Does biochar application alter heavy metal dynamics in agricultural soil?

Application of Biochar for Soil Remediation

“…However, greater uptake does not necessarily result in a reduction of plant biomass. Subsequently, a thorough analysis of the source material intended for biochar production is critical before land application to avoid increasing the pollutant load of the soil or the availability or mobility of indigenous contaminants (Lucchini et al, 2014b;Madrid et al, 2007;Pérez-de-Mora et al, 2006). Recently, it has been demonstrated that biochar produced from waste forest residue contains an inherently low metal content (Lucchini et al, 2014b), and although biochar made from this source material caused small changes to metal fractionation, total metal concentrations in both soil and plant tissue remained unaltered.…”

Effect of thermal conversion of pig manure and poultry litter on the content and mobility of Mn and Fe in biochars and in soil after their application

“…This, in consequence, may have a significant effect on the mobility of trace elements (Lucchini et al, 2014). In our research, we observed no directed changes in Fe mobility as well as a considerable decrease in Mn mobility.…”

Effect of Biochar Amendment on Bioavailability and Accumulation of Cadmium and Trace Elements in Brassica chinensis L. (Chinese Cabbage)

“…Various studies have revealed that biochar used as a soil amendment are able to increase soil pH and induced liming effect (Lucchini et al, 2014;Ameloot et al, 2013;Nguyen & Lehmann, 2009). Our results showed that biochar were primarily in the alkaline range and increased the soil pH except bamboo biochar which demonstrated that pH of biochar was dependent on the type of feedstock (Table 3).…”