Biochar represents a soil conditioner that can change the physical and hydraulic properties of the soil. To
date, little information is available about the biochar-induced changes on physical and hydraulic
properties of
fine textured soils. Therefore, an evaluation of its effects before the
field use is advisable. The
main objective of this investigation was to evaluate the impact of biochar addition on saturated (Kfs) and
unsaturated (K(h)) hydraulic conductivity, water retention, capacitive indicators such as macroporosity
(Pmac), air capacity (AC), plant available water (PAWC) and relative
field capacity (RFC, equal to the ratio