Refining pedotransfer functions for estimating peat bulk density

Steve J. Chapman*, J. Farmer, A. Main, J. Smith

*Corresponding author for this work

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Abstract

Several previous studies have demonstrated the close relationship between peat dry bulk density and gravimetric moisture content. However, the basis for including peat ash (mineral) content or variation in the specific gravity of peat solids has not been covered. Here we present a theoretical basis for estimating peat dry bulk density for saturated peats from values of moisture content and, where available, ash content. The theory is evaluated using datasets obtained from Scotland, Ireland and Indonesia where both dry bulk density and peat moisture content have been measured. Deviations from theory are discussed in terms of peat gas volume and possible errors in the determination of peat dry bulk density.

Original languageEnglish
Article number23
JournalMires and Peat
Volume19
DOIs
Publication statusPublished - 25 Nov 2017

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Keywords

  • Peat ash content
  • Peat dry bulk density
  • Peat moisture content
  • Peat solids specific gravity

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology
  • Soil Science
  • Nature and Landscape Conservation

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