Effects of biochar and manure amendments on water vapor sorption in a sandy loam soil

E. Arthur, Markus Tuller, P. Moldrup, L. W. de Jonge

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Over the last decade, the application of biochar (BC) as a soil amendment to sequester carbon and mitigate global climate change has received considerable attention. While positive effects of biochar on plant nutrition are well documented, little is known about potential impacts on the physical properties of soils, especially on water retention at low matric potentials. To overcome this knowledge gap, the effects of combined BC (0 to 100Mgha-1) and manure (21 and 42Mgha-1) applications on water vapor sorption and specific surface area were investigated for a sandy loam soil. In addition, potential impacts of BC aging were evaluated. All considered BC-amendment rates increased water retention, especially at low matric potentials. The observed increases were attributed to a significant increase of soil organic matter and specific surface area (SSA) in BC-amended soils. Hysteresis of the water vapor sorption isotherms increased with increasing BC application rates. Biochar age did not significantly affect vapor sorption and SSA.

Original languageEnglish (US)
Pages (from-to)175-182
Number of pages8
JournalGeoderma
Volume243-244
DOIs
StatePublished - Apr 1 2015

Fingerprint

biochar
sandy loam soils
sandy loam
water vapor
sorption
manure
matric potential
surface area
water retention
soil amendment
hysteresis
soil organic matter
nutrition
global climate
isotherm
soil
physical property
climate change
carbon
effect

Keywords

  • Adsorption
  • Desorption
  • Hysteresis
  • Organic carbon
  • Specific surface area
  • Water retention

ASJC Scopus subject areas

  • Soil Science

Cite this

Effects of biochar and manure amendments on water vapor sorption in a sandy loam soil. / Arthur, E.; Tuller, Markus; Moldrup, P.; de Jonge, L. W.

In: Geoderma, Vol. 243-244, 01.04.2015, p. 175-182.

Research output: Contribution to journalArticle

Arthur, E. ; Tuller, Markus ; Moldrup, P. ; de Jonge, L. W. / Effects of biochar and manure amendments on water vapor sorption in a sandy loam soil. In: Geoderma. 2015 ; Vol. 243-244. pp. 175-182.
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