Effect of stress on stereological parameters of polished sections of soil samples*
A. Guc 1
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Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4,20-236 Lublin, P.O. Box 121, Poland
Int. Agrophys. 1995, 9(4): 311-318
Subjecting soil to uniaxial stress causes its compaction and, at the same time, a change in its structure. So, it is important to find methods allowing to estimate such changes. The present study proposes the use of a stereological method, and estimators of a few physical values, eg. porosity and interaggregate distance, have been selelcted for the analysis. Attempts have also been made to find the answer to the question whether it is possible to determine the number of soil aggregates, which had been destroyed during sample compression, using stereological methods. The answer to this question can be obtained by analysing the changes in granulometric distribution, which ware connected with the change in the number of aggregates in individual fractions. It has been indicated that the procedure, the idea of which had been presented earlier by Rush, is fit for determination of such distribution.
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