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Biochar under a microscope, Brownsort, UK Biochar Research Centre. From: http://www.nakanoassociates. com/biochar/
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Recently biochar gained importance as a way to deal with global climate change, by sequestering C into soils, but also as a soil amendment and bioremediation tool. Many studies have demonstrated the positive influence of biochar on soil quality and subsequently, plant growth, although the results are not consistent and climate seems to be the main...
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... forms of Cu, Ni, Zn, Cd and Pb, as well as the risk of leaching of Cu, Zn, Ni and Cd. Freddo et al. (2012) reported that the concentrations of metals, metalloids and PAH in four plant-based biochars (rice straw, bamboo, redwood and maize) were lower than those reported as acceptable for sewage sludge and compost. Biochar has high total porosity (Fig. 1) therefore it can retain water in small pores and increase soil water holding capacity (Asai et al., 2009). This may enhance water availability to crops and prevent form erosion. Some authors suggest that it can be an important tool to manage water in agricultural production, particularly under water stress conditions. For example, ...
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