.
References
Berezin, P. N. 1983. Particle-Size Distributions Soils and Parent Rocks. Pochvovedenie, No. 2,64-72
Fedotov, G. N., Е. V. Shein, V. I. Putlyaev, Т. Molov. А. Arkhangel’skaya, А. V. Eliseev, аnd Е. Yu.Milanovskii. 2007. Physicochemical Bases of Differences between the Sedimentometric and Laser-Diffraction Techniquofe Ssoi l Particle-Size Analysis.Eurasian. Soil Sci., 40 (3), 281-288
Mathieu, CI. ‚ F. Pieltain. 1998. Analyse physique des sols. Lavoisier, Paris.
Shein, Е.V. , Е. Yu. Milanovsky аnd А. Z. 2006. The Granulometric Composition: the Role of Soil Organic Matteri in Data Distinctions between “Sedimentation апа Laser Diffraction Analysis,” Eur. Soil Sci., 39 (Suppl. 1), 84-90
Vadyunina, A. F., Z. A. Korchagina. 1986. Methods for Studying the Physical Properties of Soils. Agropromizdat, Moscow (in Russian)
Downloads
Published
Issue
Section
License
Copyright (c) 2011 Bulgarian Journal of Soil Science, Agrochemistry and Ecology
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
