Effects of biochar application on root traits: a meta-analysis

Effects of biochar application on root traits: a meta-analysis - Xiang - 2017 - GCB Bioenergy - Wiley Online Library

"Overall, biochar application increased root biomass (+32%), root volume (+29%) and surface area (39%). The biochar-induced increases in root length (+52%) and number of root tips (+17%) were much larger than the increase in root diameter (+9.9%); this result suggests that biochar application benefits root morphological development to alleviate plant nutrient and water deficiency rather than to maximize biomass accumulation. "

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