Deconvolution of Differential Particle-Size Distribution Curves for Vertisols
The deconvolution procedure for splitting the initial particle-size distribution spectrum into constituent fractions makes it possible to refine the traditional indicators of particle-size distribution and gives us new information about the properties of individual particle-size fractions. Owing to...
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Published in | Eurasian soil science Vol. 52; no. 9; pp. 1112 - 1121 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
01.09.2019
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The deconvolution procedure for splitting the initial particle-size distribution spectrum into constituent fractions makes it possible to refine the traditional indicators of particle-size distribution and gives us new information about the properties of individual particle-size fractions. Owing to the deconvolution, it is possible to identify fractions that remain “invisible” upon the traditional visual analysis of the initial particle-size distribution spectra. The new indicators include the average diameter of the particle-size fraction
d
aver
, the dispersion value
D
of each fraction, and the convergence index of the neighboring fractions
h
. Deconvolution helps us to characterize the fractions not by their size boundaries, but by the average particle diameter. Deconvolution has shown that the distribution of major particle-size fractions in Vertisols is consistent with the boundaries of the particle-size factions according to the international classification system and is not consistent with the boundaries of the particle-size classes in the classification by Kachinskii (Russia), in which the width of the classes is variable (index
F
is either 2 or 5). The advantage of the international classification of particle-size fractions is the same width of separate size classes with a constant
F
value (
F
= 3.2). |
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ISSN: | 1064-2293 1556-195X |
DOI: | 10.1134/S1064229319070147 |