Characterization of pore size distributions within soils by mercury intrusion and water-release methods

Research output: Contribution to journalArticlepeer-review

Abstract

I measured and interpreted soil pore size distributions for undisturbed, oven-dried peds using mercury intrusion porosimetry. The pore size distributions were compared with those calculated from moisture release data. A correlation between water retention difference by water-release methods and water storage pore volumes (50 to 0.5 μ) by mercury intrusion was established with an R2= 0.58 over a variety of soil texture and bulk density ranges. Most of the variation occurred for soil samples high in either sand or clay. In addition, root-restricting class limits were developed based on volume of root size pores (200 to 10 μ) within oven-dried peds that were large enough to permit root tip and root hair penetration.

Original languageEnglish (US)
Pages (from-to)400-404
Number of pages5
JournalSoil Science
Volume139
Issue number5
DOIs
StatePublished - May 1985

ASJC Scopus subject areas

  • Soil Science

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