Biochar and Soil Physical Properties

Core Ideas Biochar generally improves the soil physical environment Sandy soils appear to respond more to biochar than clayey soils Long-term studies are needed to conclusively discern the extent of biochar effects Biochar is considered to be a potential soil amendment. However, its implications for soil physical and hydraulic properties have not been widely discussed. Changes in the soil physical environment influence the numerous services that soils provide. This paper (i) reviewed the impacts of biochar on soil compaction, mechanical, structural, hydraulic, and thermal properties; (ii) discussed factors affecting biochar performance; and (iii) identified research areas. Biochar generally reduces soil bulk…