Oil mallee biochar improves soil structural properties-A study with x-ray micro-CT

P. R. Quin, A. L. Cowie, R. J. Flavel, B. P. Keen, L. M. Macdonald, S. G. Morris, B. P. Singh, I. M. Young, L. Van Zwieten

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

Employing x-ray computed tomography (μ-CT), we examined the impact of an oil mallee (OM) biochar, at concentrations of 0%, 1% and 5% (w/w), on soil structural traits in three soil types (Vertisol, Ferralsol and Arenosol). The biochar was pyrolysed at a maximum temperature of 550°C, sieved to between 250μm and 2mm prior to amending the soils, had an internal porosity of 75% (v/v) and an organic carbon (Corg) content of 60%. Soil structure was quantified, at a resolution of 70μm, by measuring μ-CT porosity, mean pore radius, fractal dimension and connectivity of the pore space. Addition of 5% OM biochar resulted in higher μ-CT porosity (i.e. ≥70μm) in the Vertisol (p
Original languageEnglish (US)
Pages (from-to)142-149
Number of pages8
JournalAgriculture, Ecosystems and Environment
Volume191
DOIs
StatePublished - Jun 15 2014
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-02-15

ASJC Scopus subject areas

  • Ecology
  • Animal Science and Zoology
  • Agronomy and Crop Science

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