Journal
ENVIRONMENTAL POLLUTION
Volume 206, Issue -, Pages 636-643Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2015.08.029
Keywords
Contaminated soil; Glomalin; Biochar; Potentially toxic elements
Categories
Funding
- National Natural Science Foundation of China [41471410]
- Key Beijing Discipline of Ecology [XK10019440]
- USDA National Institute of Food and Agriculture [225891]
Ask authors/readers for more resources
Biochar pyrolyzed from corn stalks at 300 degrees C/500 degrees C and arbuscular mycorrhizae (AMF) were examined independently and in combination as possible treatments for soil remediation contaminated with Cd, Cr, Ni, Cu, Pb, Zn after 35 years following land application of sewage sludge in the 1970s. The results showed that biochar significantly decreased the heavy metal concentrations and their bioavailability for plants, and both biochars had similar such effects. AMF inoculation of corn plants had little effect on heavy metal bioavailability in either control or biochar amended soil, and no interaction between biochar and AMF was observed. Changes in DTPA extractable metals following biochar addition to soil were correlated with metal uptake by plants, whereas pore water metal concentrations were not predictive indicators. This research demonstrates positive benefits from biochar application for contaminated soil remediation, but remain ambiguous with regard to the benefits of simultaneous AMF inoculation on reduction of heavy metal bioavailability. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available