Soil respiration as an index of soil aeration

Research output: Contribution to journalConference article

17 Scopus citations


The accurate determination of available soil O2 is problematic due to the dynamic interaction of physical and biological soil properties. This study was conducted to evaluate combined effects of soil bulk density, water content, and organic and inorganic amendments on available soil O2 using CO2 evolution from soil respiration as an index. Optimal levels of soil aeration vary with respiratory O2 consumption, which is influenced by soil amendments. Comparisons were made between Pima clay loam [fine-silty, mixed (calcareous), thermic, Typic torrifluvent] amended with inorganic fertilizer or anaerobically digested liquid sewage sludge at equivalent N loading rates. Respiration rates in the inorganic-fertilizer- and sludge-amended soil samples were equivalent.

Original languageEnglish (US)
Pages (from-to)428-432
Number of pages5
JournalSoil Science Society of America Journal
Issue number2
StatePublished - Jan 1 1990
Event54th Annual Meeting of Soil Science Society of America - San Antonio, TX, USA
Duration: Oct 21 1990Oct 26 1990


ASJC Scopus subject areas

  • Soil Science

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