An evaluation of methodologies for assessing geogenic carbon in mine soils of the Eastern United States

P. A. Jacinthe, C. D. Barton, S. Maharaj, Rattan Lal

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

6 Citations (SciVal)

Abstract

Methodologies based on spectroscopy, radiocarbon, and chemical reactivity of organic materials have been proposed to assess geogenic carbon (C) pools in soil and sediment samples. This chapter describes the development of two approaches to account for geogenic C in mine soils. The first procedure is based on the selective oxidation of recent organic C using a combination of acid hydrolysis and thermal oxidation. It was evaluated through comparison with the radiocarbon method and was applied in soil-C assessment studies at several reclaimed sites in the Ohio Appalachian region. The second approach examines thermogravimetry as a potential analytical tool for differentiating C in mine soils containing both recent and ancient C fractions. The method was calibrated using recent organic matter (grass litter), carbonate (limestone), and ancient C (coal) fractions. Subsequently, the method was field validated on a chronosequence of reforested minelands in the eastern Kentucky coalfield.

Original languageEnglish
Title of host publicationSoil Carbon Sequestration and the Greenhouse Effect
Pages347-363
Number of pages17
ISBN (Electronic)9780891188599
DOIs
StatePublished - Oct 26 2015

Bibliographical note

Publisher Copyright:
© 2009 by Soil Science Society of America, Inc.

Keywords

  • Acid hydrolysis
  • Carbonate fraction
  • Geogenic carbon assessment
  • Mine soils
  • Ohio Appalachian region
  • Organic carbon fraction
  • Reforested minelands
  • Thermal oxidation
  • Thermogravimetric fractionation procedure

ASJC Scopus subject areas

  • Engineering (all)
  • Agricultural and Biological Sciences (all)

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