Bacteria in sediments: Pore size effects

H. S. Phadnis, J. C. Santamarina

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


Field data show that cell counts decrease with sediment depth. Suggested limiting factors include age, high temperature, low porosity and a lack of water, nutrients or energy. This letter shows that pore size distribution, rather than porosity, can properly account for the reduction in population with depth. Clay mineralogy controls the constitutive parameters that define pore size; therefore, the sediment mineralogy must be properly considered in the analysis of bioactivity in sediments.

Original languageEnglish (US)
Pages (from-to)91-93
Number of pages3
JournalGeotechnique Letters
Issue number4
StatePublished - Dec 2011
Externally publishedYes


  • Clays
  • Remediation
  • Sands
  • Shear strength
  • Stiffness
  • Vegetation

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences (miscellaneous)


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