TESTING THE GRAIN-SIZE DISTRIBUTION DETERMINED BY LASER DIFFRACTOMETRY FOR SICILIAN SOILS

  • Costanza Di Stefano | vito.ferro@unipa.it Dipartimento dei Sistemi Agro-Ambientali, Università di Palermo, Italy.
  • Vito Ferro Dipartimento dei Sistemi Agro-Ambientali, Università di Palermo, Italy.
  • Stefano Mirabile Dipartimento dei Sistemi Agro-Ambientali, Università di Palermo, Italy.

Abstract

In this paper the soil grain-size distribution determined by Laser Diffraction method (LDM) is tested using the Sieve-Hydrometer method (SHM) applied for 747 soil samples representing a different texture classification, sampled in Sicily. 005_Di_Stefano(599)_39 28-12-2011 15:01 Pagina 45 The analysis showed that the sand content measured by SHM can be assumed equal to the one determined by LDM. An underestimation of the clay fraction measured by LDM was obtained with respect to the SHM and a set of equations useful to refer laser diffraction measurements to SHM was calibrated using the measurements carried out for 635 soil samples. Finally, the proposed equations were tested using independent measurements carried out by LDM and SHM for 112 soil samples with a different texture classification.

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Published
2012-06-22
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Original Articles
Keywords:
Particle-size distribution, Sieve-Hydrometer method, Laser Diffraction method.
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How to Cite
Di Stefano, C., Ferro, V., & Mirabile, S. (2012). TESTING THE GRAIN-SIZE DISTRIBUTION DETERMINED BY LASER DIFFRACTOMETRY FOR SICILIAN SOILS. Journal of Agricultural Engineering, 42(3), 39-36. https://doi.org/10.4081/jae.2011.3.39