Impact of biochar and root-induced changes on metal dynamics in the rhizosphere of Agrostis capillaris and Lupinus albus

• Published in: Chemosphere (Oxford) Vol. 139; pp. 644 - 651
• Main Authors: Houben, David, Sonnet, Philippe
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.11.2015
• Subjects: Acidification; Agrostis - metabolism; Agrostis capillaris; Biochar; Biodegradation, Environmental; Cadmium; Charcoal - chemistry; Dynamics; Exchange; Extraction; Heavy metal; Immobilization; lead; liming; Lupinus - metabolism; Lupinus albus; Metals, Heavy - analysis; Metals, Heavy - chemistry; Metals, Heavy - isolation & purification; Metals, Heavy - metabolism; Phytoremediation; Plant Roots - metabolism; Plants (organisms); Pools; Rhizosphere; roots; Sequential extractions; shoots; soil; Soil (material); Soil - chemistry; Soil Pollutants - analysis; Soil Pollutants - chemistry; Soil Pollutants - isolation & purification; Soil Pollutants - metabolism; zinc; Immobilization; Rhizosphere; Sequential extractions; Biochar; Heavy metal; Phytoremediation

•Biochar application has a liming effect in bulk soil.•Adding biochar shift metals from exchangeable pool to carbonate-bound pool in bulk soil.•Root-induced acidification counteracts the liming effect of biochar in rhizosphere.•Metals shifted to carbonate-bound pool were re-mobilized in rhizosphere....