Home > Research > Publications & Outputs > Effects of acidic and neutral biochars on prope...

Electronic data

  • 1-s2.0-S0045653517305374-main

    Rights statement: This is the author’s version of a work that was accepted for publication in Chemosphere. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemosphere, 180, 2017 DOI: 10.1016/j.chemosphere.2017.04.014

    Accepted author manuscript, 1.1 MB, PDF document

    Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

Links

Text available via DOI:

View graph of relations

Effects of acidic and neutral biochars on properties and cadmium retention of soils

Research output: Contribution to journalJournal articlepeer-review

Published
  • Fangjie Qi
  • Zhaomin Dong
  • Ravi Naidu
  • Nanthi S. Bolan
  • Dane Lamb
  • Yong Sik Ok
  • CuiXia Liu
  • Naser Khan
  • M. A. H. Johir
  • Kirk Taylor Semple
Close
<mark>Journal publication date</mark>08/2017
<mark>Journal</mark>Chemosphere
Volume180
Number of pages10
Pages (from-to)564-573
Publication StatusPublished
Early online date5/04/17
<mark>Original language</mark>English

Abstract

In this study, an acidic biochar and a neutral biochar were applied at 5 wt% into two soils for an 11-month incubation experiment. One Ferrosol soil (Ba) was slightly acidic with low organic matter and the other Dermosol soil (Mt) was slightly alkaline with high organic matter. The acidic (pH = 3.25) wood shaving (WS) biochar had no marked impact on nutrient levels, cation exchange capacity (CEC), pH and acid neutralisation capacity (ANC) of either soil. By contrast, the neutral (pH = 7.00) chicken litter (CL) biochar significantly increased major soluble nutrients, pH, ANC of soil Ba. In terms of C storage, 87.9% and 69.5% WS biochar-C can be sequestrated as TOC by soil Ba and Mt, respectively, whereas only 24.0% of CL biochar-C stored in soil Ba and negligible amount in Mt as TOC. Biochars did not have significant effects on soil sorption capacity and sorption reversibility except that CL biochar increased sorption of soil Ba by around 25.4% and decreased desorption by around 50.0%. Overall, the studied acidic C rich WS biochar held little agricultural or remedial values but was favourable for C sequestration. The neutral mineral rich CL biochar may provide short-term agricultural benefit and certain sorption capacities of lower sorption capacity soils, but may be unlikely to result in heightened C sequestration in soils. This is the first study comprehensively examining functions of acidic and neutral biochars for their benefits as a soil amendment and suggests the importance of pre-testing biochars for target purposes prior to their large scale production.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Chemosphere. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemosphere, 180, 2017 DOI: 10.1016/j.chemosphere.2017.04.014