Impact of sugarcane bagasse-derived biochar on heavy metal availability and microbial activity: A field study

Chengrong Nie, Xing Yang, Nabeel Khan Niazi, Xiaoya Xu, Yuhui Wen, Jörg Rinklebe, Yong Sik Ok, Song Xu, Hailong Wang

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

In the current study, we conducted a field experiment using the test plant, Brassica chinesis L. (pak choi), to investigate the effect of sugarcane bagasse-derived biochar on the bioavailability of cadmium (Cd), copper (Cu) and lead (Pb), and the health of soil microbiota in a contaminated soil. Biochar application significantly (P < 0.05) increased pak choi yield. Bioavailability of heavy metals to plant shoots and roots decreased with increasing biochar application rates (at 0, 1.5, 2.25 and 3.0 t ha−1). Sequential extraction of the biochar-treated and -untreated soil revealed that exchangeable Cd reduced whereas organically-bound fraction increased with increasing biochar rate. The labile fractions of Cu and Pb decreased, but the residual fraction increased in biochar-treated soils compared to the control. Urease, catalase and invertase activities, and the populations of bacteria and actinomycetes were significantly enhanced, whereas fungi population declined in biochar-treated soils. This study highlights that sugarcane bagasse biochar has the potential to support the remediation of soils contaminated with heavy metals, and as such can improve the yield and quality of agricultural crops.

Original languageEnglish
Pages (from-to)274-282
Number of pages9
JournalChemosphere
Volume200
DOIs
Publication statusPublished - 2018 Jun 1

Fingerprint

Heavy Metals
microbial activity
Availability
heavy metal
Soils
bioavailability
cadmium
soil
Cadmium
remediation
shoot
fungus
copper
beta-Fructofuranosidase
crop
bacterium
Urease
field study
biochar
bagasse

Keywords

  • Bioavailability
  • Enzyme activity
  • Potentially toxic elements
  • Soil contamination
  • Soil remediation

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemistry(all)

Cite this

Impact of sugarcane bagasse-derived biochar on heavy metal availability and microbial activity : A field study. / Nie, Chengrong; Yang, Xing; Niazi, Nabeel Khan; Xu, Xiaoya; Wen, Yuhui; Rinklebe, Jörg; Ok, Yong Sik; Xu, Song; Wang, Hailong.

In: Chemosphere, Vol. 200, 01.06.2018, p. 274-282.

Research output: Contribution to journalArticle

Nie, Chengrong ; Yang, Xing ; Niazi, Nabeel Khan ; Xu, Xiaoya ; Wen, Yuhui ; Rinklebe, Jörg ; Ok, Yong Sik ; Xu, Song ; Wang, Hailong. / Impact of sugarcane bagasse-derived biochar on heavy metal availability and microbial activity : A field study. In: Chemosphere. 2018 ; Vol. 200. pp. 274-282.
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