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Impact of Biochar on Soil Properties, Pore Water Properties, and Available Cadmium by Jiao Su; Xia Weng; Zijian Luo; Huchen Huang; Weisheng Wang is a Environmental Science article available to read on EtoBox.

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Some effects of biochar on soil properties (such as pore water DOC) are not very clear. The changes of soil properties [cation exchange capacity (CEC)], pore water properties [pH, dissolved organic carbon (DOC), and Cd concentration (C-Cd)], Cd concentration measured by diffusive gradients in thin films (C-Cd), and available Cd content (Cd in weak acid extractable state and reducible state, C-Cd) determined by the BCR sequential extraction procedure over time after biochar addition were studied by soil incubation and potted corn experiments with five soils from a mining area. The results showed increases of 20.3%-64.6% in CEC and 0.34-1.02 in pH (both p < 0.05) in the soil incubation after adding biochar. The DOC concentration was reduced by 8.2%-33.2% (p < 0.05). C-Cd, C-Cd, and C-Cd decreased by 14.2%-47.2%, 15.3%-47.9%, and 22.3%-61.4%, respectively. During the corn cultivation phase, CEC increased by 5.1%-29.0%, and DOC concentration decreased by 10.4%-41.3% (p < 0.05). C-Cd, C-Cd, and C-Cd decreased by 5.9%-22.4%, 7.2%-25.1%, and 10.5%-64.8%, respectively. Biochar effectively increased the biomass of corn roots and reduced the concentration of Cd in the roots. Biochar altered

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Author

Jiao Su; Xia Weng; Zijian Luo; Huchen Huang; Weisheng Wang

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)